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HOROLOGICAL

Official Publication of the American Watchmakers Institute 8

HENRY B. FRIED QUESTIONS AND ANSWERS 6 An English Movement By F. Elliott

ARCHIE B. PERKINS TECHNICALLY WATCHES Isochronal 8 Antique Watch Restoration, Part XV

WES DOOR SHOPTALK Errors & 12 Module Retrofitting, Part I Solutions TIMOTHY R. WHITE CLOCKS INSIDE AND OUT 14 A Practical Guide to the Recoil Escapement, Part 2 14

MARVIN E. WHITNEY ELAPSED TIME CLOCKS 18 Part VI: Reassembly

MARSHALL F. RICHMOND PICKLE BARREL 10-Year 24 Basic Jewelry Repair, Lesson 6 Practice Project - Make a Brass Ring Technical JAMES ADAMS NOVICE WATCHMAKER Estimating the Repair 26 of Mechanical Watches Index

EDGAR CLEVES, JR. GEMSTONES 40 28 Spinet

GENE KELTON 30 WATCHES INSIDE AND OUT Citizen Watch Power Cell List DEPARTMENTS

Book Review/4 New Members/11 Readers Write/13 HOROLOGICAL TIMES (ISSN0145-9546) is published monthly and copyrighted by the American AWi Bench Courses/29 Watchmakers Institute, 3700 Harrison Avenue, Cincinnati, Ohio 45211, for $40.00 per year ($4.50 Association News/36 per copy in the United States and $50.00 per year; $5.50 per copy outside the U.S.). Second class Advertisers' I ndex/37 postage paid at Cincinnati, Ohio. POSTMASTER: Send address changes to HOROLOGICAL TIMES, Dates to Remember/37 P.O. Box 11011, Cincinnati, Ohio 45211. Classified Ads/38 George Daniels * FELLOWS * Henry B. Fried Josephine F. Hagans OF THE AMERICAN Orville R. Hagans Hamilton E. Pease WATCHMAKER'S INSTITUTE Milton C. Stevens EXECUTIVE AND EDITORIAL OFFICES Marvin E. Whitney

AWi Central P.O. Box llOll 3700 Harrison Avenue Cincinnati, Ohio 45211 Telephone: (513) 661-3838 Editorial Harold J. Herman: Editor Short orders were and still are a topic of discussion whenever Regina G. Stenger: Associate Editor watchmakers gather. From the amount of time and earnestness Donna Baas : Production Director devoted to the subject, the "how to handle it" seems to have never been solved. Adding to the confusion is the new kid on the block, Mildred Howard: Circulation Manager the quartz watch which will stop running with the tiniest amount Margie M. Brater: Circulation of soil in its gear box.

TECHNICAL EDITORS: The most common short order that is seen today is battery re­ placement. This procedure has a built-in safety factor in it since David G. Arnold Wes Door the watch was not running when it was brought to the watch­ William Biederman Henry B. Fried maker. The crystal only is relatively safe, provided the glass has James H. Broughton Orville R. Hagans not shattered. But when we get to that stem and crown only Fred S. Burckhardt Ewell D. Hartman job, watchmakers not only begin to stutter, they absolutely cringe Edgar "Nick" Cleves Robert A. Nelson in fear. Steven G. Conover Archie B. Perkins Joe Crooks Marshall F. Richmond Now, for all you newcomers to the trade-listen closely. The cus­ A WI OFFICERS: tomer brings in a quartz watch that is running and on time. It is missing the crown and closer examination shows the stem to William Biederman, CMW: President be broken. You explain to the customer the materials that are Robert F. Bishop: 1st V. President needed and fairly estimate the completed job. The customer Alice B. Carpenter, CMW, CEWS: 2nd V. President departs. You carefully wipe the case back and bezel as clean as Wes Door, CMW: Secretary possible. You either snap open the back or unscrew it. During Marvin E. Whitney, CMW, CMC, FAWI: Treasurer this operation, a tiny piece of soil drops into the movement. The watch stops. You fit the stem and crown. You blow out AWJ DIRECTORS: the movement but the watch doesn't run. You remove the train Jam es Adams, CMW bridge to find the obstruction, but that doesn't work either. James H. Broughton, CEWS You completely service the watch, including washing the case Fred S. Burckhardt and bracelet. Joe Crooks Henry B. Fried, CMW, CMC, FAWI The customer returns for the watch. You charge for a stem and a Gerald G. Jaeger, CMW, CEWS crown job. The customer leaves convinced that a fair and just Robert A. Nelson, CMW, CEWS transaction has just taken place. Howard L. Opp, CEWS Archie B. Perkins, CMW Will you take the time to let us know how you personally take Marshall F. Richmond, CMW care of a situation such as this?

David H. Fryday: Affiliate Chapter Director William T. Clary: Research and Education Council Director (REC) Fred S. Burckhardt: Past Pres,ident

Milton C. Stevens, FAWI: Executive Secretary On the Front Michael P. Danner: Administrative Director

This month's front cover was taken at Zion National Reprinting and reproduction is prohibited without per· mlsslo " :fro m tho American Watchmakers Institute. Copy­ Park, North Fork. Mr. Mark Krueger of Williamsville, rlgh·t © 1987 by the American Watchmakers Institute. NY is the photographer.

2 Horological Times/March 1987 ~ARSHALL-~WARTCHILD

CUCKOO CLOCKS All movements are assembled and supplied with chains and hooks only. Running Time: 24 hours Weights, Pendulums and Bellows are extra. Plate Dimensions: 1.2 x 75 x 75 mm Weights: 2 - each 4209. (approx. 7 /8 lb.) STRIKE MOVEMENT Pendulum length: 190 mm (from hand shaft to center of pendulum disc) WEIGHT DRIVEN Chains : 2 - each 1.80 mm long Wire Thickness: 0.9 mm (No. 19) C56926 $24.00 Running Time: 24 hours Running Time: 8 days Plate Dimensions: 1.0 x 62 x 69 mm Plate Dimensions: 1.2 x 90 x 85 mm Weights: 2 - each 270g. (approx. '12-lb.) Weights: 2 - each 1100g. (approx. 2Y, lbs.) Pendulum length: 160 mm (from hand Pendulum length: 160 mm (from hand shaft center to pendulum disc) shaft to center of pendulum disc) Chains: 2 - each 1.80 mm Chains: 2 - each 2.00 mm long Wire Thickness: 0.9 mm (No. 19) Wire Thickness: 1.05 mm (No. 12) C56925 $22.50 C56927 $29.95

VERSATILE CLOCK TOOL KIT BELLOW TOPS CARVED WOOD $3.95 a pair WILL DO ANY OR ALL OF THESE THINGS: PENDULUMS ~- (Without taking clock apart or removing wheels} Brown For bellows: 1. Cut a hole for a new bushing. Genuine Black Forest 2. Thread the hole it has cut. 6"...... C10/1 3. Cut a new face on shoulder of arbor (if same is worn I. 4 Re-cut r::uvot, (This is rarely necessary. because bushings supplied 4" & 5" . . C10/2 REGULAR are twice the thickness of dock plates, to extend over unworn part 3" & 3%" . C10/3 Overall length 9%" of pivot. ) 5. Witli the special wrench, screw into the newly cut and tl"lreaded 2" & 2'h" . C10/4 No. C54725 holes, new bushings, Two dozen bushings are supplied, precision cut Each $7.75 and finished with cone shaped E!!nd to retain oil Four hole sizes are included to fit 75% of clock pivots. SMALL 6. Permit you to shift the alignment of the ..-..heels so teeth and pinions Overall length 7" mesh ln a new unworn pt~ . No. C547251 Outfit consists of two double end. hollow center cunen. hollow Each $4.00 center threading tool, wrench. and handle. All in neat wood block with two dozen bushings. Bushing holes fit precisely the new pivots which the euners will make if they are needed. The new pivot is cut simultaneously with the same cutter that cuts the bushing hole. These BELLOWS tools fit a No. 30 lathe chuck, drill press or hand drill and, of course. the handle furn ished with the tool. (Sold in pairs only)

Never has a more completely useful tool bttn created for the clock· maker. Hele>s you do a praiseworthy job with fess effort and in fess time thus assuring you of more adequate compensation for yv ur efforts

No. C53045 CLOCK TOOL KIT CUCKOO HAND NUTS Complete with 24 Bushings . • • , • , • , , , ••• ••••• • S22.00 OPENING LENGTH PAIR EXTRA BUSHINGS 74-012-1 Side 2Y." $6 60 8J ~ Side 2¥." 6.60 nu~ uu-~ JhortJ n.,.,.. t..Mir threads so th•\ wl'1en t~ i nto a 1/16'' plate they will Assortment Side 3'1.." 6.60 be Uuth qn tM bOnom.. TlHt cxrna k>ngi...,. 11bout 5/ l6'' l n ktngth Md can be used Side 4•• 5.40 lft LOKIQ.1 ~ wt'ltttCll l'loieded. "fhre¥Xd lock w::t:;htA 31'W ah:o 1v•lobhJ to facilitate of 36 Side 5" 5.40 COflU'OI o f tho dtoth 1n Wf't1ch tho bwhln; ti to n1m.in rn 1M ~ate . Back s·· 6.50 Back 6" 6.50 One Ooten Minimum of a Siu Sold. ~ Side 6" 6.75 HOLE SIZE REGULAR SHORT LONG Bushings I LOCK WASHERS 1 /22" C53045A C53045AS C53045AL or Fits all bushings. - 3/64" C53045B C53045BS C53045B L Washe" Slotted so they can $6.75 1/16" C53045C C53045CS C53045CL Per Doz. be adjusted with 5/64" CS30450 C53045DS C53045DL S1 .85 doc.k tool Wf1lftei'I . C53045N QUAIL EXTRA CUTTERS AND WRENCHES LARGE CUTTER SMALL CUTTER COMBINATION TAP & WRENCH C53045E C53045F C53045G No.C54726 2" Each $3.75 Each $5.25 Each SS.25 Each $5.25

CHICAGO WE ACCEPT BOTH Nationwide 1-800-621-4767 CUCKOO BIRDS Illinois Call 1-800-972-3776 DALLAS Y/S4. Nationwide 1-800-527-6390 I l No. Description Each Texas Call 1-800-492-2151 EB C54730 Movable wings. .$4.30 ON ORDERS HOUSTON C54731 Non-movable wings . . 2.00 OVER $15.00 Texas Only 1-800-392-7795 A recent Marshall-Swartchild advertisement inadvertently listed a branch ARSHALLa.wARJCff I LO off i ~e in ;;eattle. Marshall-Swartchild no longer has a branch t here. Offices 11 ~ are 1n Chicago, Dallas and Houston. CHICAGO, IL 60647 : 2040 MILWAUKEE AVE. : 312-278-2300 •DALL.AS, TX 75201 ; 109 N. AKARD : 214-741-1454 HOUSTON, TX 77001 : 1212 MAIN ST.: 713-759-9009

March 1987/Horological Times 3 Book Review

THE CLOCK REPAIRER'S HANDBOOK, by Laurie Penman. correction required. For example on page 28 under the 716 pages, 300 line drawings, $19.95 in cloth. heading "Clock Type, Train or Part" you are directed to wind the clock and check the beat. If the clock goes you are told to This is a book that should be included in every clock repairer's go to #78 which states "All Done!" If the clock does not go, library. Mr. Penman has done a remarkable job of covering go to step #1. If it goes for a few minutes go to #3. If it goes a vast field in 176 pages. Much of this may be attributed to his for one hour go to #3. If it goes for several hours go to #1. ability to put practical shop practices into understandable If it goes irregularly go to #3. Incidentally, for those with words, plus some of the best line drawings are in his book. computers this diagnostic tool may be programmed with ease. The chapters are as follows: 1. Finding Clock Faults; 2. Mr. Penman has in many instances translated English Cleaning Clock Movements; 3. Bushing Clock Plates; 4. Piv­ terminology into U.S. English (e.g., paraffin is also termed oting and Mounting; 5. Anchor Escapements; 6. Dead-Beat kerosene). The listing of suppliers includes both British and Escapements; 7. Verge Escapements; 8. Train Faults and U.S. names and addresses. You will also find things that you Gears; 9. Suspensions and Crutches; 10. Strike and Chime may disagree with such as the recommendation that carbon Work; 11. Lubrication and Friction; 12. Weight and Spring tetrachloride be used to clean platform escapements in carriage Drive; and 13. Tools and Equipment; plus a glossary, list of clocks. In the U.S. it is practically outlawed because of its suppliers (British and American), books for further reading, carcenogenic proclivity. His reasoning is most interesting for and an index. his use of 3-in-1 oil as a clock lubricant. The first item above is an excellent example of what This book provides a much needed bridge over the we in the U.S. management field call a "decision tree". It gap that separates the very elemental beginners instruction in states to observe the first step if it is O.K. and go to #n. clock repair from the very specialized procedures for the If not O.K., do the following ... It is a check list for a step-by­ expert. On a scale from one to ten, I'd rate this book an eight. step diagnosis of possible faults that must be corrected for Otto Benesh proper operation and time-keeping of a clock, as well as the \!CID

WATCHMAKERS - JEWELERS How long would it take you to diagnose the following YOU DON'T NEED A SECOND OPINION ... watches using your present test equipment?

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GEM CITY COLLEGE With lnnovative's Quartz Watch Tester, model WT-100 700 Stale Street • Quincy, IL 62301 • • • • • Phone 217·222·0391 you could diagnose them all - in seconds - ' .. without removing any watch components.

I I e WATCHMAKERS-JEWELERS-CLOCKMAKERS e •I I • GENUINE: • .::;. Bulova - Longines - Omega - Seiko - Pulsar - Rolex .. WATCH MATERIALS & CRYSTALS I 0 -· ALSO CARRYING THE FULL LINE OF: ..:::::.. G.S. Crystals, L&R Cleaning Solutions, I Cleaning and Timing Machines, VIGOR BESTFIT and Quartz Watch Tester Model WT-100 HAMMEL RIGLANDER PRODUCTS Typical product features: I am small enough to try very hard to please you . • Tests watches with or without batteries • Tests batteries in or out of watches • Easy to use - no adjustments to make NEW YORK JEWELERS • Tests components without removal • One year warranty SUPPLY COMPANY • Made in the USA Watch Material, Jewelers Supplies & Accessories • Inexpensive - only $49.95 87 Nassau Street Room 208 (plus $2.00 postage & handling) New York, NY• 10038 (212) BA7-6677 INNOVATIVE ELECTRONICS 64-46 84th Street, Flushing, NY 11379 4 Horological Times/March 1987 J2 &'@<' , v 9- •QUARTZ movements •DIGl/ANA movements •DIGITAL modules 0 CALIBER COST CALIBER COST CALIBER COST Bulova 2500 • • • • • 19.95 Y491 • • • • • 29.52 Y770 • • . 23.18 YS40 • • • • • 6.20 Y510 • • • • . 16.12 Y771 • • • • • 19.18 YlOO • • • • • 14.20 Y512 . • • • • 24.08 Y772 . • • 16.46 YlOl • • • • • 13.50 Y513 • • • • . 26.52 Y780 . • • 8.00 Yl02 • • • . • 15.48 Y541 • • • • • 16.46 Y786 . • . • • 23.96 Yl06 • • • • • 15.06 YS51 • • • . . 37.36 Y789 • • • 10.34 Yl07 • • • • • 12.54 Y552 • . • • • 38.28 Y792 • • • • • 4.24 Yl08 • • • • • 14.00 Y558 • • • • • 29.24 Y799 • • • . • 4.68 Yl09 • • • • • 13.24 Y561 • • • • • l 1.94 Y800 • • • 7.98 Yll2 • • • • • 13.06 Y562 • • • • • 16.78 Y819 • • • • • 10.90 Yll3 • • • • • 13.66 Y563 • • • • • 12.02 Y960 • • • . • 25.64 Yl20 • • • • • 16.54 Y572 • . • • • 11.62 VOOl • . . • • 32.22 Yl31 • • • • • 10.72 Y573 • • • • • 16.20 V031 . • • • . 16.32 Yl42A • • • • • 11.76 YS80 • . • . • 10.98 Vl02 • • • • • 21.70 Yl42B • . • • • 11.26 Y590 • • • • • 11.95 V230 . • • 16.74 Yl43 • • • • • 12.66 Y591 • • • • • 13.06 V231 • • • . • 17.70 Yl47A • • • • • 10.34 Y642 • • • • • 16.44 V235 • • • • • l 1.95 Yl47B • • • • • 10.66 Y643 • • • • • 17.80 V236 • • • • • 12.95 Yl48 • . • • • l 1.52 Y651 • • • • • 24.78 V242 . • • 14.66 Y334 • • • • • 22.20 Y652 • • • • • 18.40 V250 • • • 11.26 Y405 • . • • • 32.42 Y653 • • • • • 21.40 V403 • • • • • 28.70 Y430 • • . • • 32.84 Y709 • • • • • 29.32 V405 • • • • • 24.48 Y434 • • • • • 19.95 Y723 • • • • • 14.10 W012 . • • • • 37.88 Y450 • • • • • 13.70 Y726 • • • • • 22.58 W029 . . . . . 33.32 Y456 • • • • • 13.16 Y729 • • • • • 22.42 W040 • • . l 1.98 Y468 • • • • • 34.88 Y739 • • • • ·• 44.58 W204 • • • • • 3.94 Y476 • • • • • 23.26 Y750 • • • • • 21.48 W207 • • • • • 9.66 Y480 • • • • • 9.95 Y756 • • • • • 21.42 W304 • • • • • 12.52 Y481 • • • • • 9.95 Y757 • • • . • l 1.70 W401 • . • . • 5.92 Y482 • • • • • 9.95 Y759 • • • • • 24.32 Y486 • • • • • 23.76 Y765 • • • • • 5.30 Prices subject to change. Pricing on other references available on reauest.

IN STOCK! MORE THAN 300 DIFFERENT CALIBERS OF WATCH MOVEMENTS! YOUR HEADQUARTERS FOR Watch Movements MARVELOUS QUANTITY CALIBER SIZE PRICE FE 6320 6%x8 6.95 QUARTZ WATCH FE 6820 5%x6% 8.70 MARCH y 480 6%x8 7.95 y 481 6%x8 7.95 y 482 6%x8 7.95 MOVEMENTS SALE! v 235 5%x6% 9.95 V236 5%x6% 9.95 • SPECIALISTS • Y588 5%x6% 9.95 FONT 69 (MECH.) 6%x8 9.95 ESA 927.002 5%x6% 10.95 Call For Our MIYOTA 2030/2035 6%x8 10.95 RONDA 3572 5%x6% 12.95 Quartz Watch Movement ESA 978.003 5X.x6% 13.50 Reference & Price Catalogue ESA 202.001 3%x8 17.95 *Limited Time Offer. Y434 3%x7 19.95 Prices Subject to Change. ESA 280.001 3%x6% 24.00 800-292-5522 V220 3x6% 25.00 IN CALIFORNIA CALL (800) 331-5522

Repairs quanz analog and digital circuitry as well as any other line wire circuits with a minimum of time and effort. Eliminates long drying lime. Af­ ter one minute your item is repaired and ready for use. Kit Includes: • 1 Bottle ol Circuit Maker' Worldwide Importers and Distributors -Net Wt • .05 Fl. Oz. (1 4 ml) • 1 Applicator • 1 Instruction Sheet 17925 E. SKY PARK CIRCLE One bottle of Vigor''' Circuit Maker,' if used cor- IRVINE, CA 92714 U.S.A. V 'IGOR"' =r~~onta$s jismaterial tor numerous INFORMATION (714) 250-1299 CIRCUIT MAKER' TELEX 678285 UD •FAX (714) 250-7169 A MUST FOR EVERY WATCHMAKER

March 7987/Horo/ogical Times 5 Henry B. Fried, CMW, CMC, FAWI, FBHI, * FNAWCC

An Enqlish Movement Bq F. Elliott

I'm sending a photograph of h clocks who writes on these and pub­ clock that I would like to know lished a book on their repair. Q more about. The name on the dial says: THEODORE B. STARR I have taken in a watch for an 206 Fifth Ave. appraisal. I looked it up in New York Q "American Pocket Watches Can you tell me anything about Mr. Complete Guide", by Cooksey Shugart Starr? and Tom Engle. According to the pic­ Whose movement might be used ture in the book and the watch, this is in this clock? It is a fusee (chain) eight­ the description they had given: English, bell Westminster chime and strikes Coper, 48 mm, bar detached lever move­ the number on the hour on a wire strike ment, key-wind and set, parachute at (gong) with hammer. Other identifying end stone, 18 kt. open face, serial number marks are on the strike: 6631. Also, according to the book, these were the prices: Avg.: $385.00, Ex-Fn.: $450.00, and Mint $600.00. If you could help me with any information on this watch, I would appreciate it. Strike Carl Goldberg Gong Theodore B. Starr was a most San Diego, CA reputable retail jeweler who later A went into partnership with Mr. Black to become Black & Starr, moving up to Fifth Avenue and 48th Street. Still later they were bought out by the This watch has a Swiss move­ On the door hinge is a patent lock joint. Gorham silver people and occupied the ment, most likely made in There are no identifying marks on the A leLocle, Switzerland about same corner building to become Black movement. Starr & Gorham. They were among the 1850. The case also is Swiss. These were What might you be able to finest jewelers in that city at that time made in great quantities and are not tell me about a Herschede grandfather's competing successfully with Tiffany, etc. considered overly rare. My observations clock that has a plate on the door (inside The movement is probably do not reveal a "parachute" arrangement the door) - Mexican-Pacific or Northwest English and made by F. Elliott who also at the endstone, merely a regular cap (Pacific exposition, 1915, 1st prize)? made tubular chime clocks and was and jewel. The parachute arrangement would this be the only one of the manu­ among the earliest makers of these clocks, is easily seen with a spring, somewhat facture or would it be reproduced in exporting most to America. like the earlier imitations by this cen­ number? My brother-in-law is in posses­ As for the Herschede tall case tury's Benrus models. sion of this clock. It also needs repair. chime clock, it probably was the first of I cannot estimate the value Can you name anyone near Morristown, that model (and certainly not the last) of the watch, as this institute has a strict New Jersey capable of repairing this made by the late Herschede Clock Com­ policy against rendering appraisal services. unit? It is a tubular strike clock. pany. As for repair, I might suggest that Henry B. Fried Thank you in advance. you contact Mr. Steven G. Conover, George W. Kelly 180 Elizabeth Avenue, lselin, New Jersey Waterford, CT 08830, certainly an expert on these

6 Horological Times/March 1987 .Hnrel Attention Watchmakers .Hnrel The New Seiko Service Kit New puts the tools you need ® right where you want them. Quartz BERGEON Watch No.6606 Hand s39 Assortment

o---­MINUTE HAND 0 HOUR HAND

SWEEP SECOND HAND

Includes hour, minute and second hands for most of the popular quartz watch movement used today. Hands are the new lightweight, thin stick style, and second hands are the counter-balanced type. Just for Quartz watches! Special Purchase Such as ESA 961.0001 , 102.001 , 588.001 y 481 , y 590, $179 value for only $79. Ronda 672, 3572, and FE 6820. The STK-25plus is a complete set of tools for battery replace­ Assortment contains 3 pair gilt, and 3 pair silver hour and minute ment, watch band adjusting, case opening and closing , and hands of 8 different sizes. Al so second hands, 3 pieces each gilt & even crystal fitting. This kit is regularly sold for up to $179. silver of seven sizes. Total of 138 pieces. Lengths suitable for 5V2 If all the tools & parts in the kit were RUrchased seRaratel'l.J!. to 12112 calibers. would cost $203. Because of our special purchase we are Hour hand holes sizes: .90, 1.00, 1.10, 1.20, 1.30, 1.40, 1.50mm. asking only $79, and passing the savings of over $100 to Minute hand holes: .45, .55, .60, .65, .70, .80, 90mm. you . It's unlikely you'll ever again see such a savings on a Second hand hole sizes: .17, .18, .19, .20, .22, .25mm. selection of quality & necessary tools used every day. Order yours today, while supply lasts! Order Bergeon-Borel # 6606 asst. for $39. Kit Includes: • One S-220 Case tightening & Crystal Press. • Set of 15 metal dies used in pressing on case backs Borel or fitting crystals. •One DM-1 watch band cutter for men's and ladies mesh bracelets. Thin • One S-194 case opener for screw-type, WP type cases. • One S-21 OD case holder with 12 sliding reversible 0-Ring case clamps. • One S-822 wrench for opening and closing battery hatches. Asst. • One S-280 case opener for snap-back type cases. • One non-magnetic plastic tweezers for handling s199s batteries. • One mini-screwdriver for watch band link Sizes included in assortment: adjustments. • Two-drawer storage cabinet. 40-1700 35-2000 40-2300 50-2600 40-3000 35-1800 35-2100 35-2400 40-2700 50-3200 Not Shown: 40-1900 50-2200 35-2500 • Assortment of 50 battery hatch gaskets. 40-2800 60-3400 •Seiko battery replacement guide. 64/3 New Borel Thin 0 -Ring Gasket Assortment, similar to Bergeon 6043F, but • Seiko spring bar chart. we give 3 pieces/size instead of just 2, a better deal for customers. 3 pieces each of 15 popular numbers, total 45 pieces. Individually packaged. Refills • Seiko battery chart. available. Kit #STK-25plus $79. 64/3 $19.95 NATIONAL TOLL·FREE ORDER SERVICE • 1 ·800/821-5686 In Missouri 1-800/892-5818 .llttrel Borel, 111 O Grand, Kansas City, MO 64106 .llttrel Distribution Centers in KANSAS CITY LOS ANGELES OAKLAND

March 1987/Horologica/ Times 7 Technically © 19s1 WATCHES Archie B. Perkins, CMW, FNAWCC, CMBHI (All rights reserved by the author)

Antique Watch Restoration ~ 1987 Part XV

he making and fitting of ratchet wheels is a common problem encountered when restoring antique watches. 7 Jn many cases ratchet wheels are found with worn or broken teeth. This is especially true when it comes to fusee Figure 1 ratchet wheels which are made of brass. These are more sub- ject to wear compared to other ratchet wheels made of steel. Before the actual making of a ratchet wheel, certain information is needed. First, if there is a sample wheel to copy, it should be examined to determine the shape of the teeth and whether they are undercut or not. Figure 1 shows three ratchet wheels with different A shaped teeth. View A shows a ratchet wheel with radially cut ratchet teeth. That is, the faces of the teeth are cut on center (not undercut). This is probably the most common type of ratchet tooth found. View B, Figure 1 shows a ratchet wheel with under­ cut teeth. The main reason for undercutting ratchet wheel teeth is so the click will have a more positive locking in the teeth of the wheel. There is less tendency for the click to accidentally come out of the teeth when they are undercut. The degree of undercut can vary from watch to watch. The undercut is usually five to ten degrees. 8 View C, Figure 1 shows a ratchet wheel with under­ cut teeth; also the slope on the teeth is curved. This shape of tooth is usually used on ratchet wheels in high grade watches, clocks, and chronometers. Figure 2 shows how the cutter is set for cutting a ratchet wheel where the teeth are cut on-center with the wheel blank. In the drawing, "a" equals the angle on the cutter, "b" equals the angle on the wheel tooth, and P equals the pitch of the teeth. The pitch equals 360 degrees divided by the number of teeth in the wheel. Suppose we need to make a ratchet wheel with 36 teeth, then the pitch is calculated: C

p = 360° = ~ = 100 N 36

8 Horological Times/March 1987 Figure 2 Figure 3

I 60 INDEX I I a = ANGL E ON CUTTER -i------b = ANGLE ON TOOTH 6ot- P = PITCH I a = b + P b = a - P 0 DEGREES PER TOOTH= 3 6 = 12° P=-¥ 30° DEGREES PER NOTCH(60 INDEX)= 3:g° = 6° FOR 6 DEGREES (INDEX I NOTCH)

If we select 50 degrees for the angle on the tooth, then we can calculate the angle for the cutter: Figure 4 Cutter angle= Angle on Tooth+ Pitch= 50° + 10° = 60°. On the other hand, if we know the angle on the cutter, we can calculate the angle on the tooth: Tooth angle =Cutter angle - Pitch= 60° - 10° = 50°. Also, if we know the pitch, we can calculate the number of teeth a ratchet wheel should have:

= 360° = 360° = 36 N Pitch 100 · Figure 3 shows a ratchet wheel with undercut teeth. b a In this case, the teeth are undercut 6 degrees. The wheel has 30 teeth. When cutting this wheel, we can use the INDEXING METHOD to obtain the desired 6 degree undercut on the teeth. This can be done by using an index plate which has the required number of notches so the lathe headstock can be indexed exactly 6 degrees. In this case, if we use a 60 notch index plate, each notch will equal 6 degrees because: 0 3~g = 6 degrees. We could also use a 120 index plate. In this case, each notch would equal 3 degrees because * = 3 degrees. Therefore, we would need to index two notches to obtain 6 degrees. The INDEXING METHOD of setting the cutter off­ I center for undercutting the teeth of a ratchet wheel is shown I ------~------in Figure 4. This same method can also be used when making ! escape wheels for watches, clocks, and chronometers. First, the cutter is centered up with a sharp male center held in the lathe headstock as is shown in View A, Figure 4. Then, the edge of the cutter is brought down lightly against the edge of then the cutter is moved off-center until its edge is lined up the wheel blank after the blank has been turned down to the with the mark made previously on the edge of the blank by proper diameter. Now, the edge of the cutter is moved across the cutter. This is shown at point "b", View B, Figure 4. the edge of the wheel blank so that a small mark is made on This sets the cutter for cutting the teeth on the blank. the edge of the blank by the cutter. See point "a", View B, Another method of setting the cutter off-center is Figure 4. Next, the headstock is indexed for the proper by the CALCULATION METHOD. This is shown in Figure 5. number of degrees, which is 6 degrees in this case. The in­ Distance D that the cutter is set off-center is found by using dexing must be done in the direction of the arrow that is the following formula: shown in View B, Figure 4. After the blank has been indexed, D =Tan of angle C x Radius of Wheel.

March 1987/Horological Times 9 For example, let us suppose that Angle C = 10 degrees and the R = RAD I US OF WHEEL radius of the wheel is 4.00 mm. Then we would have: P = PITCH D = DISTANCE CUTTER IS SET Figure 5 D = Tan 10° x 4.00 mm. OFF CENTER a = ANGLE ON CUTTER In looking up the tangent of 10 degrees in a trigonometric b = ANGLE ON TOOTH functions table, we find that the tangent of 10 degrees is c = ANGLE OF UNDERCUT ON TOOTH CUTTER ANGLE = b + P .17633. Therefore: D = .17633 x 4.00 mm= .70532 mm. TOOTH ANGLE = a - P After the cutter has first been centered, then the DISTANCE D = TAN OF ANGLE c x R crank of the slide rest lead screw is turned to move the cutter off-center the required amount: in this case, .70532 mm. The micrometer scale on the dial of the crank is used to determine this amount. Make sure all of the play in the lead screw is taken up before starting the reading of the micrometer dial. To verify the amount that the cutter was moved off-center, a Vernier caliper can be used to actually measure the distance between the center held in the headstock and the leading edge of the cutter. It must be kept in mind that a cutter of a given angle which cuts the correct shape of tooth that is cut on­ center will not cut the same shape of tooth when it is moved off-center to make an undercut tooth. In other words, when the cutter is moved off-center, the cutter will cut a shorter tooth. Therefore, to cut a tooth of the same length and shape, a cutter with less angle must be used. For example, if a 60 degree cutter is used to cut an on-center tooth, then if the cutter is moved off-center 10 degrees to undercut the tooth 10 degrees, we would need to use a 50 degree cutter to cut the same angle of tooth. Still another method that can be used to set the cutter off-center is shown in Figures 6 and 7. This PRAC­ TICAL METHOD not only works well on ratchet wheels with undercut teeth, but it can also be used on clock and chro­ nometer escape wheels which have undercut teeth. In this method, a straight edge is used over a good tooth on the sample wheel as is shown in Figure 6, View A. The straight edge is lined up exactly with the undercut edge of the tooth. Then, a fine pointed scriber is used to scribe a line on the wheel along the edge of the straight edge that is lined up with the undercut edge of the tooth. Now, use a small metric or inch ruler to measure from the center of the hole in the wheel to the scribed line as is shown in View B, Figure 6. A Vernier caliper can also be used to obtain this measurement. The measurement should be taken across the center of the wheel at right angles to a vertical center line. Figure 7 shows how the cutter is set off-center. A ruler or Vernier caliper is used to measure the distance the cutter is set off-center as is shown. The measurement is taken from the point of a male center held in the headstock of the lathe to the leading edge of the cutter.

Making Ratchet Wheels will continue next month.

10 Horological Times/March 1987 We Salute These New Members!

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March 1987/Horological Times 11 SHOPTALK

Wes Door, CMW

MODULE RETROFITTING PART I

fitting of a new module or movement in to our ting is our answer. Case in point: I have a customer who likes stomer's watch case is called "retrofitting," and it his old worn-out LCD watch so much that he is willing to 1s becoming increasingly more popular. The work spend just about any amount of money to replace anything necessary to accomplish this task may include such things as needed, except the case. At some point in time he'll need a dial refinishing or fitting new dial feet to the customer's dial, new watch and I'm sure we'll sell him one, just as soon as changing the crown and maybe the stem, or filling in the case there is no more hope for his old watch. to adapt to a customer's case, etc. We'll discuss some of the reasons for retrofitting. 2. Quartz is More Accurate-And No Winding. Our customer may want a new module because it is more I. Rusty Watch. accurate and needs no winding. However, we've found that As with conventional watches, quartz watch modules are af­ many customers would bring in a quartz watch to repair and fected by rust. If there is a small amount of "soft" rust in the cannot understand why it stopped, as they have been winding mechanical areas which is setting parts and/or the train, it may it every day. Don't laugh-it happens. We must explain that be removed by our usual means of cleaning by brushing off the crown is used to set their watch, not to wind it. and cleaning with our bench solution. Or we could use special rust removal solutions or wire brushes (on steel setting parts), 3. We Do Not Know What's Wrong. followed by ultrasonic cleaning. We should not give up at the Our lack of knowledge is a poor reason for retrofitting, but un­ first sign of rust. But if the rust cannot be removed we should fortunately it is used. If we do not have the necessary equip­ replace the rusted parts with new ones. Of course, if unre­ ment, we should acquire it. I may need to slightly qualify movable rust is spread over the complete movement (especially what I have just said: Since there are a few brands with low if this includes the circuit board) then it may become neces­ quality movements and our past experience has shown that sary to replace the complete movement. NOTE: We use the these movements do not stay out very long without repairs, term "rust removal," but this really means cutting the rust or we may want to tactfully suggest a better replacement module. cleaning out the rusty areas and preventing existing rust from I prefer not to mention brand names, but experience has spreading, thereby preventing future oxidation. shown that in many (not all) of the nonjeweled first modules, Sometimes we may need to replace too much of the this is true. The newer jeweled movements seem to work bet­ watch module; in these cases it may be less costly to just re­ ter. This is not to say that there are not good nonjeweled place the complete module rather than all of the parts neces­ quartz movements. sary to completely remove the rust. This is where we must The ones that give the most trouble seem to be work close with our customer and not preclude that they de­ those which are affected the most by the least amount of ob­ sire to change the complete movement when they may just struction in the train and the lack of oil or the improper want their movement repaired, regardless of cost. However, amount of oil. Also, some seem to be more affected by our most of the time, customers will be practical and allow us to customer's perfumes, etc. than others. Some also prefer to carry out our recommended suggestion of a new movement or exchange-"retrofit" -any time the watch just needs cleaning, module. This is where our retrofitting comes in, as long as since the new movement may be less costly than the price of we have established the fact that our customer will not consider cleaning. buying a new watch. All of the above must be considered and a good Some watches are actually in a good karat gold case ethical approach must always be used in fairness to our cus­ and some with diamonds in the case-maybe in the band, also. tomers, and to ourselves. These certainly warrant the consideration of a new movement. NEXT MONTH: a conclusion on this subject, includ­ But what about the majority of watches we see which have ing information on dial feet, a soldering machine for dial feet, "cheapy" cases and our customer doesn't want to purchase a and other retrofitting tips. new watch? Here again, retrofitting is the answer. Many of these low quality cases are so full of sentiment that retrofit-

12 Horological Times/March 1987 • Our Readers Write IT"S

I know that the Horological Times tries very hard to keep the quality of information given to our members as NEW! high as possible and encourage fine craftsmanship. It is with this knowledge that I write to protest "Getting Hooked on a Barrel" which was published in the January 1987 issue of Horological Times on page 29. This procedure is #1, mutilating - it rudely destroys the outward appearance of the barrel; #2, unsafe - if the slot in the screw ends up parallel to the arbor it provides a score line along which the hook will fracture when main­ spring pressure is applied; and #3, unworkable in a high per­ centage of clock movements. In most modern German products there is insufficient clearance between either wheels or arbors to allow any protrusion beyond the barrel to clear during running. It takes me only 10 minutes to turn-up a proper rivet for a barrel and install it properly, by riveting, with no protrusion outside the barrel, maintaining the original appear­ ance, so why do anything like this? David G. Arnold Fayetteville, PA NEW•• NEW•• NEW• •NEW

LA SONIC HOME JEWELRY CLEAN ER My membership since 1970 indicates my high A new product from Connoisseurs! regard for the fine quality of and the great information in the Horological Times. This cleaner's high-tech European William D. Lutz design, quality, and price is a Newtown, PA breakthrough in jewelry cleaning. La Sonic has a high and low speed to handle from stubborn dirt on chains and watchband.s to delicate, lightly soiled jewelry. La Sonic comes complete with its own tray, brush, cleaning concentrate and smoked plastic dust cover. The suggested resale on this item is Jewelry $19.95. Our very special price to Technologies you is $12.95. CL-1852 ...... $12.95 Paris Junior College Jewelry-Gemology-Horology For More Information: Paris Junior College, 2400 Clarksville Street, Paris, Texas 75460 S.(~lnc. Texas Toll Free: 1-800-441-1398 Worldwide Distributors to Horologists Outside Texas Toll Free: 1-800-232-5804 ' ~,It////' Equal Opportunity/Equal Access Institution 234 Commerce Place, Greensboro, N.C. 27420 USA Phone: (919) 275-0462

March 1987/Horological Times 13 CLOCKS 11'1~uie &Out!

Timothy R. White, CMC

A Practical Guide to the Recoil Escapemen.t Part 2

EVER ARMS AND RECOIL the effective lever arms acting on the pallets. Some of the Knowledge of the drop adjustments is sufficient for pendulum's energy is lost during recoil due to friction. In the repair of most recoil escapements. However, general, the larger the angle of incidence, the stiffer the there are a number of subtle problems with this escapement recoil and the larger the power loss during the recoil due that cannot be resolved simply by adjusting the drops. In to friction.2 This simple recoil action is actually the most order to make further adjustments intelligently, a deeper complicated, involved and troublesome aspect of the recoil understanding of the operation of the recoil escapement is escapement. required. In order to fully understand the specific problems The next two things to be examined are the mech­ introduced by recoil into an escapement, some of the general anism by which the impulse is delivered to the pendulum and principles of escapements and pendulums must first be dis­ the effects of the recoil action following that impulse. The cussed. To begin with, it must be pointed out that a pendulum torque of the escape wheel is converted to an impulse to the driven by a recoil escapement is a "controlled" as opposed to pendulum through the effective lever arms of the escape wheel a "free" pendulum) A "free" pendulum is one that is simply and pallets. The recoil results from the extra impulse given kept in motion and its oscillations counted by the escapement to the pendulum over and above that which is needed to allow without that escapement interfering with the natural rhythm the escapement to operate continuously. The amount of recoil of the pendulum. A "controlled" pendulum, on the other is largely determined by the angle of incidence between the hand, is one that is not only kept in motion and its oscillations pallets and the escape wheel teeth. Once these individual counted by the escapement, but is one in which the escape­ factors have been fully defined and their operation explained, ment maintains a nearly constant control over the motion of then the rather complex relationship between the impulse and the pendulum. When an escapement is used that controls a recoil can be understood. pendulum over a large portion of its arc, then significant There are four effective lever arms involved in the escapement errors, over and above those found in all pendu­ recoil escapement. These are illustrated in Figures Sa and Sb. lums (circular errors, temperature compensation errors, etc.) Each pallet has a lever arm against which force is applied and are introduced. The most significant escapement errors in­ an escape wheel lever arm applying that force. The lever arms troduced to the pendulum by a recoil escapement are caused operate in pairs, one escape wheel lever arm (1) and one pallet by the recoil. lever arm (L), delivering an impulse of the entry pallet while Escapement errors are the changes in rate resulting the other escape wheel lever arm (1') and pallet lever arm (L') from interference with the natural arc of the pendulum delivers an impulse of the exit pallet. The amount of torque caused by the impulses to the pendulum from the escapement. on each pallet is equal to the ratio of the escape wheel lever Escapement errors result from impulses, either positive or arm to the pallet lever arm multiplied by the force (F). The negative, occurring at any point away from the plumb position torque applied to the entry pallet is then equal to l/L x F and of the pendulum. If it occurs as the pendulum approaches the torque applied to the exit pallet is equal to l'/L' x F.l The recoil action of the recoil escapement operates lsmith, William 0., "Advanced Horology for the Young Watchmaker". in the following manner. From the moment of drop to end Horological Times , AWI Press: Cincinnati, Ohio. January, of the recoil action, the energy of the pendulum is being 1977. Pp. 234. 2Aydlett, Guy D., "The Square Recoil Escapement". Bulletin, NAWCC, absorbed back into the going train by causing it to reverse Inc.: Columbia, PA. April, 1975. Pp. 161-176. its direction, rewinding the mainspring. Following the full 3Lord Grimthorp (Edmund Beckett), A Treatise on Qocks, Watches recoil, this energy is returned back to the pendulum through and Bells. EP Publishing: Yorkshire, England. 1975. Pg. 77.

14 Horological Times/March 1987 Figure 5a. Pallet lever arms. Figure 5b. Escape wheel lever arms.

Exit Pallet Force Lever Arm (F) (L')

L ' Escape Wheel Lever Arm (I) 1W 10-65 ~ 10-85 the plumb position a positive impulse will cause a gaining rate second factor that influences the strength and duration of the while a negative impulse will cause a losing rate. If it occurs recoil is the amount of power applied to the escapement. after the pendulum has passed the plumb position a positive As the power increases, the recoil increases causing a larger impulse will cause a losing rate while a negative impulse will escapement error resulting in a larger gaining rate. As the cause a gaining rate.4 An example would be a clock with an es­ power decreases, the recoil decreases causing a smaller escape­ capement that delivers only a positive impulse before the plumb ment error resulting in a smaller gaining rate. For this reason, position of the pendulum will introduce an escapement error spring driven clocks with recoil escapements will show, to that causes the pendulum to operate at a faster rate than it some degree, a gaining rate when fully wound and a losing would if it was not being interfered with by the escapement. rate when wound down, all due to changes in the amount The impulses of a recoil escapement can be gen­ of recoil. The only way to eliminate this problem in recoil eralized as follows. On each semi-arc of the pendulum the escapements is to insure that steady power is supplied to escapement delivers two impulses, one positive and one the escapement over the entire run of the clock by powering negative. The positive impulse occurs, for the most part, the clock with weights or by compensating the power curve before the plumb line is reached. The negative impulse (the of the mainspring with a fusee. If no compensation is made, recoil) occurs entirely after the escapement has passed the and variations in power are permitted, then there will be plumb line. As a result, recoil escapements all have escape­ some isochronal error associated with any recoil escapement. ment errors that cause a gaining rate. It follows then that as Further errors are introduced to the pendulum when the recoil increases, the escapement error increases causing the amount of recoil on both pallets is not equal. Some an increase in the rate of the pendulum. As the recoil de­ inequality of recoils is an inherent problem in most recoil creases, the escapement error decreases and the rate of the escapement designs. This problem becomes more pronounced pendulum decreases. As a result, the strength and duration when the pallets are flat and/or the escape wheel tooth count of the recoil plays a critical role in determining the rate of gets smaller.2 For example, on an escapement with flat pallets the pendulum. and a tooth count of 30 teeth it will be observed that the angle There are two factors that determine the strength of incidence at full recoil on the entry pallet is larger than and duration of the recoil. The first factor is the angle of in­ the angle of incidence at full recoil on the exit pallet. This cidence on each pallet. Even though the angles of incidence causes the escapement to have a greater entry recoil and a are established when the clock is constructed, it is important lesser exit recoil resulting in a larger overswing of the pendu­ to understand how they affect the rate of the clock. As the lum on the exit pallet than on the entry pallet. When the clock angles of incidence, and therefore the recoils are increased, is put in beat, the impulses will be delivered on semi-arcs then the gaining rate caused by the escapement error is in­ of the pendulum that are not complimentary with respect creased. As the angles of incidence are decreased, then the to the center of oscillation.2 The effect is such that the length gaining rate caused by the escapement is decreased. This of the impulse will be different on each pallet. Furthermore, escapement error will remain constant as long as the power the duration of the impulses (on spring wound clocks) will applied to the escapement remains constant. However, the constantly vary with changes in power. This lack of isochro­ nism will affect the performance of any pendulum. In order for a pendulum driven by a recoil escape­ ment to be isochronous, several conditions must be met. 4Rawlings, A.L., The Science of Clocks and Watches. Pitman Publishing The drops (and locks) must be equal to insure impulses of Corporation: New York, NY. 1948. Pp. 128-130.

March 1987/Horological Times 15 equal duration. The ratios of the effective lever arms of both termining and correcting both the lever arm ratios and recoils pallets must be identical so that equal impulses are applied will follow. Several things must be kept in mind while making on both semi-arcs of the pendulum. The recoils must be equal these adjustments. The amount of effort applied toward to insure that the impulses are delivered over the same portion equalizing both the lever arm ratios and the recoils should be of each semi-arc or the pendulum. In a well designed recoil proportional to the overall quality of the movement. Finally, escapement all of these conditions can easily be met. However, the most important practical concern is that if it is not pos­ it must be pointed out that many recoil escapements are not sible to make the lever arm ratios and the recoils equal, then well designed. For this reason, adjusting these recoil escape­ make the best adjustments possible with the least alteration ments requires a complete and thorough knowledge not only of the existing parts. of the operation of the lever arms and recoils but also of the If the effective lever arm ratios or the recoils of an various techniques used to adjust them. escapement are suspected of being incorrect, or if the clock is being fitted with a new verge, then the following procedure ADJUSTING LEVER ARM RATIOS AND RECOILS can be used to measure the effective lever arm ratios for both A number of different factors must be examined in order to pallets. It will also determine the angle of incidence on each reach a complete understanding of the adjustment of the lever pallet which has a direct relationship to the amount of recoil arms and recoils. These include the reasons why some escape­ on each pallet. ments may appear to need adjustment while others do not, how the actual adjustments are made, and whether or not MEASURING LEVER ARMS one adjustment should be favored at the expense of the other. AND ANGLES OF INCIDENCE All of this must be considered before any adjustments are I. Remove the verge from the clock and fasten it to a stiff made to the lever arms or the recoils. piece of paper. When an escapement is correctly designed and con­ A. Verges with arbors can be fastened down by pushing structed to begin with, as most of the English and French the arbor through the paper. This must be done recoil escapements are , then the lever arm ratios and the carefully as the center of the hole must later be recoils will be correct and will not need to be adjusted (except located as the verge pivot center. in cases of severe wear or abuse). However , most American B. Verges from outside escapements can be fastened recoil escapements are not technically correct in their original down to the paper with a pin that fits snuggly in design and construction and often need adjustments to correct the saddle holes. The pin hole on the paper locates them. Unfortunately, these escapements frequently cannot be the verge pivot center. brought to the ideal state, with the lever arm ratios and re­ II. Trace the acting faces of both pallets and the exact coils equal. As a result, in the course of practical repair work, position of the pallet tips onto the paper as accurately as escapements will be encountered in which certain compro­ possible using a sharp pencil. Tracing the remainder of mises must be made between the equality of the lever arm the verge is not necessary. ratios and the recoils. These compromises can only be made . III. Using dividers, determine the exact center distance on the basis of a complete and thorough knowledge of the between the verge and escape wheel. Strike an arc at interaction between the lever arms and recoils. An explanation this distance on the paper above the outline of the of the operating principles of the lever arms and recoils has pallets with the compass point at the verge pivot point. already been given. A discussion of the procedure for de- IV . With the compass set as in Step III, strike two small

Figure 12. Pallet and Figure 13. escape wheel lever arms. Angles of incidence.

16 Horological Times/March 7987 arcs from the let-off edge of each pallet above the arc locating the center distance. Draw a line from the point where these two arcs intersect through the verge pivot point. This establishes the centerline of the escapement. The point where the centerline intersects the center distance arc establishes the location of the escape wheel pivot point. V. Measure the diameter of the escape wheel and draw a circle representing the perimeter of the escape wheel with its center at the escape wheel pivot point. VI. Draw a line representing the force applied. A. For straight pallets, extend the line of each pallet face and draw a line perpendicular to it from the point where it cuts the circle of the escape wheel. B. For curved pallets, the line of force is perpendicular to a line tangent to the curve of the pallet where it cuts the circle of the escape wheel. VII. The effective lever arms can now be determined. A. The effective lever arm for each pallet is the radial line from the verge pivot point perpendicular to the line of force on each pallet (Figure 12). B. The effective lever arms for the escape wheel are the radial lines drawn from the escape wheel center perpendicular to the lines of force on each pallet (Figure 12). VIII. The angles of incidence are established by drawing lines Figure 14. 30-hour Waterbury O.G. movement. from the escape wheel center to the point where the escape wheel cuts the pallet. The angle of incidence lever arm ratio is correct. In these cases it is suggested that is the smallest angle between this line and the line of the most correct adjustments (in the practical sense) are those the pallet (Figure 13). that alter the verge the least while bringing about the most amount of correction. Again if the escapement was designed correctly in the first place, then these adjustments will be The rule of thumb regarding the effective lever arm sufficient. There are, unfortunately, many exceptions. The ratios is that the ratio of the lever arms on the entry pallet exceptions will be more fully explored in the section on re­ (1/L) must be equal to the ratio of the lever arms on the exit placement verges. pallet (l' /L') .1 The ideal method for correcting the lever arm Once the lever arm ratios have been equalized, the ratios would be to return the verge and pallets to their original recoils should then be checked for equality (make a new shape and dimensions. The ideal method works when the drawing if significant adjustments have been made to the escapement is correct to begin with and has not been tampered lever arms). The recoils can be checked in either of two ways. with. A different approach is required when the verge has not The first method is to check the angles of incidence on both been obviously distorted or ground away. In these cases it pallets. If the angles of incidence are equal, the recoils will becomes necessary to first draw the escapement as outlined be equal (for practical application). The second method is in the procedure and examine the relationship between the to install the verge in the clock and observe the actual amount lever arms. Next, decide which of the two lever arm ratios of recoil on each pallet. This second method is not as accurate is correct and shape the other pallet so that its lever arm ratio as the first, and should not be used as the basis for adjustment, matches the first. Sometimes it is difficult to decide which but it does provide a quick, practical check of the recoils. (Please turn to page 3 7)

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March 1987/Horological Times 17 Elapsed Ti111e Cloeks PART VI

Marvin E. Whitney, CMW, CMC, FAWI

All illustrations courtesy U.S. Air Force

REASSEMBLY

LUBRICATION pecific instructions regarding lubrication of all im­ portant points wi ll be noted during the reassembly instructions. Any good watch oil may be used to S lubricate the elapsed time clock. However, a suit­ able light grease can be used on high pressure bearing such as the stem works and column wheel, but should be applied sparingly. Since these clocks were subjected to a wide range of temperatures, Army-Navy specifications required that all parts requiring lubrication be lubricated with Elgin's M-56b oil. This oil had excellent viscous properties and had an excellent performance record at both high and low temperatures (+120°F to -20°F), with a solidification temperature of -50°F. NOTE: Throughout this section, instructions will be given regarding the reassembling of several subassemblies Figure 1. Installing the windling click. which may have been left intact or disassembled, depending upon the repairer's analysis and decision during disassembling. These instructional steps are marked with an asterisk (*).

PILLAR PLATE AND WINDING CLICK (see Figure 1) 1. Reassembly begins on the dial side of the pillar plate by installing the lower balance cap jewel. 2. Turn the plate over to the train side and place the winding click (c) and spacer (d) over the left upper pillar. At­ c tach the flat winding click spring (e) to the two steady pins on the upper center of the plate and fasten it down with the click spring screw (f). Apply a small amount of oil to the pivot sur­ face of the click and the surfaces where the click moves against the spring.

WINDING WHEELS AND CLUTCH (see Figure 2) d 1. Oil the ratchet and second winding wheel seats. Figure 2. Winding gears and clutch installed. Then place the second winding wheel in position over the winding clutch arbor hole in the plate, and place the two wind­ TRAIN WHEELS, MAINSPRING BARRELS, ing ratchet wheels (a) in position over the two mainspring AND CHRONOGRAPH PLUNGER (see Figure 3) barrels' arbor holes, meshing both ratchet wheels with the 1. Insert the center wheel (a) and intermediate wheel winding wheel. (b) in their respective pivot holes in the plate. 2. Next, place the first winding wheel (b) over the 2. Using a mainspring winder, insert the two main­ second winding wheel; oil and insert the pivot of the winding springs and position the barrel arbors in their respective bar­ clutch arbor (c) through both, then oil and install the winding rels. Lubricate the mainsprings, then replace the barrel caps clutch (d) and spiral compression spring (e) on the arbor. and oil the bearing.

18 Horological Times/March 1987 a

r

/ .,,,,.- __\ ~ Figure 3 Train wheels, mainspring barrels, and chronograph Figure;' 4. Attaching the top plate to the piller plate. plunger installed.

". ' 'p (.. 5' It

Figure 6a . Figure 5 . Minute wheel, setting wheels, and dial train bridge installed. Figure 6. Installing the C.D. setting bridge.

3. Install the fourth wheel (d) and third wheel (e) on the upper center wheel post and check to see if the tension in their respective jewel holes. However, before replacing the is sufficient. If not, correct and then remove. Since the car1non fourth wheel, check the long pivot that carries the center pinion carries the elapsed time drive wheel, which rides above seconds drive wheel (or the wheel over the fourth wheel, the minute wheel, the cannon pinion cannot be positioned as it is often referred to) to see if it is straight. To straighten, before the minute wheel is installed as usually done on a watch. use a pair of brass-lined pliers or tweezers or drill a small hole 2. Insert the pivot of the winding arbor (d) in the in a piece of brass stock to take the pivot. Then carefully winding arbor hole in the dial side of the top plate and place bend or leverage the pivot until it is straight. the dial train bridge (e) over the arbor and lower it into posi­ 4. Now insert the chronograph control plunger (f) tion on the pillar plate. Oil the dial train bridge pivot holes. in its plate hole and place the spiral compression spring (g) over the plunger. ELAPSED TIME DRIVE WHEEL, CIVIL DATE DISENGAGING ARBOR AND LEVER, TOP PLATE (see Figure 4) AND CIVIL DATE SETTING BRIDGE (see Figure 6) Place the dial side of the top plate over the pillar , 1. Secure the dial train bridge to the pillar plate with plate and slowly lower it into position, carefully inserting the the three bridge screws (a) . train side staffs and arbors into their respective pivot holes in 2. Press the E.T. drive wheel and cannon pinion (b) the top plate. Be sure that all the pivots are in their respective on the oiled center wheel post. Since the minute wheel has jewel holes and that the wheels and pinions are correctly been installed, be certain that the teeth of the cannon pinion meshed. Secure the top plate to the pillars with the four pil­ are aligned to mesh with the minute wheel teeth so as not to lar screws (a). Check the train wheels for freeness, and correct burr or nick the minute wheel teeth. side and end shake. Apply a small amount of oil to all pivots 3. At this point, install the E.T. control cone, sleeve and arbors in the pillar and top plates. washer, push button spring, and sleeve on the winding arbor. Temporarily attach the winding knob (Figure 6a) and check MINUTE WHEEL, SETTING WHEELS, AND the operation of the winding and setting mechanisms. The DIAL TRAIN BRIDGE (see Figure 5) knob and push button will later be used at various times 1. Turn the movement over to the dial side and during reassembly for setting and checking the other controlled apply a small amount of oil to the minute and setting wheel mechanisms. studs and the upper center wheel post. However, before in­ 4. Insert the C.D. disengaging arbor (c) in the arbor stalling the minute wheel, the cannon pinion should be pressed hole in the dial side of the top plate. Install the C.D. disengag-

March 1981/Horologica/ Times 19 ing lever (d) over the fulcrum screw (e) and the flat disengaging wheel spring pawl (e) on the steady pins and fasten it down lever spring (f) over the steady pins on the plate, then fasten with the pawl screw (f). Oil or place a small amount of grease down the spring with the spring screw (g). Oil the fulcrum on the column wheel posts and the pawl. screw and spring. 5. Turn the movement back to the dial side and CHRONOGRAPH INDEXING PAWL LEVER AND place the C.D. setting bridge (h) over the disengaging arbor CENTER SECOND STABILIZER SPRING (see Figure 8) (Figure 6), lower it into position, and secure to the plate with CAUTION: During the assembly of the chronograph, elapsed the bridge screw. Oil the pivot holes. time and civil date mechanisms, test all parts for freeness be­ 6. Turn the movement on its side, place the C.D. fore tightening their respective retaining screws. Do not exert disengaging arm support (i) in position on the dial side of the undue strain on any springs or spring pawls, as they are easily top plate and secure it with the support screw from the train broken. side. 1. *Reassemble the chronograph indexing pawl lever by fastening the pawl (a) (Figure 8) to the lever (b) with the pawl screw and attaching the spiral extension pawl spring (c). Place the lever in position on the plate, oil the fulcrum, and hold down the screw slot. Then secure the lever with the left­ d handed fulcrum screw (d), holding down screw (e). Oil the • •0 control plunger . 2. Install the chronograph indexing pawl keeper (f) on the steady pin and fasten it down with the keeper screw. Oil the pawl and keeper. 3. Before placing the C.S. stabilizer spring (g) in position on the plate and securing it with the spring screw (i), check the tip for burrs and see that it is polished. Screw (h) is the adjusting screw. Oil the tip of the spring lightly. 4. Oil the fulcrum and hold-down screws and attach the free end of the spiral pawl spring to the anchor screw on the plate (see Figure 8).

MINUTE REGISTER IDLER LEVER AND CENTER SECOND WHEEL (see Figure 9) 1. *Reassemble the M.R. idler lever (a) by attaching the wheel to the lever with the wheel screw. Make sure the wheel rotates freely and then place the lever in position on Figure 7. Winding arbor detent spring and chronograph the pivot post on the plate. column wheel installed. NOTE: Do not oil the M.R. idler wheel. 2. Install the flat M.R. idler lever spring (b) on the steady pins and fasten it down with the spring screw (c). Oil the pivot post and spring. 3. *Reassemble the C.S. wheel by placing the heart cam (d) over the arbor of the wheel (e) and firmly secure it to the wheel and indexing finger with the cam screw. Then in­ sert the dial end of the wheel arbor in the center hole of the

Figure 8. Attaching the chronograph indexing pawl spring.

WINDING ARBOR DETENT SPRING AND CHRONOGRAPH COLUMN WHEEL (see Figure 7) 1. Turn the movement over to the train side and oil the winding arbor pivot; place the winding arbor detent spring (a) in position on the top plate and secure it to the plate with the spring screw (b). Oil the winding arbor cones. 2. Place the chronograph column wheel (c) in posi­ tion on the plate, apply oil, and fasten it with the left-handed Figure 9. M.R. idler lever and C.S. wheel installed. column wheel screw (d). Install the chronograph column

20 Horological Times/March 1987 Figure 10. Installing the C.S. bridge. Figure 11. C.S. idler lever and drive wheel installed. plate. Apply only a very small amount of oil to the edge of the heart cam. The chronograph heart cams must be attached se­ curely to the wheel, for when returning the hands to zero, C.S. IDLER WHEEL C.S. DRIVE WHEEL the sudden shock produced by the flyback hammer striking the cam is quite severe; it tends to disassociate the heart cam from the wheel, resulting in the hands not returning to zero.

MINUTE REGISTER WHEEL, BRAKE LEVER, AND CENTER SECOND BRIDGE (see Figure 10) 1. *Reassemble the M.R. wheel by placing the heart cam spacer (a) (see Figure 10) and heart cam (b) over the ar­ bor of the wheel (c) and securing them to the wheel with the cam screw; then insert the wheel arbor in the M.R. plate hole. Apply only a very small amount of oil to the edge of the heart cam. 2. Place the brake lever (d) in position on the pivot post on the plate. Install the flat brake lever spring (e) on the steady pins and fasten it down with the spring screw (f). Oil the pivot post and spring.

3. Install the C.S. and M.R. bridge (g) over the C.S. ONE-HALF THE DEPTH and M .R. wheels' pivots and oil each pivot. OF TOOTH

CENTER SECOND IDLER LEVER Figure 12. Depthing of C.S. wheel teeth. AND DRIVE WHEEL (see Figure 11) 1. *Reassemble the C.S. idler lever (often referred to as the coupling clutch) by installing the idler wheel (b) All depthing must be adjusted to allow the apex of in the pivot hole in the lever (c) and attaching the extension a tooth to engage approximately one-half the distance into the (d) with the extension screw (e). Oil the pivots, then place tooth of the engaging wheel, and so there are two center the lever in position over the pivot post on the plate (f) and second wheel teeth to every one tooth in the center second secure it with the hold-down screw (g). Install the flat idler idler wheel (see Figure 12). lever spring (h) on the steady pins and secure it with the spring screw (i). Oil the spring. 2. Carefully press the C.S. drive wheel (j) down over the protruding pivot of the fourth wheel. This section on "Reassembly" of the Elapsed Time Clock will ADJUSTMENT OF THE CENTER be continued in the May 1987 issue of the Times. SECOND WHEEL TEETH (see Figure 12) Of all the depthing of the various wheels in the chro­ nograph mechanism, the depthing of the C.S. wheel and M.R. wheel is the most critical. If the depthing is too deep, the slightest burr or small piece of dirt wedged between the fine teeth of the C.S. wheel may stop the clock. Likewise, if the depthing is too shallow, the light engagement increases back­ lash which will affect the clock's accuracy.

March 1987/Horologica/ Times 21 THE RIGHT WAY TO REPLACE A BARREL HOOK! or THE NUTS AND BOLTS OF REPLACING A BARREL HOOK WITHOUT THE NUTS!

The following is a response to an article which ran in the January 7987 issue of HOROLOGICAL TIMES on page 29, concerning replacement of a barrel hook, by Ken Law.

By Dave Stephens, CMC, CW

Uh-oh! Guess what happens when a nut on the out­ Figure 4 shows a screw in the lathe ready to be side of a barrel goes around far enough to lock up on the modified. I usually use a piece of medium steel to make a second wheel arbor (or bend it) or locks up on the seatboard hook but many times I don't have the size I want handy. A screw and stops the clock from striking or stops it from screw, if modified correctly, will give you the same results. running altogether? The first step is to remove the major portion of the screw The following is a photo essay on the correct way head (see Figure 5). to install a barrel hook without the risk of lock ups or causing After the head has been properly modified, we further damage to the movement being repaired. In addition then turn the screw around and modify the other end (see I'm sure I wouldn't want to show off a fine crystal regulator Figure 6). or glass sided Vienna style clock (especially if I were trying Figure 7 shows the finished product still in the lathe, to sell it to a customer) only to show something that looks like and ready to be installed in the barrel. Figure 8 shows a more it came out of an auto parts store. detailed picture of the hook. Note that there is a shoulder If you read the article in the January 1987 Horo­ cut in the hook just wide enough to accommodate the thick­ logical Times, page 29, on how to replace a barrel hook, ness of the mainspring. I usually allow .003" to .004" over the and you don't mind facing the possibility of running into a mainspring thickness to allow for sink and shrink which occurs few major problems, you can probably save yourself about during the riveting operation. five minutes or so with that method. However, if you have Figure 9 shows the hook riveted into place. Using a lathe and a graver (or even a hand drill and a file) you can the same method of securing the barrel over a piece of round probably save yourself a lot of aggravation by following the stock as shown in Figure 2. Again, take care not to hit the method shown here. teeth or you may end up with a bigger problem than you Figure 1 shows a barrel with the hook missing. started out with. Don't forget the wood! Figure 2 shows the barrel over a large diameter piece Figure 10 shows the hook as it should appear on the of brass stock secured in a vice. At this point you should inside of the barrel after the riveting operation. carefully tap the edge of the hole to correct the distortion Figure 11 shows the finished product. Use a fine file in the barrel tube. Extreme caution must be used when to smooth the rivet flush with the outside of the barrel tube hammering in this area as it is quite easy to miss your mark and you have a strong, safe hook that should withstand and bend or crush the teeth. I usually use a slip of wood even the healthiest clockwinder. over the teeth to protect them from being hit during this If you aren't taking the time to take pictures and operation. If you are really confident you can use your thumb write about what you are doing, this entire operation should to cover the teeth, but if your hammer wanders as mine some­ take you less than 15 minutes. Why not try this method out times does, it'll probably be a lot less painful if you just use a time or two on a barrel or a piece of tube stock. It's not hard the wood. to get good at it after a few tries! Figure 3 shows a chamfer cut on the outside of the This method of replacing a barrel hook is not neces­ hole. This can be done with a chamfering tool or a larger size sarily any faster than the method used in the January issue, drill bit. The chamfer is used to hold the hook as the metal but it is just as strong and safe, and it may just keep you from will be riveted over to fill the gap and give a very strong going completely nuts. hold in the barrel tube.

Figure 1 Figure 2 Figure 3 Figure 4

22 Horological Times/March 1987 Figure 5 Figure 6 Figure 7 Figure 8

Figure 9 Figure 10 Figure 11

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March 1987/Horological Times 23 TIHIE PHCIKlLE IAAAIL

Marshall F. Richmond, CMW

BASIC JEWELRY BEPAIB LESSON 6 PRACTICE PROJECT - MAKE A BRASS RING

orking nonferrous metals for jewelry, gold, silver, MATERIALS NEEDED copper, brass, and nickel is similar to that of bonding The tools needed for this project can be the tools previously with hard solder. Since the cost of gold is so great listed for basic jewelry repair in the September '86 H.T. For and brass is relatively inexpensive, I recommend that bra ss materials, use a piece of sheet brass at least four inches long be used for practice. Instead of using gold solder, silver solder and 1% to 2 mm thick. The width can be anything over one can be used for bonding the solder joints as it is also inex- inch as it will be necessary to saw strips from the edge. A piece pensive. of brass rod % inch in diameter, silver solder (can be purchased Silver solder is a white metal and brass is yellow, in quarter ounce sheets from material distributors), and flux is which would lead us to believe that the solder joints would also needed. Brass sheet can sometimes be found in salvage be noticable when finished and polished-but this is not ne­ yards; clock brass can be found in clock material houses. Any cessarily so. For some reason that I cannot explain, when the brass sheet can be used, even if it is tarnished black. By pickling silver solder is flowed into the brass it will turn yellow and it and using a wire brush, the tarnish (oxide) can be easily re­ match the color of the brass. The joint can be finished and moved. polished to be invisible. When silver solder is used on silver, GETTING STARTED nickel silver, or a white metal it will remain white in color and A piece of metal strip 3 mm in width and 53 mm long will the joint will be invisible when fin ished. make a ring (band) a little shy of a size 6, when finished 2 to Gold can be used for practice. If all the fil ings are 2% mm in width (depending on how much width is filed away saved it will salvage out at about 70 to 80 percent of the fine in shaping). Last month's lesson on ring sizing has an illustra­ gold value, depending on how it is disposed of, but the loss tion of a gauge showing the length of metal required for mak­ will still be greater than the cost of brass and silver solder. ing rings from size 0 to size 13. In using this gauge the length needed can easily be measured with a Vernier caliper, a milli­ meter gauge, or a simple pair of dividers. I prefer the Vernier pmm caliper for its stability. It can even be used for marking the Go ~ .. rod width on the plate by guiding one side of the caliper on the A 1Y, to 2mm plate edge and marking with the other jaw. After the piece is sawed cut off< out make sure the ends are square before bending, then us­ ing the watchmakers bow pliers bend it in a circle until the B HO Y.. " rod f5l> ends meet. It is not necessary that this be a perfect circle be­ fore silver soldering the ends together, but do make sure the ends fit tightly together as this will be a butt solder joint (see Figure 1-C). Cut a square of silver solder a bit larger than the width and thickness of the band. Insert it in the crack where the ends come together. Heat the area on and around the solder and apply flux, which should make a slight sizzling sound and turn white. Now apply heat with the torch until the solder melts. As the brass turns red the solder should flow. Move the torch around to make sure that the solder has flowed all around the joint. While the ring is still hot it can be dipped into the pick­ ling solution since it has no stones or enamel that could be damaged by cooling too quickly. After pickling while the ring is still wet from the rinse water, put a bronze wire brush wheel on the polishing motor and burnish the outside surface of the ring. It will come out shiny as all oxides and foreign contam­ inants on the surface have been removed.

24 Horological Times/March 1987 1r1H1E P11c1~LE IAAAIL

Slide the band on the ring mandrel and with the can be sized larger using "V" type joints as was explained in rawhide mallet make the band round. If it is less than a size 6, the lesson on ring sizing last month. by tapping on the outside with a steel chasers hammer it can To make a brass head take the 14 inch diameter brass be stretched; tap it up a quarter of a size at a time. Take the rod and make sure the end is square. With a flat file having one ring off the mandrel and reverse the edges, for as the mandrel edge smooth start filing a shallow groove around the circum­ is tapered so will the inside of the ring be if this is not done. ference of the rod about 10 mm from th.e squared end. This Next, take a half round inside ring file and remove can also be done with the jewelers saw. The purpose of this is any roughness where the ring is soldered. With a flat file, file to make a tapered head 10 mm long. It can be a round head the edges smooth. Last, file the outside of the ring leaving a or a square head but should be tapered before cutting off in flat surface. Check to make sure that the band is uniform the groove (see Figure 1-G and H). After checking to see that and not wider in some places. Now it is ready to polish. the proportions look all right, cut it off with the jewelers saw in the groove you used as a mark 10 mm from the end. POLISHING Now you have a shank and a head to assemble into a ring. Place a piece of fine emery cloth wrapped around an inside Take the band and locate the solder joint. You may ring buff on the polishing motor. Holding the ring around it, have to flux and heat it until the solder melts slightly to be the inside of the ring can be emery-finished on the inside. able to find it. With the jewelers saw cut the band in the sol­ Then by running the sides over the outside are the sides der joint. If you filed the head square it will probably fit into emery-finished and then the outside. Now it should be ready the shank with very little or no filing. If you want to main­ to polish with tripoli and rouge. tain the size 6 then make a second cut in the band removing a With the inside finger charged with tripoli the inside small piece the width of the bottom of the head. If the ring of the ring can quickly be brought to a bright finish. Take was filed round then the ends of the band where the head a felt buff wheel charged with tripoli and bring the sides and will seat must be filed with a half round needle file to fit the the outside to a bright finish. A soft cotton wheel charged head. There are many ways to set the head and shank up for with tripoli can then be used to increase the brightness on the soldering. For a novice I would suggest using the third hand outside surfaces of the ring. Repeat the same process using the tool: a pair of heavy duty tweezers mounted on a base with a inside finger and the cotton buff wheel charged with rouge, double swivel so it can be turned and maneuvered to hold the omitting the use of the felt wheel (the felt wheel was used to shank on the head which is placed on the asbestos pad while keep the flat surfaces flat). The rouge will not remove enough soldering. Grasp the band or shank opposite the opening with metal to create a problem. heavy duty tweezers. Lay the head on the asbestos pad with For a final finish, clean the ring with a solution of the small part up (upside down) and fit the shank to the head. soap or detergent and ammonia, or a commercial jewelry Align by maneuvering the third hand tool. When the align­ cleaner in an ultrasonic tank, or with a brush. Dry it and in­ ment is satisfactory, heat with the torch and flux with the spect it. You will observe that the solder joint is hard to find flux brush. Break off two small squares of silver solder, flux even using magnification and the solder joint is the same color them, and place them over the cracks on each side of the head as the brass ring. inside the ring. With the torch, play the heat over the head So you think you're finished? Well, you've only and shank until the solder flows. Then while still hot, dip into just started, so read on ... the pickling solution. Check to see that the solder has flowed thoroughly. If it has not it can be fluxed and reheated until INSTALLING HEADS & SHANKS it flows completely without using the third hand tool if the The brass band that has been described can be the base for head has been secured with the first soldering in alignment. making a ring with a head which will teach you how to install Place the ring on the ring mandrel and with the raw­ heads and shanks. After the head is installed the shank can be hide mallet tap the shank until it is round; check the size. If filed to a taper with the shank opposite the head narrower enough metal was removed from the shank before fitting the than at the head like most engagement rings. This can then be head it should be a little smaller than the original size 6. If made into a half round shank by filing. After this is done it (Please tum to page 27)

March 7987/Horological Times 25 • }JOV1CC Welch~kcr

James Adams, CMW

Estimating the Repair Of Mechanical Watches

first encounter you will have bars? Is the bracelet attachment in satis· or at least remove the back. But a word the progression of events factory condition? Look at the crown. of advice is necessary here. Estimating to completing a repair job is Does it need replacing? If so, what kind should be done carefully and precisely. that of estimating. When done by others, of crown is it: dress, waterproof, screw There is as much work to that phase as your hands are tied as to what repairs down, or something else? ls it some· there is to the actual repair work. you are to make. Many estimates are thing that needs to be special ordered First we must observe the sur· poorly done. Some are really better to affect a promised delivery date of the face condition of the movement. Is it called "guesstimates." Some estimates final repair? rusty, or covered with dust and dirt? miss very major problems. It would be Next try to wind the watch, Does it appear to have been running after ideal when the person doing the actual and try to pull the stem out to set it. the oil has dried? Does the visible part of work can do his own estimating. Even so, Note the amount of extra resistance you the stem look rusty? Maybe it has a there are times you will outsmart your­ feel. Try to move the crown and stem broken mainspring, or if it's an older self if you become lax. laterally to check for excessive side shake. model you might assume a set main· When the watch is presented Look at the condition of the dial and spring. Also, if it's an automatic wind to you for estimating you'll hear: "There hands. Would this be in need of a dial movement, keep in mind that those main· is nothing wrong with it, it just stopped," refinish? Are the hands free of rust forma· spring/bridle types have been known to or, "I dropped it," "I went swimming tions or does it have the look of mois· break. Broken automatic mainsprings are with it," "My dog got hold of it," and on ture damage? If the hands show signs of hard to detect. Carefully check the and on. Sometimes the owner gets help­ rust, you'd better start thinking of what balance completely, balance staff, and ful : "It makes a funny noise," "It stopped may be under the dial (problem-wise). balance spring (I dislike the term "hair· so I tapped it on the dashboard of my If this is an older American spring"). Check the balance hole jewels, car," "It doesn't tick anymore," "I took pocket with a hunter case, check the especially in the American pocket watch· the back off but I couldn't fix it." And locking action of the lid, and check the es. Again in the American pocket watch of course there's, "This needs a little action of the case lifter spring. Most of check as best you can the condition of squirt of oil." the older American hunter cases can be all the jewel bearings or holes where not Now after all this help, you must repaired. But this isn't so with the newer jeweled. get on with the task at hand. We will hunter cases used on imported move­ You must start to form an in· estimate this "it-doesn't-tick-anymore" ments. Their finishes are very fragile tuitive feeling of what you can't see. watch. (Here we are only interested in the and these cases are best left alone. About This wil I develop in you after the first mechanical type of watch; other types the only thing you can do with these 200 estimates you do. Even after a care­ will be discussed later.) cases are to replace the lid hinge wire. ful examination you will miss some areas; First, give the watch a good Even that can prove to be a problem. older pros do. But in their case, much of visual external examination. Is the crys­ You must determine if the hinge wire that comes through sloppy estimating. tal glass or plastic? Does it need to be is tapered. If so, in which direction was Always strive to do the best you can. changed? If plastic, can it be polished out it inserted? Or if it is not tapered, just Eventually you can be the best in our to improve its appearance? Are the case how tight does it fit the hinge? Hunter profession. lugs in decent condition, or do they need cases are a major part of an estimate. to be rebuilt? How about the spring Now we can unease this watch

26 Horological Times/March 7987 flux residues. While still wet from rinsing, burnish off with a PICKLE BARREL bronze wire brush wheel on the polishing motor. Any resi­ (Continued from page 25) dues left will easily come off, leaving the ring with a bright and satiny finish. Check to make sure the solder has flowed completely, then place it on the ring mandrel and check size. It should be slightly smaller than an 8. File the inside of the this is the case it can easily be stretched to a 6 by using the ring with the half round inside ring file so the piece and the steel chasers hammer and tapping the shank opposite the solder joints are smooth on the inside of the ring. Again place head. Now the ring can be shaped starting by using a half it on the ring mandrel. If it is very much under an 8, use the round file and file any excess solder inside the ring making steel chasers hammer and tap on the outside of where the it smooth. Then use a flat file and file the sides of the shank piece was added, tapping toward the large part of the mandrel. making it tapered from the head to the point opposite the This will stretch the metal and also widen the piece where head. tapped. If it has not yet reached the size 8, remove the ring SIZING A RING LARGER and lay it on a steel bench block. Tap its sides with the steel At this point it is a good time to execute the last practice ex­ hammer. This will stretch it more as well as narrow the pieced ercise of this project. Directly opposite the head cut the shank part of the shank. It can then be put back on the mandrel and and put it on the ring mandrel. Slide it against the taper un­ by more tapping as necessary be made the exact size wanted. til it is a size 8, which means enlarging the ring two sizes. The outside of the shank can then be shaped with a flat file. With a needle file shape the ends to a wedge-shaped point If a half round shank is desired it can be so shaped by twisting or 60 degrees. With the ring on the gauge measure the gap to the file while making the cutting strokes, using the flat file. make it a size 8, including the points, because the piece cut to When the proper shape has been obtained, the file marks can this measurement will have v-shaped notches cut into it with be removed by using emery cloth on the inside ring polishing a triangular file. From the flat brass that the band was cut, finger or using an emery buff stick, or both. This makes it cut out a piece with the jewelers saw slightly wider than the ready for polishing starting with the inside ring finger with shank where the piece is to be fit. Hold it in a hand vise or a tripoli, then the outside with felt wheels and cotton buffs us­ pair of rough jaw parallel pliers. Start the groove in each end ing tripoli, final finishing with duplicate finger and buffs us­ by sawing into the end with the jewelers saw to about the ing rouge. The final finish should be mirror bright. When this width of the saw blade. This will make it easy to control the finish has been obtained, wash the ring in a solution of soap triangular needle file while filing the "V" groove in each end and ammonia, or a commercial solution in the ultrasonic tank of the piece. The piece can then be fitted in the ring shank. or with a washout brush. Finally, rinse in water, and dry. It may take two or three tries before you get the angle on the If this project is done as instructed you will have in­ ends of the ring shank to fit tightly in the grooves of the stalled a head in a r'ing, a shank, made a butt joint, sized a piece. By bending the ring shank to widen or narrow the gap ring larger using "V" joints, practiced filing, sawing, stretch­ the piece can be fitted just tight enough to hold securely. ing, and polishing. This project is for anyone wanting to learn Too much tension on the piece can cause distortion when jewelry repair if they do not have projects of their own im­ heated to solder. agination that will give them the practice and experience they Heat the shank and piece, then flux. The flux should need for working on actual repairs. turn white if enough pre-heat was applied. Cut two small squares of silver solder; with the flux brush apply these pieces directly onto the cracks where the piece joins the shank. They Lesson 7 will be involved with the making and re­ can be applied either on the outside or inside of the shank, pairing of silver jewelry. but apply the heat to the opposite side and heat until the sol­ der flows. The heat being applied on the opposite side of the shank from the solder will pull the solder through the cracks and make a good solder joint. While still hot, quench in pickling solution which will loosen or remove any oxides or

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March 1987/Horological Times 27 GEMSTONES

Edgar Cleves, Jr.

pine] is not as well known as it should be. The more short and long wavelength light. Neigher will display phos­ valuable specimens are those whose color resembles phorescence. Blue is inert in ultraviolet light. Deep purple, S ruby, emerald, or blue sapphire. Spine! comes in a which will luminesce red in long wave length, will be inert in beautiful variety of colors. These include colorless, deep to short wave length and will luminesce lilac in X-rays. Pale rose red, orange-red (rubicella), purplish red (almandine spinel), blue and violet will luminesce green in long wave length and grass green ( chlorospinel), very dark green ( cylonite ), black X-rays. (pleonaste ), and greenish-brown to dark yellowish brown Spinels are found in metamorphic rocks, particular­ (picotite or chrome spine!). Gahnospinel is a dark blue or ly in areas where limestone and marble are found. Spinels are greenish blue spine! with a high zinc content. Other colors are found in Afghanistan, Australia, Burma, Cambodia, Canada, blue, violet, and purple. Many of the colors are available from Finland, France, Germany, India, Italy, Japan, New Zealand, transparent to opaque specimens. However, the greater the Russia, Sri Lanka, Sweden, Thailand, and the United States. transparency, the more desirable and the more valuable the In the United States spinels are found in California, Colorado, gem. Massachusetts, Montana, New Jersey, New York, and Virginia. In order to make the spine! seem more valuable Spinels over 10 carats are unusual. However, there are qualifying terms were used or, in some cases, even incorrect a few large stones in museums throughout the world. Some of terms were used by unscrupulous merchants. "Spinel-ruby" the world's largest spinels include: for deep red or "balas-ruby" for rose-red should be avoided. a. in the Smithsonian Institution, an indigo blue Violet spine! should not be called "oriental-amethyst" and 36. l ct. from Burma and a pale purple 45 .8 ct. blue spinel is not "sapphire-spine!." "Arizona-spine!" and from Ceylon; "Kandy-spinel" should be avoided. Both are garnets. b. in the British Museum, a red 520 ct. from Sri The spinel group is large with varying chemical prop­ Lanka; erties. It is an oxide, which means oxygen is a major constitu­ c. in the Louvre Museum, a red 105 ct.; ent. It is a magnesium aluminate varying in composition, since iron, manganese, chromium, and zinc will sometimes substitute for magnesium and aluminum. Below are listed SPINEL TRIPLET some of the various chemical properties and the variations in the specific gravities and indices of refraction.

CHEMICAL R.L S.G. NAME

1. various colors MgAI204 1.719 3.55-3.63 2. red to black MnAl204 1.92 4.04 GALAXITE 3. green to black Fe(AICr)i04 4.42 PICOTITE 4. deep green ZnAl204 1.805 4.04.62 GAHNITE 5. blue (MgZn)Al204 l.725-1.753 3.584.06 GAHNOSPINEL 6. black FeAI204 1.835 4.40 HERCYNITE 7. dark colors (MgFe)Al204 1.77-1.78 3.63-3.90 CEYLONITE

Spinel crystallizes in the cubic system. Therefore, it is singly refractive. The luster is vitreous. The hardness on the DARK AREAS - COLORED SPIN EL Mohs scale is 7.5 to 8. The fracture is conchoidal, and it dis­ WHITE AREA - COLORLESS GEM plays no cleavage. The dispersion is very low-.020; therefore, it gives off very little fire. Reds and pinks will luminesce in

28 Horological Times/March 1987 d. in the American Museum of Natural History, a synthetic amethyst, chrysoberyl, garnet, ruby, synthetic red 71.5 ct. from Sri Lanka; and ruby, sapphire, synthetic sapphire, taafeite, and topaz. e. in the crown jewels of England, the two most Synthetic spin el is used in inexpensive jewelry. It is famous red spinels, the "Black Prince's Ruby" beautiful and plentiful. It was accidentally produced by Ver­ about 170 ct., and the "Timur Ruby," which neuil, while he was attempting to produce good blue sapphires. weighs 361 ct. It was only after 1930 that commercial production began. One school or thought is that the word "spinel" is Many colors are produced by the flame fushion method. derived from the French spine/la which originated from the During the production of synthetic spinels some are grown Latin spina, referring to the spine-shaped crystals. However, yielding a fine moonstone effect. This is caused when fine another idea is that it was derived from the Greek spinos. crystallites of lumina precipatate on annealing. Recently I Bolas is derived from the Latin bolacus, which came from the have seen green, blue, and red spinel triplets in small emblem Arabic badakshan, the name of the district where some of the jewelry. They could not be identified as triplets until after finest spinels were found during the Medieval period. Picotite they had been removed from their settings. is named after Picot de la Peyrouse, the man who first de­ In Europe, spinels are being heat treated to improve scribed chrome-spinel. Pleonaste is derived from the French color. It is reported that purple and pink spinels will change pleonaste, which is derived from the Greek pleonastos, which to yellow if heated to lOOO"C, but sometimes return to the refers to the additional faces of the crystal. Rubicelle is de­ original color upon cooling. Blue spinels change to green if rived from the French rubace, meaning another form of heated to 900"C. Blue spinels will change to yellow, if heated rubis (ruby). Ceylonite is named after the country Ceylon, above 1200"C. These greens and yellows will not revert to which is now known as Sri Lanka. Gahnite is named for the blue. Swedish chemist, J.G. Ghan. Galaxite is named for Galax, On rare occasions, four-rayed stars have been pro­ Virginia where the gem was first discovered. duced from gray or grayish-blue to black stones from Burma. Red spinel is a good substitute for ruby. Separating Six-rayed stars have also been produced from such stones. the two gemstones is not too difficult, if done with care. On extremely rare occasions, spinels with the color changes of Spinel is singly refractive and forms in the isometric system, an alexandrite are found. They appear grayish blue in daylight while ruby is doubly refractive and in the hexagonal system. and purplish in artificial light. If you cannot afford a fine The refractive index of spinel is usually lower than that of ruby, emerald, or blue sapphire, remember that a nice spinel ruby. This also holds true for the specific gravity. could take its place. Sometimes spinel can be confused with amethyst,

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City ______State ____ Zip ______PROGRAMS INSTRUCTORS ·------A Meter Microamps and Modules ...... Gerald G. Jaeger, CMW, CEWS B AWi Certified Citizen Quartz Watch Technician ..Buddy Carpenter, CEWS FEBRUARY 1987 C Pulsar Quartz Analog Y590 and Y112 ...... •.James H. Broughton, CEWS 7-8 F Detroit, Ml BISHOP D Seiko Quartz Combos ...... •.Leslie L. Smith, CMW, CEWS 8 T Baltimore, MD BROUGHTON E Quartz Watch Test Equipment ...... Calvin E. Sustachek, CMW 8 A San Diego, CA JAEGER 14-15 F F Common Sense Quartz Watch Repair...... Robert F. Bishop Phoenix, AZ BISHOP 15 T Mobile, AL CARPENTER G ESA Digital/Analog 900.911 and ETA Analog 21 D Okeechobee, FL SMITH 961.101 ...... •.William Biederman, CMW 22-23 s Philadelphia, PA BURCK HARDT H ESA Analog Quartz Repair ...... James Adams, CMW Using the Watchmakers Lathe ...... •.Archie B. Perkins, CMW MARCH 1987 L Introduction to Striking Clocks ...... •.Joseph G. Baier, Ph.D., CMC, CMW 15 H Atlanta, GA ADAMS M Striking Clocks-Advanced Seminar •.•...... Joseph G, Baier, Ph.D., CMC, CMW 29 T Columbia, SC CARPENTER N Introduction to Clock Repair ...... Ron Iverson and Jim Lachapelle R Introduction to Jewelry Skills ....•...... Marshall F. Richmond, CMW APRIL 1987 T St. Paul, MN S Management Seminar...... , ...... •. Fred S. Burckhardt 5 CARPENTER T Retrofitting ...... , .Buddy Carpenter, CEWS MAY 1987 James H. Broughton, CEWS 2 T Schenectady, NY CARPENTER U Advanced Lathe Course ...... , ...... Archie B. Perkins, CMW 3 T Rochester, NY CARPENTER V Antique Watch Restoration .....•...... Archie B. Perkins, CMW 17 T Toronto, Canada BROUGHTON W Restoration of Fusee Watches ...... Ralph Geiger, CMW, CMC, CEWS

March 1987/Horologica/ Times 29 WATCHE~

The following charts were made available to Horological Times by Mr. Gene Kelton, Senior Manager Technical Sales and Service, Citizen Watch Company of America, Inc.

CITIZEN WATCH POWER CELL LIST Gene Kelton Basic Data by Model !Model Nos. are represented by the first 3 alphanumeric or numeric digits) Datos basicos por modelo (los numeros de modelo se representan por los primeros 3 digitos alfanumericos o numericos)

I MODEL POWER LIFE POWER I LIFE MODEL POWER LI FE CAL. NO MODEL ' CAL NO CAL NO NO CELL NO IYEARI NO. CELL NO . : IYEARI NO CELL NO IYEARI AMS!lH AX-1 2010 280-39 2 R 280-904 30-5 8986 280-30 2 00-4 0031 AM l QH AX-2 2110 280-39 2 0 280-34 2 A 280-39 30-6 C010 3 AX-3 1430 280-202 8 00-5 0040 280-204 3 0 280-41 AX-4 2030 280-39 3 -5 0041 280-204 3 30-7 1010 280-51 1,5 AX-5 2030 280-39 3 -5 0042 280-204 3 AX-6 3220 280-34 3 00-6 P110 280-204 5 AX-7 3811 280-31 5 00-7 P100 280-204 5 31-0 8300 280-18 2 AY-2 1410 280·202 8 -7 P130 280-204 5 31-1 2001 280-39 2 AY-3 2110 280-39 2 00-8 PlOO 280-204 5 31-2 8301 280-28 2 AY-4 3811 280-31 5 00-9 P120 280-204 5 31-3 2030 280-39 3 AZ-0 2100 280-39 2 OR-3 9450 280-29 2 31-4 2030 280-39 3 AZ-1 1400 280-202 8 OS-4 9450 280-29 2 31-5 2030 280-39 3 AZ-2 3801 280-31 5 OT-5 9450 280-29 2 31-6 2030 280-39 3 OT-6 9470 280-29 2 31-7 2000 280-39 2 - - f-· --- OX-1 4921 280-44 2 - - --- 31-8 2000 280-39 2 BW-3 2030 280-39 3 OX-2 P080 280-52 2 31-9 2010 280-39 2 BW-4 8301 280-28 2 OX-5 P040 280-39 2 280-39 - -9 2030 3 BW-5 2030 280-39 3 OY-1 P070 280-53 201monthl BW-6 1000 280-34 3 - OY-5 P030 280-39 3 BW-7 3220 280-34 3 -5 P031 280-39 2 5 32-0 2200 280-58 3 ' BX-0 2000 280·39 2 - - - -- 32-1 2200 280-58 3 BX-2 2010 280-39 2 32-2 2200 280-58 3 1----- BX-3 8301 280·28 2 FR-0 1000 280-34 3 - 32-3 2040 280-39 3 BX-4 2030 280-39 3 -0 1260 280-48 5 32-4 2400 280-53 2 BX-5 3220 280-34 3 32-5 3220 280-34 3 BY-2 7510 280-18 2 - 32-6 3220 280-34 3 BY-3 2010 280·39 2 ST-1 9560 280-15 1 8 32-7 3220 280-34 3 BY-4 3610 280-34 2 ST-2 9570 280-15 2 32-8 3220 280-34 3 BZ-0 2000 280-39 2 ST-3 9500 280-204 5 -8 345* 280-61 2 ST-4 9510 280-204 6 32-9 3220 280-34 3 -- '"- ST-6 P020 280-52 201monthl C0-1 C02* 280·51 2 ST-7 0020 280-204 3 CP-1 9460 280·201 5 SU-1 9600 280-53 2 33-1 2760 280-56 2 CP-2 9230 280-30 2 33-2 2730 280-56 2 C0-2 9420 280-201 5 33-3 2730 280-56 2 CR-1 9590 280-204 5 20-2 ~q10 280-66 2 33-4 2710 280-56 2 CR-2 9610 280-202 4 20-3 3920 280-66 2 33-5 2710 280-56 2 CR-3 9440 280-203 5 30-0 894* 280-30 2 33-6 2250 280-58 3 CS-4 9270 280-46 3 -0 8970 280-30 3 33-7 2202 280-58 3 CT-5 9288 280-41 2 30-1 8960 280-53 2 33-8 3450 280-61 2 -1 9440 280-203 5 33-9 341* 280-61 2 30-2 8930 280-51 2 -9 342* 280-61 2 OP-1 9250 280-13 2 30-3 8950 280-44 2 -9 3450 280-61 2 OP-2 4850 280-51 2 30-4 8960 280-53 2 DP-8 4811 280-45 2 30-5 8980 280-30 2 00-2 9410 280-44 2 -5 8982 280-30 2 34-0 2820 280-56 2 00-3 4830 280-51 2 -5 8984 280-30 2 34-1 2820 280-56 2

30 Horological Times/March 1987 I MOOEL I ' POWER I LIFE MODEL I CAL t\'0 POWER LIFE MODEL I CAL NO I POWER LIFE NO. CAL NO. J CELL NO. (YEAR! NO · 1 CELL NO IYEAR I NO 1 . CELL NO I (YEAR! 34-2 2830 280-56 2 40-6 9170 280-13 1 44-5 7102 280-17 2 34-3 2830 280-56 2 40-7 9150 280-29 1 44-6 8551 280-18 1 34-4 2860 280-56 2 40-8 9220 280-15 2 44-7 7103 280-48 2 34-5 2810 280-56 2 40-9 9181 280-15 2 44-8 1200 280-48 2 34-6 2850 280-56 2 44-9 1250 280-48 5 34-7 2850 280-56 2 34-8 2110 280-39 2 41 -0 9080 280-4 1 2 34-8 2140 280-39 2 40-0 9081 280-15 2 45-0 7950E 280-31 2 -8 2180 280-39 2 41-1 9200 280-15 2 45-1 7960E 280-31 2 34-9 2100 280-39 2 41-1 9202 280-30 2 45-1 7960H 280-48 2 41-2 9230 280-30 2 45-2 7923E 280-45 2 41-3 9240 280-13 2 45-3 7933E 280-45 2 35-0 2931 280-59 2 41 -4 9460 280-201 5 45-4 1205 280-48 5 35-1 2950 280-60 2 41-5 9400 280-15 2 45-5 1400 280-202 8 ·1 2951 280-59 2 41 -6 9420 280-201 5 45-6 1400 280-202 8 35-2 2951 280-59 2 41-7 9270 280-46 3 45-7 1410 280-202 8 35-3 2831 280-56 2 41-8 8920 280-15 2 45-8 1430 280-202 8 35-4 2930 280-107 2 41-9 8900 280-15 3 45-9 1251 280-48 5 35-5 2851 280-56 2 -9 8910 280-15 2 -9 1401 280-202 8 35-6 2030 280-39 3 -6 2031 280-39 3 35-7 3801 280-31 5 42-0 9110 280-13 1 46-0 7530 280-18 2 35-8 3810 280-31 5 42 -1 9111 280-13 1 46-1 7530 280-18 2

35-9 3811 280-31 5 42-2 9210 280-34 1 46-2 7900 SPECIAL M 2

42-3 9250 280-13 2 -2 7901 SPEC IAL M 2 42-4 9410 280-44 2 46-3 7920 E 280-27 2 36-0 3600 280-34 2 42-5 9450 280-29 2 46-4 8532 280-18 1 36-2 3610 280-34 2 42-7 0046 280-204 3 46-5 7120 280-48 2 36-3 3630 280-34 2 .7 0048 280-204 3 46-6 7930E 280-27 2 36-4 3630 280-34 2 -7 0070/0071 280-204 3 46-7 7130 280-48 2 36-5 3630 280-34 2 42-8 0060 280-204 3 46-8 7121 280-48 2 36-7 362* 280-34 2 42-9 0050 280-204 3 -8 7131 280-48 2 36-8 3630 280-34 2 46-9 79618 280-31 2 36-9 2010 280-39 2 -9 7961J 280-48 2 43-0 8560 280-18 1 '- ·- ~ 43-1 7310 280-01 5 37-0 3802 280-31 5 43-2 7312 280-24 5 47-0 8510 280-18 1 37-1 353* 280-44 2 43-3 8561 280-18 1 47-1 8511 280-18 1 37-2 2030 280-39 3 -3 8563 280-18 2 47-2 751 0 280-18 2 37-3 3510 280-44 2 43-4 7990 280-27 2 47-3 79518 280-31 2 37-7 4031 280-39 2 43-5 1210 280-48 2 -3 7951J 280-48 2

37-8 4031 280-39 2 43-6 1220 280-31 3 47-4 1730 MEGA QUARTZ 2 37-9 4031 280-39 2 43-7 1230 280-31 3 47-5 852* 280-18 1 38-0 4031 280-39 2 43-8 1260 280-48 5 -5 7130 280-48 2 38-1 4031 280-39 2 43.9 7991 280-31 3 -5 7920 280-27 2 -5 7930 280-27 2 -5 1000 280-34 3 40-0 9062 280-41 2 44-0 730 1 280-01 5 47-6 8300 280-18 2

40-0 9064 280-15 2 44-1 7300 280-01 5 -6 1501 SPECIAL M 1 5 40-1 910* 280-15 2 ·1 7130 280-48 2 47-7 1000 280-34 3 40-2 9120 280-15 2 ·1 8300 280-18 2 -7 8300 280-18 2 40-3 9121 280-15 2 44 -2 7302 280-24 5 47-8 1000 280-34 3 40-4 9180 280-15 2 44-3 7302 280-24 5 -8 2201 280-58 3 40-5 9160 280-30 1 44-4 7370 MEGA QUARTZ 2 -8 1300 280-34 3

March 1987/Horological Times 31 LIFE LIFE MODEL POWER LIFE MODEL I CAL NO ' POWER : MODEL I CAL NO I POWER I CAL NO _ NO. CELL NO IYEARI NO . 1 I CELL NO. I IYEARI NO I • I CELL N9 1 IYEARI 47-9 7920E 280-27 2 59-1 9080 280-41 2 88-2 8301 280-28 2 -9 7930E 280-27 2 59-2 9090 280-41 2 88-3 2010 280-39 2 -9 7901 E/Y SPECIAL M 2 59-9 9061 280-41 2 -3 2020 280-39 3 -9 7933 280-45 2 -3 7530 280-18 2 -9 2721 E/Y 280-56 2 88-4 1300 280-34 3 -9 2810 280-56 2 60-0 8811 280-08 1 88-5 1000 280-34 3 -0 8620 280-01 2 -5 1100 280-39 2 60-1 901 * 280-01 2 88-6 1100 280-39 2 48-0 7500 280-18 2 -1 9002 280-41 1 88-7 7130 280-48 2 48-1 7500 280-18 2 60-2 8600 280-01 1 ·7 1000 280-34 3 48-2 8501 280-18 1 -2 8700 280-01 2 88-8 3220 280-34 3

48-3 7501 280-18 2 -2 8650 MEGA QUARTZ 1 -8 7920 280-27 2 48-4 7521 280-18 2 60-3 0840 280-01 1 88-9 7930 280-27 2

48-5 7910E SPE CIAL M 2 60-4 4840 280-01 1

48-6 7902E SPECIAL M 2 60-5 7803 280-06 2

48-7 7903E SPECIAL M 2 60-6 7804 280-06 2 89-0 7923E/ Y 280-45 2

48-9 1500 SPECIAL M 1 5 60-7 9040 280-01 2 -0 7950E 280-31 2 60-8 58* * 280-02 1 -0 2710 280-56 2 60-9 9030 280-13 1 89-1 1230 280-31 3 49-0 8300 280-18 2 · 1 2810 280-56 2 49-1 8300 280-18 2 ·1 7991E 280-31 3 49-2 1000 280-34 3 69-1 8630 280-01 2 89-2 7990E 280-27 2 49-3 1000 280-34 3 -2 7991 280-31 3 49-4 1300 280-34 3 -2 2720 280-56 2 49-5 11 00 280-39 2 81 -0 2710 280-56 2 -2 2820 280-56 2 49-6 1100 280-39 2 81 -1 2710 280-56 2 89-3 2820 280-56 2 -6 1131 280-101 3 81-2 2720 280-56 2 -3 2830 280-56 2 49-7 1100 280-39 2 81-3 3910 280-66 2 89-5 2200 280-58 3 49-8 1429 280-202 8 81-4 2730 280-56 2 89-9 2931 280-59 2 49-9 9130 280-41 3 81-5 2810 280-56 2 -9 9140 280-41 3 81 -6 2820 280-56 2 -9 9129 280-15 5 81-9 2830 280-56 2 90-0 2830 280-56 2 -9 9190 280-41 3 90-1 2860 280-56 2 -9 9288 280-41 2 90-2 2931 280-59 2 -9 9082 280-41 2 82-0 3620 280-34 2 -9 9071 280- 13 1 82-1 2930 280- 107 2 82-2 3630 280-34 2 98-0 3600 280-34 2 82-3 3220 280-34 3 50-0 8609 280-01 5 82-4 3220 280-34 3 -0 8629 280-01 5 82-5 2931 280-59 2 99-0 2880 280-29 3 -0 9069 280- 19 5 82-6 2200 280-58 3 99-0 3600 280-34 2 50-1 9060 280-41 2 99-1 3800 280-31 5 · 1 9063 280-15 2

50-2 9021 280-41 2 83-0 1501 SPE CI AL M 1 5 50-3 9025 280-41 2 83-1 2200 280-58 3 50-4 9040 280-01 2 83-3 2930 280-107 2 50-5 9050 280-13 1 83-5 2721 280-56 2 50-6 9070 280-13 1 83-7 2731 280-56 2

50-7 852* 280-18 1 83-8 7903 SP ECIAL M 2 50-8 8550 280-18 1 50-9 8500 280-18 1 88-0 8300 280-18 2 88-1 7530 280-18 2 59-0 8710 280-01 2 88-2 8300 280-18 2

32 Horological Times/March 1987 ELECTRIC SPECIFICATIONS OF QUARTZ WATCH ESPECIFICACIONES ELECTRICAS DE LOS RELOJES DE QUUARZO

1000 280-34 1 55 1 0 1 6-2 2 3610 280-34 1.55 1.1 2.1-2.7 10SEC 1100 280-39 1 55 1 8 30-36 362* 280-34 1.55 11 2.1-2 7 10 SEC 280-39 1.55 1.8 30-36 3630 280-34 1.55 11 2.1-27 10SEC 1200 280-48 1 55 25 22-28 280-31 1 55 11 1 8-24 10SEC 1210 280-48 1 55 2.5 22-28 381* 280-31 1 55 11 18-24 10SEC 1220 280-31 1 55 2 5 22-28 3910 280-66 1 55 05 16-21 10SEC 1230 280-31 1 55 25 2.2-2 8 3920 280-66 1 55 05 16-2.1 10SEC 280-48 1 55 2 5 22-28 4021 280-39 1 55 1 7 1 9-3 5 1260 280-48 1 55 25 2.2-2 8 4031 280-39 1 55 1.7 1 9-3 5 13 * * 280-34 1 55 1 0 1 6-2 2 4811 280-45 1 55 11 14 * * 280-202 3 1 4 2,5-30 •lOSEC 4830 280-51 1 55 20 SPECIAL 1500 MODULE 4850 280-51 1 55 2 0 SPECIAL 1501 MODULE Repaired at Citizen Service Center 4921 280-44 1 55 23 MEGA 1730 QUARTZ 7102 280-17 1 55 40 22-32 200* 280-39 1 55 1 5 19-24 10SEC 7103 280-48 1 55 40 22-32 2010 280-39 1 55 1 5 19-24 lOSEC 7120 280-48 1 55 40 3 6-4 3 2020 280-39 1 55 1 3 28-34 10SEC 7121 280-48 1 55 40 22-32 203* 280-39 1 55 1 3 28-34 10SEC 7130 280-48 1 55 40 36-43 2040 280-39 1 55 1.3 28-34 lOSEC 7131 280-48 1 55 40 22-32 21 * * 280-39 1 55 1 5 19-24 10SEC 7300 280-01 1 55 40 16-24 220* 280-58 1 55 02 17-21 10SEC 7301 280-01 1 55 40 22-27 2250 280-58 1 55 0 2 17-21 lOSEC 7302 280-24 1 55 40 22-32 2400 280-53 1 55 0.5 09-12 10SEC 7310 280-01 1 55 40 16-24 2710 280-56 1 55 1 2 26-32 7312 280-24 1 55 40 22-32 280-56 1 55 1 2 26-32 MEGA 7370 QUARTZ Repaired at Citizen Service Center 273* 280-56 1 55 1 2 26-32 75* * 280-18 1 55 40 25-35 2760 280-56 1 55 1 2 26-35 SPECIAL 7900 MODULE 1 55 1 2 26-32 SPECIAL 2810 280-56 7901 MODULE SPECIAL 2820 280-56 1 55 1 2 26-32 7902 MODULE Repaired at Citizen Service Center SPECIAL 2830 280-56 1 2 26-32 7903E MODULE SPECIAL 2831 280-56 1 55 1 2 26-32 7910 MODULE 2850 280-56 1 55 1 2 26-32 7920 280-27 1 55 2 5 32-40 2851 280-56 1 55 1 2 26-32 7923 280-45 1 55 2 5 32-40 2852 280-29 1 55 1 2 26-32 7930 280-27 1 55 2 5 32-40 2860 280-56 1 55 1 2 26-32 7933 280-45 1 55 25 32-40 2880 280-29 1 55 1 5 26-32 lOSEC 7950E 280-31 1 55 25 32-40 2930 280-107 1 85-1 55 09 26-32 •10SEC 7950H I J 280-48 1 55 2 5 32-40 2931 280-59 1 55 09 26-32 •lOSEC 7951 8 280-31 1 55 2 5 32-40 2950 280-60 1 55 09 27-33 10SEC 7951 J 280-48 1 55 Z.5 32-40 2951 280-59 1 55 09 27-33 10SEC 7960E 280-31 1 55 2 5 32-40 3220 280-34 1 55 0.5 19-25 10SEC 7960 HI J 280-48 1 55 25 32-40 280-61 1 55 1 4 ~~=~~ •10SEC 7961 B 280-31 1 55 2 5 38-40 280-61 1 55 1.3 08-13 •lOSEC 7961 HI J 280-48 1 55 2 5 3 2-4.0 0 8- l 3 280-61 1 55 1 4 3 6-4 4 * 10 SEC 7990 280-27 1 55 2 5 3 2-4 0 280-61 1 55 1.3 08-1 .3 •lOSEC 7991 280-31 1.55 2 5 3 2-4 0 0 8- l 3 280-61 1 55 1 4 36-44 * 10 SEC 8300 280-18 1 55 40 2 5-3 5 0.8-1 3 8301 280-28 1 55 25 2.5-3 5 3510 280-44 1 55 3.0 1.7-21 •10SEC 2.4-3 0 26-34 85* * 280-18 1 55 40 08-13 3 3-4.1 280-44 1 55 3 0 17-21 •10SEC 24-30 8600 280-01 1 55 85 3 2-4,0 3600 280-34 1 55 1.1 21-27 lOSEC 8610 280-01 1 55 8.5- 3.2-4,0 * (OFC with time adjusting terminal) When the measure time is free, measure items in 2 seconds or a period of time of integer times as long as 2 seconds

March 1987/Horologica/ Times 33 MODULE I MEASURE I POWER CEl l POWER COIL TIME FOR CAL CONSUMP RESIST THC: NO CITIZEN VOL1AGE ANCE I QUARTZ I TION IK"I NO IVI 11 1 MAX Al TESTER 862• 280--01 1.55 6.0 4.2-5.2 9400 280-15 1.55 3.0 8630 280-01 1 .55 60 4 2-5.2 9410 280-44 1.55 2.5 * 10 SEC 8640 280-01 1.55 6.0 4,2-5.2 9420 280-201 3 2.0 10SEC MEGA 2.0 10 SEC 8650 OUARTZ Repaired at Citizen Service Center. 9440 280-203 3 87• * 280-01 1.55 4.0 - 9450 280-29 1,55 1.5 10 SEC 88* * 280-08 1 55 15 5 47-53 9460 280-201 3 20 * 10SEC 8900 280-15 1 55 4.0 2.5-3.0 9470 280-29 1 55 1.5 10SEC 891* 280-15 1 55 35 25-30 9500 280-204 3 1.6 10 SEC 892* 280-15 1 55 4.0 2 5-3.0 9510 280-204 3 1.6 10 SEC 8930 280-51 1 55 20 2 0-2.5 9560 280-15 1 55 50 894* 280-30 1 55 2.0 1 2-1 .6 9570 280-15 1.55 36 8950 280-44 1 55 24 20-25 9590 280-204 3 1 6 10 SEC D/O 10 SEC 9600 280-53 1.55 1.2 8960 280-53 1 55 24 1 0-1 5 AIQ20 SEC 8970 280-30 1 55 2 0 1 2-1 6 9610 280-202 3 1 8 ~~: lOSEC Ana log· 0 9-1 3 1 3 10 SEC 280-39 1.55 898* 280-30 1 55 36 C010 D1g1ta l 22-28 280-41 1 8 C02* 280-51 1.55 Analog l 2 1.8-2.4 9002 280-41 1 55 - - 01 Jta1 2 3 901* 280-01 1 55 1 0 - D020 280-204 3 2 2 902* 280-41 1 55 60 Hadio 280-904 1 5x3.oc - D031 D1g1Lal 280-34 1 55 1 3 9030 280-13 1 55 50 - D04* 280-204 3 2 2 9040 280-01 1 55 60 - D050 280-204 3 1 8 9050 280-13 1 55 40 - D060 280-204 3 22 9060 280-41 1 55 40 - D07* 280-204 3 2.2 9061 280-41 1 55 40 - P020 280-52 1 55 1 5 9062 280-41 1 55 40 - P030 280-39 1.55 1.3 9063 280-15 1 55 40 - P031 280-39 1 55 1 2 9064 280-15 1 55 40 - P040 280-39 1,55 1 6 9069 280- 19 1 55 40 - P070 280-53 1 55 1 8 907* 280-13 1 55 40 - P080 280-52 1.55 1.8 908019082 280-41 1 55 40 - P100 280-204 3 1 6 9081 280-15 1 55 40 - Pl10 280-204 3 1.6 9090 280-41 1 55 40 - P120 280-204 3 09 910* 280-15 1 55 40 - P130 280-205 3 1.8 911 * 280-13 1 55 40 - TOlO 280-51 1 55 29 28-34 912* 280-15 1 55 4.0 - 9130 280-41 1 55 40 - 9140 280-41 1 55 40 - 915* 280-29 1 55 30 - 9160 280-30 1 55 40 - 9170 280-13 1 55 40 - 918* 280-15 1.55 40 - 9190 280-41 1 55 40 - 9200 280-15 1 55 4.0 - 9202 280-30 1 55 30 - 9210 280-34 1 55 3.0 - 9220 280-15 1 55 4.0 - 9230 280-30 1.55 4.0 - 9240 280-13 1 55 4.0 - 9250 280-13 1 55 2.5 - 9270 280-46 1 55 2.0 - 9288 280-41 1.55 2.0 - • (OFC con terminal de ajuste de tiempo) Cuando el tiempo de ajuste es libre. mide el reginen de tiempo en 2 segundos o en un periodo de tiempo mUltiplo de 2 segundos.

34 Horological Times/March 1987 POWER-CELL CROSS REFERENCE (BY DIMENSIONS AND VOLTAGE) REFERENCIA CRUZADA DE PILAS (POR DIMENSIONES Y VOLTAJEl ...... 280-01 LOW 1.55 116x42 SR43SW RW34 SE301 280-02 LOW 1 35 7 9x3 6 NR41 325 280-05 LOW 1.35 11 .&I> x 3.6 343 280-06 LOW 1 35 116x54 MR44 313 280-08 LOW 1.55 11.6x5.4 SR44SW SONY303 303 280-13 HIGH 1 55 7.9cj>X3 6 SR41W RW47 SR41W 280-15 HIGH 1 55 11.6x3.1 SR1130W RW49 SONY389 SR1130W 280-17 LOW 1 55 9 5x3 6 SR936SW RW33 280-18 LOW 1 55 7.9<1> x 3.6 SR41SW RW37 SONY384 280-19 • HIGH 1 55 11 .6x3 6 G10RC 280-24 LOW 1 55 11 &t>x31 SR1130SW RW39 280-27 LOW I 55 116x21 SR1120SW RW30 280-28 LOW 1 55 7.9<1> x 2 6 SR726SW 280-29 LOW 1 55 7 9<1> x 2 1 SR721SW RW310 SONY362 SR721SW 280-'30 HIGH 1 55 11 .6cP x 2 1 SR1120W SONY391 SR1120W 280-31 LOW 1 55 9 5x2 1 SR920SW SONY371 SR920SW 280-34 LOW 1 55 6 Bx2 1 SR621SW SR621SW SONY364 SR621SW 280-39 LOW 1 55 68x26 SR626SW SR626SW SONY377 SR626SW 280-41 HIGH 1 55 11&1>x42 SR43W RW44 SONY386 280-44 HIGH 1 55 95x27 SR927W SONY399 SR927W 280-45 LOW 1 55 95X1 ,6 SR916SW SONY373 SR916SW 280-46 LOW 1 55 116X1 6 SR1116SW 280-48 LOW 1.55 9 5x2 7 SR927SW RW313 SONY395 280-51 HIGH 1 55 9 5 x2 1 SR920W SONY370 SR920W 280-52 HIGH 1.55 7 9 x 2 6 SR726W SONY396 SR726W 280-53 HIGH 1 55 7 9<1> x2 1 SR721W SR721W ~80-561551 LOW 1.55 79<1>x1 6 SR716SW SONY315 SR716SW 280-58 LOW 1 55 58X1 6 SR516SW SONY317 280-59 LOW 1 55 5 Bx2. 1 SR521SW SE379 SR521SW 280-60 LOW 1 55 5 8 x 2 6 SR527SW SE319 280-61 HIGH 1.55 9 5x 1 6 SR916W 280-66 LOW 1 55 79X1 3 SR712SW SR712SW 280-107 LOW 185-155 5Bx1 6 TR516HSW 280-201 - 3 22 8x2 O BR2320 280-202 - 3 22Ox1 6 BR2016 280-203 - 3 230xl6 CR2316 280-204 - 3 200Xl6 CR2016 CR2016 280-205 - 3 200x25 CR2025 280-904 - 1 5 11 &l>x 5.3 LR44

•LOW DRAIN TYPE Used for the watch without • TIPO DE BAJO CONSUMO Usado para relojes sin luz ni light or alarm alarm a • HIGH DRAIN TYPE Used for the watch with • TIPO DE ALTO CONSUMO Usado para relojes con luz, light or alarm or both alarma o am bas *280-19 is a solar battery. * La 280-19 es una pila solar. Power cell Nos. are subject to change without notice. Los numeros de pila estan sujetos a cambios sin previo aviso.

NOTICE AVISO This is for your cross reference among various brands. Esta lista le permite efectuar referencias cruzadas entre varias Be sure to purchase the right cells refering to the names of marcas. Asegurese de adquirir las pilas correctas, consultando manufacturers and product codes listed. las nombres de las fabricantes y las c6digos de producto CITIZEN watches use no alkaline-manganese cells except radio enumerados. Los relojes CITIZEN no usan pilas alcalinas de watch. Please see that customers are offered fresh cells of the manganese, excepto las relojes radio. Vea que se ofrezca a las right kind. clientes pilas frescas del tipo debido.

FEB 186 Printed in Japan

March 1987/Horological Times 35 ... from all around the ASSOCIATION ...

IND I ANA The Horological Association of Indiana Board of Directors have announced the schedule for the 1987 Spring Workshops. For the southern portion of the state, the workshop will be held in Jasper on Sunday, April 26. For those in the north the UPCOMING EVENTS site will be Lafayette on Sunday, May 17. ' This year's workshops will feature beginning clock Iowa Jewelers & Watchmakers Association repair, advanced bench practices for the clockmaker, and Spring Seminar troubleshooting electronic watches. Dave Christianson will April 12, 1987 present both of the clock workshops. Ray Vance, Jim The Highlander Inn - Iowa City, IA Wittgren, and Bill Botkin will each set up their benches for the electronic watch program. They will welcome problem Ontario Watchmakers Association watches or any questions on testing and diagnostic procedures 50th Anniversary Annual Meeting & Banquet that you might have. April 26, 1987 Loews Westbury Hotel, 475 Yonge Street Toronto, Ontario CANADA

Wisconsin Horological Society Convention NEW JERSEY April 24, 25 and 26, 1987 Eau Claire, WI

Horological Association of Virginia Annual Convention May 1, 2 and 3, 1987 Fair Oaks Holiday Inn - Fairfax, VA

Texas Watchmakers Association 40th Anniversary Convention May 1, 2 and 3, 1987 Marriott Hotel - Austin, TX

Watchmakers Association of Pennsylvania Annual Convention June 12, 13 and 14, 1987 Lancaster, PA

Nebraska & South Dakota Jewelers Association ' 82nd Annual Convention August 28, 29 and 30, 1987 Midtown Holiday Inn - Grand Island, NE

Iowa Jewelers & Watchmakers Association Joseph Zydiak of Raritan, NJ (center) receives the Watchmakers Convention and Trade Show Association of New Jersey (WANJ) Fellowship Award from President John Sokol (left) and Emil Chesari, awards chairman. Zydiak is a past September 12 and 13, 1987 president of the organization. The award was presented at the WANJ Airport Hilton - Des Moines, IA dinner dance celebrating its 47th anniversary.

36 Horological Times/March 1987 Dates To Remember Ad Index

MARCH 1987 5-Retrofitting Bench Course (AWi), Buddy American Perfit ...... 17 Carpenter, instructor, St. Paul, MN. Becker Heckman ...... • . . . 27 7-8-lllinois Jewelers Association 1987 Con­ Borel ...... •...... 7 vention and Trade Show, Holiday Inn 5-Dial Foot Soldering Seminar, sponsored by Bowman School. • ...... 27 East Conference Center, Springfield, IL. Watchmakers Association of Ohio, Park (217) 546-0532. Cas-Ker ...... outside back cover Motel, Canton, OH. For more infor­ CFI .. .•.•..•.•.. • ...... 27 9-11-Zantech's Hands-On Quartz Watch Repair mation contact Jack St. Cyr, 5323 Course. Townhouse Motel; Trenton, NJ. Edgeview Rd., Columbus, OH. All Esslinger ...... •.. . inside front cover For information contact: Zantech Inc registrations must be received by March 77 Shady Lane, Trenton, NJ OS61S; 18, 1987. Gem City College ...... 4 (609) 586-5088; (800) 441-7569. 12-lowa Jewelers & Watchmakers Association Innovative Electronics •...... 4 Spring Seminar, The Highlander Inn, 15-ESA Analog Quartz Repair Bench Course Iowa City, IA. Jewelmont Corporation ...... 23 (AWi ), James Adams, instructor, Atlanta, GA. 23-30-BASEL '87 European Watch, Clock S. LaRose ...... 13 and Jewellery Fair, Basel, Switzerland. 21-22-Michigan Jewelers Association 80th Tel. 61-26-77-00, telex, 62982 lits ch. Marshall Swartchild ...... 3 Annual Convention and Trade Show, Hyatt Regency, Dearborn, Ml. (517) 24-26-Wisconsin Horologcial Society Conven­ New York Jewelers .... • .... .• . .••• 4 372-5656. tion, Eau Claire, WI. Oceanside Time ...... , • • ...... 5, 23 29-Retrofitting Bench Course (AWi ), Buddy 26-0ntario Watchmakers Association 50th Paris Junior College. . • . . • • . • •••.. , 13 Carpenter, instructor, Columbia, SC. Anniversary Annual Meeting & Banquet, Loews Westbury Hotel, Toronto, Seiko ...... •inside back cover Ontario. For more information: R.R. 1, APRIL 1987 Cookstown, Ontario LO L 1 LO. Phone Toledo Jewelers ...... 11 (705) 458-9221.

measure for strip pallet escapements that gain substantially CLOCKS INSIDE AND OUT at the beginning of the week and lose substantially at the end (Continued from page 17) of the week.5 The English clockmakers have solved the problem in a practical sense by curving the entry (and some­ times the exit) pallet to compensate for differences in re­ coil.2 This is the most successful method because it very In an ideal escapement the angles of incidence (and therefore closely approximates the theoretically ideal pallet shapes. the recoils) on both pallets will be equal. It should be noted While it is possible to generate pallet curves to satisfy both that the only instance in which the angles of incidence and the the requirement for equal lever arm ratios and equal recoils, lever arms ratios can both be equal is when the angles of it is not very easy to accomplish and would have little prac­ incidence are 45°. The rule of thumb regarding recoil is that the recoil tical value today .2 Remember, in a practical escapement, of the entry pallet must equal the recoil of the exit pallet. the amount of effort applied to shaping the pallets to correct In an ideal escapement, this is accomplished by making the lever arms, recoils or isochronism should not exceed the angles of incidence on both pallets equal to 45°. Two further quality of the movement. rules regarding the amount of angle of incidence must also Once the lever arm ratios and recoils have been be observed. The angles of incidence should never exceed determined to be correct or have been corrected, the next 45° as this would cause an excessive amount of recoil result­ thing to be adjusted is the drop (and lock). At this point ing in unacceptably large isochronal errors. The a~gles of it is desirable to make the drop adjustments in such a manner incidence must never be less than those required to keep that the lever arms and recoils will not be affected. For this the tips of the pallets from coming into contact with the reason, if it is necessary to increase the entry drop, the tip backs of the escape wheel teeth during recoil. The objective of the entry pallet should be ground back slightly. Make only in setting up the recoils is to make them equal without af­ small adjustments to avoid the need for compensating ad­ justments. Be certain to remove any burrs while restoring the fecting the equality of the lever arm ratios. pallet tip to its original shape. If it becomes necessary to There are a number of ways in which this is accom­ decrease the entry drop, it is recommended that it be de­ plished. It has already been pointed out that the natural creased by the addition of stock to the acting face of the exit inequality of the recoils tends to diminish as the escape wheel pallet as this will not significantly alter the effective lever tooth count increases.2 While this solution is not available arms or the recoils. A final center distance adjustment to once the clock has been made, it is important to note that equalize the exit drops will complete the adjustments. The equalizing the recoils on escapements with 50 or more teeth escapement will now be in first class running order. is much easier than equalizing the recoils on clocks with only Up to this point only clocks with complete escape­ 30 escape wheel teeth. Some clock manufacturers, as well ments have been dealt with. The final installment in this as repairmen, have had some success with slightly increasing series will cover the procedure for installing one of the com­ the angle of incidence on the entry pallet to ease the entry mercially available replacement verges. This procedure is recoil. It must be remembered that this compromises the designed to enable the clockmaker to insure that the new original values of the lever arm ratios. In spite of this, it verge will be technically correct in operation. appears to correct more isochronal problems than it creates. This method is most successfully applied as a corrective STigner, James L., "Inside the Clock Shop". Horological Times, AWI Press: Cincinnati, Ohio. December 1977. Pg. 13. March 1987/Horological Times 37 Classified Ads

CUSTOM BALANCE STAFFS cut and fitted. CLOCKS: gearcutting, retoothing, repivoting, REGULATIONS AND RATES Since 1922. James Bourne, CMW, P.O. Box rebushing, jeweling. REPAIRING: Chrono­ Ads are payable in advance $.50 per 215, Ladysmith, WI 54848. Phone (715) 532- graphs/timers, fusees, aircraft clocks, antique word, $.60 per word in bold type. Ads 3166. clocks/pocket watches. Send sample for es­ are not commissionable or discount­ timate, SASE.-NIEGELS HOROLOGY, Roy able. The publisher reserves the right Niegel, CMC, CMW, 101 E. St. Joe Drive, Spirit to edit all copy. Price lists of services CUTTERS cycloidal for clock wheels and pin­ Lake, ID 83869. (208) 623-4330. will not be accepted. Confidential ads ions. Module 0.2 to 1.0. Constant profile pro­ are $4.00 additional for postage and ducing traditional square bottomed teeth, handling. Classified Display Ads are 104 sizes. Escape cutters: recoil (set of seven MUSIC BOX PARTS & REPAIRS-We repair $25 per column inch. The first of the sizes), dead beat (set of four sizes). Ratchets month is issue date. Copy must be re­ THORENS & REUGE. Music Box Repair 60° and 70°. All cutters made in 8% cobalt M42 ceived 30 days in advance (e.g. February Center, 412B M:ilii Street, Avon-By-The-Sea, High Speed Steel, and heat treated under vac­ issue closes for copy on January 1). NJ 07717. cum. Also cutter grinding wheels, Grit and CBN. Horological Times Send for Information Sheet, prices and order P.O. Box 11011 forms to: P.P. Thornton (Successors), Ltd., 3700 Harrison Avenue Horological Cutter Makers, The Old Bakehouse, Cincinnati, OH 45211 Upper Tysoe, Warwickshire, CV35 OTR, Eng­ (513) 661-3838 FOR SALE land.

400 DAY DOMES: 5Yi'' x 11" glass, $7 .50 each, or 4 for $26, UPS included. For price Clock Wheels and Pinions made to your sample list of 35 other glass and plastic domes, send or my calculations. Pivots, teeth, missing wheel SASE to: C.A. Zimmerman, P.O . Box 8973, jobs. C. Lewis Pritchard, CMC, Cumberland TRADESMEN Ft. Collins, CO 80525. Clock , RR 6, Box 497, Crossville, TN 38555.

Wheels, pinions, barrels, or whatever, repaired KUNDO AND SCHATZ PARTS mechanical, or made new. Repivoting of arbors. Cylinder Clock Wheel Cutters Resharpened. One Day electronic, and quartz. Try us! Baltimore Clock escapements restaffed. Write for shipping in­ Service. Contact us for prices. John Wincn, Parts, 2004 Hillside Drive, Baltimore, MD structions. Ken Leeseberg, RR 4, Box 286, CMC, CMBHI, P.O. Box 427, Sonoita, AZ 21207. P.O. Box 447, Montello, WI 5 3949. 85 637. BE ALL THE CLOCKMAKER YOU CAN BE! S.A.S.E. For New Tool Flyer. Ken Law, CMC, CLOCK MOVEMENTS rebushed & pivots re­ CMBHI, H.C. 30, Box 825, Prescott, Ariz., NEW SWISS QUARTZ MOVEMENTS CUSTOM finished. Same day service. Free UPS, factory 86301. FITTED to Diamond, Gold, Antique, Senti­ authorized. Two-year warranty. Butterworth mental Watches and Pocket-all sizes. Rolex, Clock Repair, 1715 Pearlview Ct., Muscatine, Omega, Longines, Lecoultre, Girard Perregaux, IA 52761. (319) 263-6759. CLOCK TIMER.Regulate your clocks electron­ Bulova, Elgin, Gruen, Accutron, Hamilton, ically with the new CTI Clock Timer. Can be Movado. Service and Quartz Conversion. used on almost any clock with mechanical es­ ALFONSO ZAMORA, 280 Presidio Place, Ralph Geiger, CMW, CMC, CEWS, CMBHI. capement. Pendulum clocks large and small, Buffalo, New York 14221; (716) 633-6138. Maker of fine hand finished components for lever or cylinder escapements, anniversary fine hand finished watches and clocks. Spe­ clocks, etc. For information write: Can Tho cializing in carriage clocks and fusee watches. Instruments, P.O. Box 80113, San Diego, CA CLOCK and MUSIC BOX parts, mainsprings, 8105 Valley Farms Trail, Indianapolis, IN 92138. material and tools. Custom made to order or 46214. repair of gears, pinions and parts. Catalog $2.00. TANI ENGINEERING, Box 338, At­ PLAN AHEAD, THINK FLORIDA. Well es­ water, OH 44201. (216) 947-2268. tablished clock repair business for sale in late CLOCK WHEEL AND 1987. Favorable lease available. Easily expand­ PINION CUTTING able. Good trade location. Owner retiring. PAT'S PEARL & BEAD RESTRINGING. Mid thirties. The Clock Doc, 36 Arlington Rd. REASONABLE PRICE, QUALITY WORK. Fast service - Write for free Brochure S., Jacksonville, FL 32216. (904) 724-1930. FAST SERVICE. PATTY McCLORY, 120 and price list. Fendleys, 2535 Himes CENTER ST., CRESTLINE, OHIO 44827. St., Irving, TX 75060. (214) 986-7698. PHONE (419) 683-3739. PARTS AND SERVICE HEADQUARTERS FOR SCHATZ, KUNDO, KOMA, KERN, HAL­ LER, HERMLE, NISSHINDO. MECHANICAL­ QUARTZ-ELECTRONIC-CIRCUIT BOARDS­ CLOCK GEAR CUTTING to your sample. DIAL REFINISHING CO. FAST SERVICE, MAINSPRINGS- SUSPENSION SPRINGS-and Reasonable, fast, and honest. COUNTRY FINEST QUALITY, quantity works welcome. MOVEMENTS, ETC. GREENHILL CLOCK CLOCK SHOP, 904 E. Washington, El Cajon, Specialize on changing dial feet positions to fit SERVICE, P.O. Box 2247, El Cajon, CA 92021. CA 92020; (619) 442-0123. the quartz movement. Send your works to: KIRK DIAL OF SEATTLE, 4th & Pike Bldg., Suite 625, Seattle, WA 98101. (206) 623-2452. Complete 1977 through September 1986 Horological Times magazines. All clean copies. ELECTRONIC EQUIPMENT SERVICE (tf) $65 .00 plus shipping. Simon, 2232 42nd SE., WE ARE FACTORY AUTHORIZED SERVICE FOR : * VIBROGRAFIPORTESCAP #799, Salem, Oregon 97301. * TICK-0-PRINTIL&R WE SERVICE ALL MAKES OF ULTAASONl<.'S ANO OTHER WATCH RATE RECOR DEAS AND EQUIPMENT JACK PHILLIPS CLOCK GEAR CUTTING OR P.EPAIR to your ELECTRONIC INSTRUMENT SERVICE sample. Very reasonable rates, quality work 3 Swest Vibratory Finishers - 16# Capacity #2 LOWER ALCATRAZ PLACE, MILL VALLEY, CA 9.119111 FOR INFORMATION CALL (415) 388-9289 with fast service. Kazen & Son, 215 N. Shia., with pedestals. Used very little. (806) 863- Corunna, MI 48817. (517) 743-3431. 2272.

38 Horological Times/March 1987 POCKET WATCH COLLECTION. 18 pocket watches: 3 Hami!tons, 5 Illinois, 5 Walthams, WANTED 4 Elgins, 1 Sylvan Bros. Good to excellent con­ HELP WANTED dition, some covered cases, some 14 Kt. and We buy all types of 18 Kt., some GF. Must sell all of them. For Jewelers Scrap-Any condition. complete information on request: Box FS387, WATCHMAKER WANTED. Experienced only, for position in a central California guild store. Horological Times, 3700 Harrison Ave., P.O. $27.00 lb. Gold-filled Watchbands Box 110 ll, Cincinnati, OH 45 211. Knowledge of mechanicals, quartz, and Rolex $12.00 lb. Plated Watchbands required. Public contact required. Send resume $12.00 lb. Silver Watch Batteries and references to: Box HW2387, Horological Complete Watch Shop (no junk), replacement (Mixed acceptable-We sort free of Times, 3700 Harrison Ave., P.O . Box 11011, cost over $15,000. Package price $4,200. Call charge & we pay for mercury) Cincinnati, OH 4521 l . (209) 923-4049. $5.50 oz. G.F. Optical, Cases, etc. GOLD-95% of the market price HELP WANTED IN CALffORNIA. Female/ MINI QUARTZ MOVEMENTS. Guaranteed for 10K, 14K, etc. Male. Energetic, neat, honest. Very experienced lowest prices - as low as $2.30. 2-yr. guarantee. We buy filings, bench sweeps, filters in watch crystals, hands, crowns. Mail informa­ Large selection of hands and numerals. Free and buffing waste. tion: W.R.C., P.O. Box 2404, Costa Mesa, CA delivery. SASE or call (704) 333-0221. Hall 92626. Clock Shop, 1512 Central Ave., Charlotte, NC 28205. Please call or write for more information: SPECIAL TY METALS REFINING CO HOROLOGIST. Large clock manufacturer seeks experienced horologist for its Manufacturing 10 Bay St., Dept. 10722 Engineering Department. Must be knowledge­ MAINSPRING LUBRICANT-Superior to any­ Westport, CT 06880 able in all phases of clock manufacture and re­ thing available anywhere. No more comebacks pair. Salary commensurate with experience. for short run times. $9 .98/4 oz., plus $1.50 1(800) 426-2344 Send work and salary history to: Box HW 1387 , shipping & handling. KA ZEN & SON, 215 In Connecticut call (203) 372-0481. Horological Times, 3700 Harrison Ave., P.O . N. Shia., Corunna, MI 48817. "We will match any offer and still Box 11011, Cincinnati, OH 45211. An Equal give you our quick, dependable Opportunity Employer (M/F). Central Florida Clock and Watch Shop. Retail service." sales and repair. Only shop in county of 150,000 Postage and UPS reimbursed. WATCHMAKER-Expert in Jeweled, Quartz, +. Shopping center location. Excellent lease. Es­ Analog, and Accutron for Employment in tablished 11 years. Plenty of good repair. Toledo Headquarters of National Corporation. Reasonably priced. Serious inquiries only Respond to: Personnel, P.O. Box 973, Toledo, please. OCALA CLOCK SHOP, 3327 E. Silver Springs Blvd., Ocala, FL 32670. (904) 622- OH 43696. 7986. AVON. WATCHMAKER-Expert in jeweled quartz, Your Ledger Knows analog, and Accutron, for employment in The Difference. Avondale, Arizona-18 miles west of Phoenix. Contact: Tom Baggett at Bulfer Jewelry Store, WANTED TO :BUY • We buy filings, polishing and 513 W. Western, Avondale, Arizona 85 323. buffing waste; watchmakers' Countershaft and 3 or 4 jaw adjustable chucks tools, equipment and material for Levin WW. 10 mm collets for Levin lathe. systems; all types of jewelers' Levin milting attachment. Bill Broad, 1206 N.E . 75th Ave., Portland, OR 97213; 254-1432. scrap - any condition SITIJA TIONS • $93.00/lb gold filled WANTED watchbands CRAFTSMAN-AUSTRIAN-TRAINED. Watch WANTED TO BUY-Will buy out your inven­ • $29.00/lb plated watchbands and clockmaker (technician) seeks goo9. posi­ tories of quartz watch movements, no matter • $1 3.60/ oz gold filled optical, tion in rtorida or warm climated state. Will­ how big or small. Call Larry (714) 250-1291. ing to buy out store in a few years, if owner cases desires to retire. Qualified from antique clock • Gold - 94% of the market to quartz watches. Please contact: Helmut Reitbauer, P.O. Box 8826, Humacao, Puerto IMMEDIATE CASH PAID for Gold, Silver, price Platinum, any form! Jewelry scrap, filings, Rico 00661; (809) 85 2-37 39. gold filled, sterling! Immediate top dollar cash • Cash or Check offer return mail! Satisfaction guaranteed. Ship insured/registered mail to: American Metals Over 20 years of buying scrap Co., 253 King St., Charleston, SC 29401. Call or write for more information (803) 722-207 3. SCHOOLS AVON METAL Correspondence courses in Quartz-Accutron VINTAGE WRISTWATCHES-Patek Philippe, l?b A*t•.aewga -Watchmaking-Jewelry-Lost Wax Casting­ LIMITED Vacheron Constantin, Rolex, Cartier, Aude­ and Rubber Mold Making. Free folders. Watch­ mars, Movado, Longines, Gruen, Curvex, Any (414) 351-0933 making Institute of Canada, 1012 Mt. Royal St. Gold or Silver Chronographs with enamel dials. P.O. Box 17484 East, Montreal, H2J 1X6; (514) 523-7623. Also buying large lots of G.F. Watches. Call Milwaukee, WI 53217 Paul at: (617) 256-5966.

March 1987/Horological Times 39 Horological Times 10-Year Technical Index 1977-1986

NOTE: INDEX INFORMATION IS LISTED IN THE FOLLOWING SEQUENCE: 1. Year of issue; 2. Monthy issue date; and 3. Page number on which item begins in that issue. i.e.: 86-3-32 indicates that the item can be found in 1986, March issue, on page 32.

A Abbott, Henry G.-author. annealing, 80-1-34, 86-12-18 kinetic energy, 79-3-34 capacitY, 77-2-33, 77-3-40, 77-5-35 "Watch Factories of America" anniversary clock, 81-1-52 pivots, 78-1 -26 clamps, 86-3-18 Book Review, 82-4-47 Ansonia poise-static, 79-5-24 diagram, 83-6·14 action musical clock, 83-1-29 chime, 86-6-16, 86-8-22 regulation, 79-1-20 energy consumption charts, 78-2-40, 78-3-12 Adamson, George H., 81-4-20 long dropped hour strike, 78-12-22 roller table, 79-9-44 installing, 86-4-24 Adamson, Thomas, 81-4-20 swinging clocks, 77-9-14, 78-5-34 screw, 78-4-14 life of, 78-2-39, 78-3-10 Accutron, 85-3-32 wall clock, 77·1·12 staff, 79-5-6, 79-5-16, 83-9-8, 83-10-10, replacement excessive noise, 79-7-22 anthracite coal clock, 80-9-34 84-4-12, 84-8-14 see BATTERY REPLACEMENT indexing, 79-11-18 Antique English 30-hour staff pivots, 77-7-18 voltage variation, 77-1-18 test equipment, 85-10-28 longcase clock, 77-6-16 staff, replacing, 80-7-40, 80-8-32 battery ingestion hotline, 85-9-34 tools for, 79-5-14 antique watch, determining age, 78-4-44 balance staffs Battery Number System (BNS), 82-8-6, 83-6-15 214, 79-5-14, 79-12-41 antique watch restoration fitting, 77 -3-8 battery replacement, 79-6-40, 83-2·30, 83-6-14, 214, hatch springs, 80-2-32 see RESTORATION grinding, 83-10-10 84-11 -20 218-219, 79-7-22 anvil, 82-1-16, 82-2-12 making, 79-5-6, 79-5-16, 83-9-8, 83-10-10 A.S. 536.121, 84-7-23, 84-8-35 218, tightening center wheel, 81-5-57 apostle-bridal-astronomical clock, 82-4·26 polishing, 83-10-10 Bulova 2500. 84-5-32, 84-6-30, 84-ll-34 221, 79-5-14 apostolic clock, 84-3-20 removal, 84·4-12, 84-8-14 Bulova 2750, 84-5-32, 84-6-30, 84-8-34 adapter Appleton Tracy watch, 83-7-18 Waltham 1883 and 1877, 84-6-20 Bulova 2783.10, 84-7-23. 84-8-35 current consumption, 77-9-24, 82-8-12 appraisals, 80-8-51 balance wheel Citizen 3N20, 84-7-22, 84-8-35 "Adjustments to Positions, lsochronism and emotion, 84·1·26 adjustments, 81-1-16, 81-2-20 Citizen 4800-02A, 84-7-22, 84-8-35 Compensation'' evaluating watches, 84-5-28 bi-metallic, 81-4-36, 81-5-38 ESA 551.111, 84-5-33, 84-6·30, 84-8-35 Book Review, 80-9-21 stones, 84-7-30, 84-8·30 electronic, 81-1-10 ESA 927.001, 84-8-34 admiral pocket watch, 80-7-30 summary, 84-9-20 floating, 81 -11-26 ESA 928.411, 84-8-34 advertising clock, 79-4-16 taking on, 83-11-30, 83-12-18 meantime, 81-6-8 ESA 944.121, 84-8-34 Agassiz Watch Company, 82-7-12, 84-5-10 using instruments, 84-3-22, 84-4-32 movement, 78-2-32 ESA 947.111, 84-ll-34 agihy, in a quartz watch, 77-1-16 aquamarine, 85-3-6 out-of-poise, 77-1-35 ESA 951 .111, 84-8-34 alcohol. 85-12-22 arbor poising, 80· 10-8, 84-4-28 ESA 963, 84-8-34 alexandrite, 85-6-15 annealing, 77-8-43 replating, 79-12-41 ETA 924.001, 84-ll-34 "Almost Everything You Wanted to Know barrel, 77-8-43, 79-5-54 scrawless, 86-2-34 FHF 102.001, 84-5-33, 84-ll-35 About American Watches and Didn't broken, 83-5-5. static poising, 79-5-24 PUW 512, 84-6-31, 84-8-35 Know Who to Ask" center, 79-10-22 transistorized, 78-2-32 Ricoh 5650, 84-6-31, 84-8-35 by George E. Townsend chuck, 81-12-8 truing, 80-9 -6 Seiko 99 Series B, 84-7-22, 84-8-35 Book Review. 83-12-5 hardened, 86-12-18 Ballou, George H., 81-4-21 Se;ko H239A, 84-7-22, 84-8-35 aluminum watch, 82-9-34 pallet, 86-2-24 Ball Watch Co., 77-8-27 Y480A (SPD), 84-7-23, 84-ll-35 "American Clock-A Comprehensive Pictorial straightening, 81-8-42 Banbery, Alan- co-author Y591A (SPD) , 84-7-23, 84-8·35 Survey 1723-1900, The" winding, 79-1-6 "Patek Philippe Geneve" Battison, Edwin A.- co-author by William H . Distin and Robert Bishop arboring, pallet, 82-12-44 Book Review, 82-11-42 'The American Clock 1725-1865" Book Review, 77-6-44 Ardmillan, ard-Maolain, 79-3-37 B&D Book Review, 81-7-41 "American Clock 1725-1865, The" Arnold, John, 80-1 -42, 80-2-25 clock, 85·9·41 beading tool, 82-7-22 by Edwin A. Battison and Patricia E. Kane "Art of Time, The" importers, 85-9-41 beads, replacing and tipping, 80-3·14 Book Review, 81-7-41 by Theodore R. Crom band fitting, 86-12-34 bearings "American Clocks for the Collector" Book Review, 85-2-12 bands (watch) clock, 82-11-35 by E.J. Tyler AS fitting, 83-4-30, 83-5-38 lapping, 82-10-14 Book Review, 82-7-41 536.121, 84-7-23, 84-8-35 flex, sizing, 78-10-36 beat "American Pocket and Wrist Watches Balance 1700 repair, 78-8-28 banjo clock amplifier, 84-7-28 Staffs Interchangeability List" 1902/03. 77.9.12 Howard and Davis, 77-12-20 determination, 77-12-10 by George E. Townsend Asprey and Co., 80-2-25 New England, 80-9-40 putting watch in, 84-2-26 Book Review, 85-7-31 astrolabe, 83-2-38 Waltham, 80-7-16 ship's chronometer, 79-1-34 ·•American Pocket Watches, Encyclopedia and astronomical clock, 79-5-22 "Banjo Timepiece: An In-depth Study of the Becker, Gustave Grande Sonnerie Vienna Price Guide" 100 year, 82-1-28 Weight Driven Banjo Clock" regulator, 86-3-30 by Roy Ehrhardt "A Time to Watch, A Watch as Art: Classic, by Chipman P. Fryeburg Beesely, R. & G, watch, 83-10-26 Book Review, 83-2-49 Rare, Extraordinary" Book Review, 79-2-30 beeswax, 82-7-23 "American Pocket Watches-Illinois Watch Co." by Jae Zagoory and Hilda Chan banking pins, 81-1-36, 84-10-30 "Beginners Guide to Antique Watches" Book Review, 86-8-25 by Roy Ehrhardt banking screws, 81-1-36 by Carl and Maria-Luise Sifakis Atmos clock, 78-4-36, 81-10-18 Book Review, 86-3-37 banks, 84-10-30 Book Review, 80-8-63 "Heritage" clock, 77-6-12 " American Pocket Watches-Updated and Barbichon, 79·3-12 Belin, Peter-author attachments, watch band, 83-4-30. 83-5- 38 Revised Evaluation Gutde, 1986 Edition" Barder, Richard C.- author .. Horology on the Half Shell A Monograph" Atwood, Seth-co·author by Cook59y Shugart and Tom Engel "The English Country Grandfather Clocks" Sooy Review, 85-9-32 "The Time Museum" Book Review, 86-12-29 Book Review, 83-9-15 bell Book Review, 84-7-41 "American Railroad Watches" Barlow, Hans-author clock, 80-8-42 Auger, Harold-co-author by George E, Townsend "The Repair of American Wood Geared standard, 80-2-48 "Skeleton Clock" Book Review, 78-4-39 Clock Movements" Belmont, Henry L.- author Book Review, 83-11-31 Am:orf=n !Sholl clock. 81·7·10 Book Reivew, 82-1-56 Book Reviews: Aurora Watch Co., 77-9-23 American Watch Co., 77-7-32, 83-12-16 Barrdet, C.S., 81 -4-21 "La Bulle - Clock Horologerie Electrique­ Automata clock, 78-10-22 "American Watchmaking- A Technical History barrel Ses createurs Son histo,;e, Brevets­ automation, 81-12-12 of the American Watch Industry, arbor. 79.5.54 hbrication - reparation" 77-1-42 aviator, German watch, 81-8·30 1850-1930" cover, 79-11 -52 "L'Esehappement a Cylindra" 85-8-31 by Michael C. Harrold fusee, 77-1-26, 77-2-18, 77-3-14, 77-11-21 bending, in jewelry repair, 86-11-22 Book Review, 85-3-28 motor, 83-3-32 Bentley, Eli, clockmaker, 86-7-7 American Watch Tool Co., 77-8-26 B riveted, 78-6·34 benzene, dangers, 81-1-34 amethyst, 80-2-52, 85-2-22 Bacchus clocks, 79-1-38 safety, 80-5-14 Bergeon 6200, shimming arms, 85-9-23 ammeter, 83-6-12 Badollet, J .M. and Co .• watches, 78·1-22 sealed, 78-6-34, 84-7-20 Berthoud, Ferdinand, 77-1-32, 78-8-6, 80-1-43 amperage, 82-4-32 Baird Clock Company, 79-4-16 tooth repair, 83-11-18 beryl consumption meter. 82-8-12 balance tooth, replacement, 78-2-12, 80·1·28 emerald, aquemarine, morganite and analog quartz amplitude, 79-6-38, 79-7-44 uprighting. 77-10-32, 77-11-16 heliodor. 80-5-42 quick tester. 85-8-44. 85-9-28 brackets, 77-1-30 bar setting, 86-4-38 "Best of J.E. Coleman: Clockmaker, The" repairing coils, 82-10-8 compensated, 77-3-14 barrel, motor, 86-8-14 edited by Orville R. Hagans testing, 82-6-12. 82-7-18 dynamic poi5f!, 84-4-28 Batchelder, J .W.-author Book Review, 79-10-55 Andrewes, William-co-author ETA 1220, 85-2-30 "Metric Madness" Beyeler, 79-5-28 "The Time Museum" floating/oscillating, 77-1-6, 77-2-14, 79-2-6, Book Review, 81-10-48 bezel, 85·1·23 Book Review, 84-7-41 79-3-34 battery, 79-6-14, 79-6-40, 79-7-6, 79-8-34, cutting, 79-3·16 Angelus 256, 77-5-16 gravity, 79-4-30 83-6-14 bezel jewels, setting, 79-1-8, 79-2-32, 79-3-24

40 Horological Times/March 1987 bezel setting, 86·5·34, 86-7-26 perchloroethykme, 81-5-13 time train, 78·7-22 bi-drive gearing, 77·7-25 safe and unsafe, 81-5-12 transportation (handling). 78-5-30 Big Ben, 77-3-5, 11·1·6 c tolulene, 81 -5-59 trials, 78-3 -26, 78-4-16 Billodes, Turkish, 80-11·14 Cajetan clock, 79-5-22 trichloroethane, 81·5-13 trip spring, 79-1-32 bimetallic calendar, ring clock, 79·10·48 trichloroethylene, 81-5-13 Waltham, 78-3-38 temperature adjustments, 81-5-38 calendar watch, 86-1·23 turpentine, 81-5-60 Ward, 81-8-57 watch balance, 81·4-36 calibration, timing machine, 78-5-18 xylene, 81-5-59 Weule, 81-8·58 binding wire, for pocket watches, 86-9-34 caliper, Vernier, 83-3-10, 83·11-21 Chenakal, Valentin L.-author White, 81-8-58 bipolar transistor, 77·2-33 Campani, night clock, 78-10-21 "Watchmakers and Clockmakers in Russia Willard, 81-9 -24 bird bottle clock, 79.7.54 " Cane Curiosa From Gun to Gadget" 1400 to 1850" windng, 78·5-31 birthstones by Catherine Dike Book Review, 78-9·48 Zonen, 81-8-51 alexandrite, 85-6-15 Book Review, 84-6-5 Cheshire Watch Co., 77-10-19 chronometer balance wheel amethyst, 85-2-22 cannon pinion, 79-2-8, 79-4·14, 81-5-57, chime cork (lock}. 78-5-32 aquamarine, 85-3-6 86·10·10 adjustment, 77-2-41 uncorking (releasing). 78-5-32 bloodstone, 85·3·6 adjustment, 77-3-53, 77-7-51 out of sequence, 77-1-7 chuck diamond, 854· 14 center arbor, 79-10-22 rods, 78-4· 1 O arbor, 81-12,8 emerald, 85·5·18 offset. 79·7·28. 82·4·35 tuning, 77·1-7 sub, 81·11-12 garnet, 85-1-8 removing/replacing, 84-10-12 Westminster, 77-1-6, 77·11-26 wire, 81-9-46, 81-10-8 moonstone, 85-6·14 split, 80-7-48 Chinese clock, 80-4·51 , 82·3-38 church clock, English, 78-12·26 opal, 85-10-16 taper pin, 79· 10-24 Chinese duplex escapement, 77-3-18 church tower clock, 79-4-48 pearl, 85-6-14 tightening, 77-3-53, 78-2-52 "Christopher Pinchbeck and His Family" circuit, integrated, 77-2-32 peridot, 85-8-29 capacitor, trimmer, 77·5-36 by Rita Shenton circuits, checking, 86-1-10 ruby, 85-7-28 tool, 83-11·29 Book Review, 77-9-51 Citizen sapphire, 85-9-26 cap jewel, 77-7-51 , 77-12·26, 79-1-31 chronograph, 80-4-24 3N20, 84·7·22, 84·8·35 sardonyx, 85-8-28 capping, 78-12-32 adjustments, 79-11-26 4800·02A, 84·7·22, 84-8·35 topaz, 85-11-28 Carrera, R.- author "jump seconds", 86-1-38 Citizen multitester, 85-12-32 tourmaline, 85-10·17 "Hours of Love" Landeron 189, 77-9-8 clamps turquoise, 85·12·25 Book Review, 77-10-51 Longines, 81-6·22 battery, 86-3-18 zircon, 85-12·24 carriage clock, French, 80-1-38, 80-3 -54 mechanism, 77-2-43 clock. 83·1·41 Bishop, Robert-CO•author cart spring, 85-2-26 recording drum, 78-3-32 cleaner, circuit board, 86-4-6 ''The American Clock-A Comprehensive case Seiko automatic, 82-1-43 cleaning Pictorial Survey 1723-1900" bow, 83-2-20 Seiko quartz setting, 86-8-8 case, 79.3.47 chronograph, 77-6-50 Book Review, 77·6-44 s/s hand, 79-2·8 clocks, 77-2-10, 77-3-30, 77-4-20, 77.9.34 cleaning, 85·7· 16 1 Black, Garret C., 81-1-44 trains, 86-1 -23 78-8·14. 79·4·6, 81·6·24 Black Forest clock, 77-8·24, 86-3-16 clock fit-up to quartz, 83-2-46 chronometer, 86-1-23 clock solutions, 78·7-10 "Black Forest Clocks" crowns, 79-8-39 Adamson, 81-4-20 electronic parts, 83-6-51 by E. John Tyler crystals, 83-6-28 adjusting, 79-2-16 expansion bands, 78-8-47 Book R..,low. 79·1·39 dents, 79-10·34 American makers, 80·11-38, 80-12· 18 index wheel, 79·11-18 Bliss, John Jr., 81-1-44 diamond watth, 79-1-14 balance development, 78-8-6 jewelry, 80-1-34, 84-1-12 Bliss, John Sr., 81-142 fluxing, 79-11·38 balance staff, 79-5·6 marble, 79-12-41 block, filing, 85-3-36 hinges, 79-10-30, 79·11-38 Ballou, 81-4-21 mountings, 86·7-32 bloodstone, 85-3-6 minor repairs, 79·10-30 Barrdet, 81-4-21 ship's chronometer, 78-10-12 blower, 81-11-20 Omega Cosmic 2000, 85·5-30 barrel arbor, 79-5·54 ultrasonic, clock, 81-6-24, 81-10·29 bluing, 86-1-15 opener, 77-7-20, 80-5-44 beat, 79-1-34 watch cases, 79-11-38 Blum, Harry H., 79-10-44 pendant pipes, 79-9-40 Black. 81·1·42 watches. 77·2-26, 78·4·22, 78· 12·15, Blundell, Thomas, 77-3-14 po,cket watch, 83-2·20, 86-9-34 Bliss, 81·1·42 86·3·33, 86·6·20 Blunt, E. and G.W. , 81-4-21 polishing, 79·12·20 Blunt, 81·4-21 cl;ck, 86·9· 15, 86·10·28, 86-11·14, 86-12·26 boiling point, metal, 82-1-26 quality, 79-8-17, 79-11-26 Bond, 81 ·3-42 springs, 84-11-6 bonding agents, 83-4-22 repeater, 77-12-16 break circuit, 79-8-48 threaded, 77-10·36 Bond, William, 80-11-40, 80-12-18 replacement, 79-3-15 Butler, 81-4-21 clips, test, 83-9 -20 book case action clock, 79-9-16 screwback pocket watch, 84-9-10 cleaning, 78-10-12 clip washers, 82-1-52 books on watch construction, 84-3-6 Seiko construction, 86-11-6 Creighton, 81 -1-42 clock Borel & Courvoisier watch, 84-7-31 servicing guidelines, 84-11-20, 85-1-28 Davenport, 81-4-21 action musical, 83-1-29 Borg clock, 86-8-14 sleeves, 83-2-20 Demilt, 81·4·21 advertising, 79·4-16 boric acid, 85-12-22 snap, 79-11·18 detent, 79·9·8, 79-10-40 American shelf, 81·7-12 Bourquin watch, 80-11 -14 snap-back, opening, 78-6-51 detent escapement, 77-3-42 Angelus 256, 77-5-16 bow soldering, 79-11 -38 Dillon, 81·4-21 anniversary, 81·1-52 antique, 79-8· 19 springs, 79-10-54 disassembling, 78-10-12 Ansonia, 78-5-34, 78-12-22, 81·7·10, repair, 83-2-20 vaccum, 86-2-10 Eggert, 81·3·44 86-6· 16, 86-8·22 Bowditch, Nathaniel, 80·7-51 watch, 79·7·16, 79·11-17, 79·9·40, 79-10-30 Ef'lglh h nscapem 11 nt ~ 79·3 --18 swinging, 77-9·14 bracelet, 86-12-34 79·11 ·38, 79·12·20 erratic rate, 79-4·38 wall, 77-1-12 brackets, balance, 77-1-30 watch lug, 83·1-26 Fellows, 81-4-55 anthracite coal, 80-9-34 brazing, 86-1-30 caseback opening/closing, 84-11-20 Forester, 81-4·55 Apostle-Bridal-Astronomical, 82-4-26 break circuit, ship's chronometer, 79-8-48 case, for carrying clocks, 81-1-8 Fox, 81-4·56 apostolic, 84-3-20 Breguet, Abraham Louis, 77-1-32, 80-1-38, casemark system, 83-11-18, 86-2-22 Frodsham, 81-3-42 astronomical, 79-5-22, 80-4-50, 82-1-28 80·2·26 case tube, 79-9·40, 82·12-34 functional description, 78-6-30, 78·7·22 Atmos, 78-4-36, 81-10-18 Breguette, Paul, 78·12-14 cementing, 85-11-8 fu aee cha1 nJ. 79 · 6~2 ' 'Heritage", 77-6-12 Breitling, 80-8-26 replacing, 77-10-53 Geissler, 81-4-56 atomic, 77-2-16 Brewster clock, 78-7-30 Casio symbols, 86·5·6 gimbal ring, 78-5 -33 Auto~te , 78-10·22 bridle, mainspring, 83-3-32, 834-32 cautions, jewelry repair, 80-11-12 Glover, 81-4-56 automobile, 81-1-34 Brigden, Charles, 78-9-21 cell Gray, 81 -4-56 Bacchus, 79-1-38 Briggs rotary pendulum clock, 79-9-18 see BATTERY hairspring, escapement, 78-9-24 B & 0 German tubular bell Bristol Watch Co., 81-7-31 Centennial Watch Co., 86-6-8 Hamilton, 78-1-16, 78-8-7, 80-4-18, grandfather, 85-9-41 Brocardo, G.-author center wheel 80-5·48. 80·6·10 beat tool, 84-7-28 "Minerals and Gemstones, an Identification repivot, 85· 1-33 Hamilton Comparator, 78-3-32 Becker, Gustave, 86-3-30 Guide" tightening 218 Accutron, 81-5-57 Hands, 81·4-56 bird bottle, 79-7-54 Book Review, 83·6-37 center wheels, antique Harrison, 78-1·18 Blodc Forest. 80.3-16 Brocot, Achilles, 81-5-20 restoring, 79-2·8 Heinrich, 81 -5 -30 cuckoo, 77-8·24 Brocot escapement Century watch, 82-1-22 helical spring, 78 -9-24 book case action, 79-9-16 adjusting, 78-4-6, 79-9-26 chain Hewitt, 81-5-41 Borg, 86-8-14 history of, 83·3·16, 83-4-26, 83-5-16 broken fusee, 86-9-34 history, 78-1-16, 78-2·8 boudoir, 81-6-52 fusee, 77-1-26, 77-2-26, 77-2-31, 79·1·31 83·7 ·34, 83-8·32. 83·9·28 Holzworth, 81 -5 -41 box, 84-2-8 problem with, 79-4-10 79·6·42, 83· 10·33 jewels, polishing, 79-4-38 bracket, 81-7-24 brushes, rust removal, 86-1-15 jewelry repair, 86-2-26 Kline, 81-5-41 Brewster, 78-7-30 Bruton, Eric-author ladder, 79-1·44 Kumer, 81-5 -61 Brewster and Ingraham combo, 78-7-30 Laine, 81 ·5-61 Book Reviews: threading, 83-5·40 Briggs rotary pendulum, 79-9·18 mainspring, 79-7-10 "The History of Clocks and Watches" chain drive clock, 83-5-20 Bulle, 77-1-42, 77-8-43 Chalice dial, 82-2·26 Manning, 81-6 -44 80·7-49 bushing, 77-6-22 marine, 80·3·36 .. The Longcase Clock" 78-5-35 Chan, Hilda- co.author Cajetan, 79-5 -22 Meeks, 81 -6-44 "The Wetherfield Collection of Clocks" " A Time to Watch, A Watch as Art: Clas.1ic calendar, 78-4-32 Monroe, 81-6·47 83·12·5 Rare, Estraordinary" calendar ring, 79-10-48 Book Review, 86-8-25 Montandow, 81-7-28 buffing, 82·9·20, 82·10·30 Campani night, 78-10-21 Naval Observatory, 78-2-10 Bulle clock, 77· 1·42, 77-8·43 ctu1nnol setting, 85·12·26 cart spring, 85-2-26 navigating, 78-2-8, 79-11-48, 79-12-26 Bulova Chelsea clock, 78-1-25 chain drive, 83-5-20 Negus, 81·2-16, 81-3-42 cal. 242. 83·2-44 clock material, 77-8-43 Ch11ice dial, 82-2-26 Oakes, 81·7-28 cal. 2500, 84-5 -32. 84-6·30. 84·8·34 escapement, 77 -2-30 Chelsea, 78-1-25 cal. 2750. 84·5·32, 84-6·30. 84-8·34 mantel clock, 77-11 -37 oiling, 78-11 -14, 78-12-16 mante l, 77·11-37 cal. 2783, 83-2·44 CheJsea filter, 82-6 -30 pocket. 80· 1-42 chime tool, 86·9-8 cal. 2783.10. 84·7·23, 84-8·35 chemicals Pollitzer, 81-7 -28 Chinese, 82-3 -38 11ALAC17J. automatic, 77-1-10 acetone, 81-5-59 Porter, 81·7 -28 Lust astronomical, 80-4-50 VC-10 cleaning machine, 77-2-26 ammonia, 81 ·5-60 Potter, 81-7-29 church tower, 79-4-48 Bulova test equipment benzene/benzine, 81-5-13, 81-5-60 quartz, 80·7-50, 80-8-10, 80-9 -46, 80-10-22 clamps, 83-1-41 Accutron, 85-10·28 carbon tetrachloride, 81-5-13 r.aro cu'IO un1uuo l ~ 80·2·24 cl eaning, 77-2-10, 77-3-30, 77-4-20, 77-9-34, variable power supply, 85-11·24 chloroform. 81 ·5-13 reasssmbly, 78-11-14, 78-12-16 79·4·6, 81·6·24 Buren, 82-12-22 ethyl alcohol, 81·5-59 Reed, 81 ·7·51 Clock of Texas, 81-3-24 burnishing, 82·9·20, 82-10-30, 85-7-6 freon, 81-5·60 regulation, 79-12-26 cock·crow, 80-5-16 burnishing tools, 82-7-24 hazardous, 86-2-16 R;ggs. 81-8·50 coffee table, 81-4-31 Burwood clock, 78-3-38 isopropyt alcohol, 81-5-59 Roth. 81·8·50 complicated, 79-9-16 bushing, 77-6·22, 85·2·29. 85·4·12. 85·5·34, L & R, 81·5·60 Seckel, 81-8·50 Congreve rolling ball, 82-3 -23 85·9·23. 86·4·27 lead, 81·5·13 setting, 78-5-31 converting spring to weight, 83-8-26 centering, 84-10-26, 84-12-39 mercury, 81-5 -13 starting, 78-5-30 crown-verge mantel, 79-11-44 methyl alcohol, 81-5-59 hour hand, 86~· 16 Stewart, 81·8-51 crucifix, 79-4-18 • methyl ethyl keytone, 81-5-60 bushing tools, 81~·10 testing, 79·2-16 cuckoo, 78-1-38, 84-9-18, 85·4-12 Butler, George E .• 81-4-21 methyl isobotyl keytone, 81·5-59 Time and Frequency, 81-10-24, 81·11 -28, C washers, 85-1-26 methylene chloride, 81-5-60 81 -12·26 Dance of Death, 82-2-26

March 1987/Horologica/ Times 41 docoralion of, 79-8·50 McClintock, 77-3-54, 77-11-22, 78-3-38 wire loop suspension, 79-1-24 Crom, Theodore A.-author dial (metal) touch-up, 84-5-38 minute striking, 78-4-32 wooden, 81-1-21 Book Reviews: Diana, 79-1-26 modern floor, 79-3-30 wooden movement, 78-5-37. 78-6-24, "Horological Shop Tools" 81-3-10 Dutch hood, 78-4-26 monk, French, 82-5-39 78-7-14, 78-8-24, 82-10-38 "The Art of Time" 85-2-12 Early Rising, 77-4-25 Morbier, 78-6-10, 81-11-16 wooden wheel, 78-9-12 ..-own Edwards, 77-2-36 musical, 78-7 -26 World Time Computer, 77-6-8 fitting, 79-9-40 8-day musie box, 79-3-36 zodiacaJ, 79-11-52 pusher, 86-1-24 F. Kroeber. 77-10-40 mystery, 86-1-6 ··crock and Watch Escapements" quartz, 86-11-20 French Count Wheel, one half hour Neuchatelese, 77-1-12 by W.J. Gazeley removal, 86-5-22 strike, 79-7-3'6 New England banjo 8-day, 80-9-40 Book Review, 82-12-24 restoring, 78-6-51 Scott~h longcase, 77-3-26, 77-4-16 New Haven, 80-2-36 clock bearings, pegging out, 82-11-35 threaded, 77-2-26 2-weight Vienna regulator, 79·4·20 bracket, 80-11-6 .. Clock Guide Identification with Prices" watch, 79..S-39. 82-9-30 elapsed time, 86-5-26, 86-7-12, 86-9-26, No. 95 mantel, 83-4-16 by Robert W. Miller crown-verge mantel clock, 79-11-44 86-11-24 rack striking movement, 84-6·12 Book Review, 86-11-39 crown wheel, tooth replacement, 82-3-34 electrical, 85-10-21 regulator, 82-3-16 "Clock Identification and Price Guide, Book 3" crucifix clock, 79-4-18 Engle's astronomical, 82-5-10 one wheel, 77-4-26, 78-9-20 by Roy Ehrhardt crutch balancing, 81-4-44, 81-9-51 English Parker, 86-9-6 Book Review, 84-1-33 cryptocrystalline quartz, 86-11-30 bell strike grandfather, 86-10-18, peculiarities. 78-7-30 "Clockmakers of Lancaster County and Their crystal, 77-12-16, 79-12-23 86-12-22 pin, 80-9-35 Clocks" altering, 78-7-35 Bracket, 2-chime antique, 79-8-45 pin wheel, 79-11-24 by Stacy B.C. Wood, Jr. and cement applicators, 80-8-30 grandfather, 78-5-26 pipe organ, 80-3-40 Stephen Kramer 111 fancy, 80-2-14 lantern, 82-11-30 pistol, 79-7-55 • Book Review, 78-7-42 fitting, 79-12-20, 86-7-17 longcase half-hour chime, 77-7-10 pivot restoration, 77-5.-20, 77.9.34 "Clock Making for the Woodworker, The" grinding, 78-6-20 one day verge fusee, 83-5-20 Plato, 77-11-38 by Wayne Louis Kader holder, 77-8-27 shelf, 78-7-12 pliers, 81-6-12 Book Review, 85-1-21 installation, Seiko, 85-1-28 skeleton, 77-11-20 Poole, 77-1-13 ··ciock Museums and Collections Visited by lifts. 80-1-48 30-hour longcase, 79-2-24, 79-10-16 Precision regulator, 78-4-30 E.J. Tyler 1971-1983" ltquid tritium, 78-2-16 30-hour longcase, antique, 77-6-16 quartz in a, 83-6-18 published by Watch and Clock Book Society measuring, 80-7 -30 w•ll (cloublo 1u,.0J, 78-9"8 rack, 81 ·12-14 Book Review, 84-12·5 odd-shaped watch, 77-2-30 escape wheels, 84-4-22 Raffaelli, 77-5-30 Clock of Texas, 81-3-24 oscillating, 83-1-32 Eureka, 83-1 -20, 83-3-6, 83-5-18 rare/unusual escapements, 77-12-22, 79-2-44 clock repairs, estimating, 84-5-22, 84-7-12 plastic fitting, 83-7-20 fisherm8n, 81-1-20 Rasmus Somes, 78-1-30 clock repair shop, managing, 81-4-24 pocket watch, 80-2-14 fly, 79-12-46 repair vs. restoration, 79-1-16 press, 80-1-50 Foggini, 77-5-30 repivoting, 77-7-26 .. Clocks and the Cosmos: Time in Western quartz, 77-5-35, 77-7-14, 78-7-18 Foliot, 16th century, 81-10-53 restoration, 79-1-16, 79-3-12 Life and Thought" quartz casing, 83-6-28 Fortress and Fort, 82-4-26 retrofitting quartz movements, 84-10-40 by Samuel L. Macey removing, 81-7-30 400·day, 86-2-10 rolling ball free pendulum, 81-8-44 Book Review, 80-12-6 softening epoxy, 84-3-34 French saw tooth, 78-3-36 "Clocks and Watches in Colour" tank, 77-1-10 bell-alarm, 84-1-20 Sctiatz Ship's Bell, 84-10-6 by A. Nichols and R. Good tension ring (sizing), 78-7-35 earriage, 80-1-38 Schwarzwald;82-7-12 Book Review, 86-7-21 watch case, 80-1-46. 80-2-14 8-day carriage, 80-3-54 Scottish longcase, 80-5-19 "Clocks: Construction, Maintenance and Repair" c1yst0Jll nei quva., 86·9-22 escapement, 78-2-24 Selfridge's Wonder, 82-7-26 by Frank W. Coggins crystal systems, 86-5-32 mantel, 78-11-20 Self Winding, 83-2-32 Book Review, 84-9-30 Cubic Zirconia. 79-9-28, 79-10-8 rack striking movement, 83-12-8, 84-8-28 SeS$ions chime. 82-4-12 "Clocks of Shenandoah. The" cuc;koo clock, 85-4-12 by Philip Whitney skeleton, 78-7-26 Sessions Westminster, 77-10-26 Black Forest, 77-8-24 Book Review, 86-3-37 Friesland, 78-4-26 Seth Thomas, 86-12..S escapement repair, 84-9-18 clock tools Furtwangen, 86-3-16 electric chime, 85-4-23 fusee, 78· 10-30 anvils, 82-1-16, 82-2-12 fusee cuckoo, 78-10-30 grandfather, 80-9-26 Standard 30-hour, 82-7-32 punches, 82-1-16, 82-2-12 Gebhard, 78-6-13 hour strike, 78-10-32 30-hour modern musical, 77-12·6. 78-1-38 stakes, 82-1-16, 82-2-12 German mantel strike, 77-5-42 Cuff, Velcro, 77-8-31 stumps, 82-1-16, 82-2-12 chime, 79-2-14, 84-8-28 No. 89 movement, 83-10-6 cup burrs, 82-7-22 clock weights, 78-10-20 drum table, 79-2-45 No. 113 movement, 82-6-8 eunant co°'umptian wall, 84-2-8 No. 120 movement, 83-8-10 '"Clock Workshop, Volume I, The" adaptor, making an, 77-9-24 Gilbert, 78-7-31, 86-9-29 No. 124 movement, 79-12-10 Book Review, 85-1-21 measuring, 82-8-12 clutch lever, 86-9-14 calendar, 81-5-16 No. 124 Westminster, 85-1-10 meter accessory, 84-11-41 repositioning a, 77-9-54 mantel, 78-7-31 pillar and scroll top, 82-3-12, 82-4-22, Currier, D.G., 79-1-30 cock-crow clock, 80-5-16 movement, 85-11-6 82-5-30 customers, keeping, 86-8-34 wall regulator, 8-day, 83-7-12 selfwinder, 82-11-8, 82-12-30 coffin watches and clocks, 79-7-54 Cutmore, N.-author Coggins, Frank W.-author Globe chime, 80-12-14 Ship's Bell, 78-10-10 "The Watch Collector's Handbook" grandmother, 79-9-30 30-hour OG , 84-4-8 .. Clocks: Construction, Maintenance and Book Review, 77-12-27 Greeian mantel, 77-9-8 Ship's Bell, 82-1-8 Repair" cutter, gear, 77-1-51 Book Review, 84-9-30 ··groaner", 84-1-31 silent, 84-7-6 cutters, lathe, 82-8-22 Guardson time recorder, 84-6-33 SHgh, 84-11-14, 85-4-8, 85-8-10, 85-8-18 coil C washers:, 85-1-26 Guinness replica, 81-2-50 Smallwood (multiple dial), 78-5-8 analog, repairing, 82-10-8 cylinder, 82-6-26 Gustave Becker 400-day, 78-8-14 Sonora chime, 78-3-34, 80-4-44, 84-9-10 checking, 86-1-10 cylinder escapement, 77-2-18, 81-5-8. 81-6-34, hairspring, 85-7-22 staffing, 85-2-18 grounded, 85-8-40 81-7-16 Heidelberg astronomical, 82-6-34 stakes, stumps, punches and anvils, 82-1-16, saver, 82-6-32 cylinder staffs, 84-9-12 Hermie, 80-6-42 82-2-22 testing, 81-8-56, 85-5-28, 85-10-31 cylinder VPH, 77-6-49 Black Forest, 80-6-46 Standard 30-hour cuckoo, 82-7-32 coil tester, making, 85-10-31 CzechOslovakian clock, 82-10-22 Ship's Bell No. 132-071, 84-12-8 straw, 80-8-57 Coleman, J.E., 79-12-36 Herschede, 86-3-30, 86-6-14 Swedish Cathedral, 79-8-6 collage, 78-1-22 chime, 78-8-14 Synchronome electric, 82-5-12 .. Collecting and Identifying Old Watches" tubular bell, 80-8-14 table, 78-4-34 D by H.G. Harris Dance of Death clock, 82-2-26 tubular-gong Westminster, 77-8-40 teeth, 82-3-34 Book Review, 82-3-56 Daniele, Joseph-author hole closing, 77-6-22 Tennessee sour mash, 79-12-36 eollet, verge watch, 85-7-22 "How to Build 35 Great Clocks" hori:i:ontal table alarm, 79-2-44 thatched, 82-7-26 Colonie! Mfg. Co., 85-2-8 housewife, 80-8-57 Book Review, 85-3-28 30-hour Columbus Tiine King watch, 83-3-8 Howard and Davis regulator, 77-12-20 Daniels, George, 79-2-14 English longcase-unusual strike, 79-10-16 Columbus Watch Co .• 77-9-20 Daniels, George-author Howard grandfather, 83-9-18 modern musical cuckoo, 77-12-6 comebacks, 77-2-4, 82-8-26 Book Reviews: Howard Miller Co., 85-1-18 three-train quarter-strike, 79-6-20 compensated balance, 77-3-14 "Watches and Clocks in the Sir David Howard tower, 77-5-16 tick.less, 84-7-6 "Complete British Clocks" Salomons Collection" 85-9-33" IBM, 86·3-16, 86-8-6 Tiffany Neverwind, 77-5-30, 79-6-6 by Brian Loomes "Watchmaking" 82-2-45 ldla·Tyme, 78-3-16 timers, 84-8-29 Book Review, 81-4-6 Daniels solution, 77-2-10, 77-3·30, n.9.34 lgnatz, 81-12-18 toilet seat, 80-8-57 ··complete Guide to American Pocket Davenport, William, 81-4-21 Ingraham, 78-7-30 tortoi5e$hell, 81-7-24 Watch81, The" Dawes, Thomas, 83-1-18 8-day, 83-7-33 tower, 79-12-19, 81-9-14 by Cooksey Shugart dead beat pallet, replacing, 81-4-32 ssc2 hour strike, 83-12-20 treasure of sea, 82-3-14 Book Review, 82-8-45 deCarle, Donald, 77-1-21 strike, 83-2-12, 84-1-16 tree branch, 81-4-31 '"Complete Guide to American Pocket Ithaca calendar, 78..S-20, 80-1-28 tree trunk, 80-11-24 deCarle, Donald-author Watches, The" Book Reviews: Jacques dual chime grandfather, 85-10-8, trumpeter, 80-3-40 by Cooksey Shugart and Tom Engle "Watches and Their Value" 80-9-20 85-12-8 Tubular bell chime, 85-2-8 Book Reviews, 83-5-41, 85-6-18 "Watchmaker's and Model Engineer's Lathe, Japanese temple, 78-2-26 turning, 79-6-12 complicated clock, 79-9-16 Jauch chime, 82-12-18 turret, 86-6-26 A User's Manual, The" 86-1-38 complicated watches, 85-11-18, 86-1-22 Delta 81, 83-7-41 Jefferson Golden Hour electric, 79-5-36 ultrasonics, 77-2-10 Computer, World Time, 77-6-6 Demilt, Benjamin and Samuel, 81-4-21 jeweler regulator, 84-12-12 unusual, 81-1-20 condensation, 85-3-22 John Muir's, 77-4-24 Urgos, 82-8-16 Dent, Edward J., 78-8-6 Congreve rolling ball clock, 82-3-22 dents, watch cases, 79-10-34 Keebler Lux, 77-2-27 Urgos 9 tubular bell, 86-2-6, 86-4-20 constant force escapement, 78-1-32 depthing tool, making, 85-3-12 Keys, 77-8-27 Vienna regulator, 3-weight, 83-9·16 consumption, 84-11-41 Derham, William, 80-2-25 Kieninger chime movement, 85-4-8, 85-6-10 violin, 80-8-56 current measuring, 78-9-30 Kieninger and Obergfell 400-day, 78-10-42. wagon wheel, 80-11-24 "Designing and Building a Grandfather Clock" Continental Watch Co., 78-1-22,79-8-20 by Gary Williams 78-11-8 Waltham, 86-7-8 continuity, 82-3-27, 86-2-12 Book Review, 83-5-36 Kienzel wall, 79-7-22 banjo, 80-7-16 corwersion, spring to weight clock, 83-8-26 kinetic sculpture, 81-4-30 8-day. 77-2-27, 83-7-41 " Daskbook of Business Management Terms, A" convenible, Elgin, 79-10.-20 by Leon A. Wortman Kundo Standard, 79-1-26 water, 79-1-42 Cornioley, F., watch. 77-10-30 Leeuwen alarm, 79-7-30 Waterbury Book Review, 82-2-50 corundum, 80-12-46 detached lever escapement, 80-11-34, 80-12-8, Lenzkirch, 84-4-27 double-deck, 82-10-18 synthetic, 81-1-24 lever, 81-5-10 81-1-36, 81-2-8, 81-3-36, 81-4-8 half-hour strike, 77-2-40 Co1mic 2000 cases, Omega, 85-5-30 Louis XIV, 81-10-13 water wheel, 79-6-24 bank-to-drop, 81-3-36 counterbores, 79-7-24 Elgin method, 81-2·8 mainspring winder, 79-1-6 Wenzel air, 78-8-16 counter, golf, 83-3-8 Marsh, Oliver 8 ,, 81-11-36 Western Union, 77-7-18 detent countersink, 82-1-52 antique watch, 86-9-16 Martin Hall, 79-10-20 Westminster count wheel, 80-6-32 Mauthe chime, 77-1-6 English. 79-3-18 French 8-day, 79-7-36 ship's chronometer, 79-9-8, 79-10-40 B-day, 77-7-22 chime mantel, 81-12-18 crank roller, 77-3-17 wsoo. 80-10-10 Winterhalder chime movement, 85-8-18 spring, 79-3-18 Creighton, Frederick, 81-1-42 spring loaded, 78·1·54

42 Horological Times/March 1987 deWelke, Christian, 79·2·45 principles of operation. 86-7-12 dead beat. 77-1-21. 78-3-22. 78-9·26. finials, 77-11-39, 78-3-41 dial, 85-9.S Eldorado watch, 83-2-32 78-10-6. 78-11-22. 78·12-8. 81-3-36. finishes centering on movement, 84-6·39, 84·9·16 "Electric Clocks and Chimes" 81-4-8. 81-4-32 high polish, 86-8-18 electronic watches, 84-7-20 Booli!. RO¥ DW, 81""4..S design problems, 79-8-22 jewelry repair, 85-9-16 enameled, 84-2·12 electricity detached lever, 77-3-14, 80·11-34, 80· 12-8, matte, 77-9-10 foot, 86-9-8 amperage, 82-4-32 81-1·36. 81·2·8. 81-3-36, 81 -4-8 matte and grey frosted, 86-8-18 foot adjustment, 78-6-51 analogy to water flow, 83-8-30 draw, 85-2-16 straight line or satin, 86-8-18 metal clock, restoring, 84-5-38 clock, 85-10-21 duplex, 77-2·21, 81-3-38, 81-4-42, 81-5-26 fisherman clock, 81-1-20 numeration, 78-11-10 resistance, 82-3-26 English, 79-3-18 fishtail setting, 86·1·18 painting, 78-4-1 O static, 77-2-39, 77-8-30 ...1 ,.,.ting. 79-2-10. 79-2-20 flame, jewelry repair, 85-8-36 porcelain, restoring, 84-4-38 testing, 82-5-8 flip book. 77-4-28 flat springs, 86-6-22 refinishing, 78-3-47, 83-8-28, 84-4-38 voltage, 82·2·9 fork problems, 84-3-28 flexural mode quartz, 77-1-16 refinishing, machine, 83-10-33 "Electrical and Electronic Clocks and Watches" 400-day, 77·11-38 flip book, 77-4-28 removing name, 83-8-26 by J.O. Weaver four-legged gravity, 78-2-30 "flip-flop'' configuration, 77·2·33 stone (colored), 81-11-44 Book Review, 83-1-37 freak, 85-7-12 floating balance, 77-2-14, 81-11-26 watch, 80-5-36 electron flow, 82-5-8 French clock, 78-2-24 Foliot, 81-10-53 w·aich po;i1lonino, 86-3-8 electronic friction, 79-6-38, 79-7-45 floor clock, modern, 79-3-30 watch, repairing, 83-3-14 case buttons, 81-9-22, 81-10·36 Graham dead beat, 78-9-26 fluorescence, 82-7-30 wooden, 83-10-28 checks, 81-8-56 gravity, 78-2-30, 79-5-40 flux zone time, 83-11-22 meter, 78·9-30, 78-10·26 half-cylinijer, 78-1-50 solders, 84-5-12 dial protector, 85-2-34 set stem, 86-11-20 illuminating alarm, 78-1·34 watch cases, 79-1 1-38 diamantine, 85-3-19, 85-7-6 symbols, 86-5-6 improperly set roller jewel, 84-3-28 fluxing, 80-1-34, 85-5-22 diamonds, 79-8-56, 85-4-14 electronic parts, cleaning, 83-6-51 Japanese temple, 78-2-26 fly, 79-12·46 setting, 80-7-10 electronic terms glossary, 80-3-26, 80·4-26, Keebler Lux, 77-2-27 Foggini, Giovanni Battista, 77-5-30 substitutes, 79-9-28, 79-10.S 80-5-8, 80-6-16. 80-7-14 LaPaute pin wheel, 84-2-31 Foliot, 16th century clock, 81-10-53 diamond watch case. 79-1-14 tleetronlc- waich Litherland, 77-2-23 Ford collection, 78-11-11 diamond weight rule, 84-9-20 dials, 84-7-20 oiler, 78-10-37 Forester, John, 81-4-55 Djana clock, 79-1-26 repairing, 78-12-40 one pallet lever, silent, 78-2-22 Forget, Carl-author dichroscope, 82-6 -30, 84-4-33 testing current consumption, 84-11-41 pallet circled. 77-1-12 "Elsevier's Dictionary of Jewellry and "Dictionary of American Clocks and voltage, 84-11·41 pin lever, 81-4.S Watchmaking" Watchmakers, The" Elgin Watch Co., 80-8-36, 82-5-34 pin pallet, 78-4-6, 81-4-8 Book Review. 84-11-33 by Kenneth A. Sposato convertible, 79-10-20 pinwheel, 77-1-21 fork, problems, 77-8-16, 84-3-28 Book Review, 85-1-39 loose hairspring, 83-12-40 putting watch in beat, 84-2-26 Forrest, John, 78-9-14 die plate, 84-5-16 National Watch Co., 77-8-12 rack lever (rack and pinion), 77-2-21, Fortress and Fort clocks, 82-4-26 dies. 83-7-6, 86-5-16 "O" size, 79· 10·24 78-1-35 400-day clock, 78-8-14, 78-11·6, 82-5·36, "Digital Electronic Watch, The" screw taps, 86·4-28 recoil, 77-1-22, 77-2-40, 77-10-20, 77-11-6, 86-2-10 by Tom M. Hyltin timer, 79-10·24 77-12-12 Fox, Anhur C .• 81-4-56 Book Re11iew, 78-12-50 "Elsevier's Dictionary of Jewellry and Reynolds, E.K., 85-4·36 French digital troubleshooting, 61-2·24, 81-3-32 Watchmaking" roller table, 79-9-44 antique bow, 79-8-19 digital watch, 77·2·36 by Carl Forget slide, 84·1·34 bell-alarm clock, 84-1-20 display, 84-7-31 Book Review, 84-11-33 spring detent, 77-3-42, 78-9-25 bridge, 77-1-30 handling, 77-8-30 emerald, 85-5-18 star duplex, 78-1-32 clock bushing, 79-4-16 servicing, 77-6-18 enamel, chipped, 85-9-8 tools, 84-12-20 count wheel, one half hour strike, 79-7-36 static electricity, 77-2-39, 77-8-30 "Encyclopedie de Diderot et d' Alembert torque, 77-1 -23 crucifix clock, 79-4-18 test equipment, 77-8-30 . Horlogerie et Orfeverie" two-escape wheel lever, 77-12-23, 77-12-25 8-day carriage clock, 80-1-38, 80-3-54 Dike, Catherine-author published by Scriptar S.A. unusual, 77-2-18, 77-12-22 escapement, 78-2-24 "Cane Curiosa From Gun to Gadget" Book Review, 79-4-57 ••'9•. 77·1·26. 77-1-33, 77-1-35 mantel clQck, 78-11-20 Book Review, 84-6·5 endless rope and pulley clock, 77-11-36 Verite ball, 85-8-42 monk clock, 82-5-39 Dillon, Edward, 81-4-21 Engle Astronomic:al clock, 82-5·10 vertical rack , 78-2-24 rack striking movement, 83-12-8 Dillon, Thomas E., 81-4-55 Engle, Stephen 0., 82-5-10 escapement action skeleton clock, 78-4-26 dispersion, 82-5-49 Engle, Tom-co-author diagram, in slow motion, 77·4-28 friction jeweling, 79-4-22 Distin, William H.-co-author Book Reviews: escapement file, 85-7·9 friction jewels "The American Clock-A Comprehensive "American Pocket Watches-Updated and escape wheel replacing with staking tool, 85-3-8 Pictorial Survey 1723-1900" Revised Evaluation Guide, 1986 German ratchet tooth, 84-11·6 friction (watch), 79-6-38, 79-7-45 Book Review, 77-6-44 Edition" 86-12-29 repair, 84-4-22 Fried, Henry 8.-author Ditisheim, Paul, 80-2-28 "The Complete Guide to American Pocket truing, 85-11·39 ''Repairing Quartz Watches" "Dixie Cloclc:makers" Watches" 83-5-41. 85-6-18 "Essence of Clock Repair, The" Book Review, 84-1-27 by James W. Gibb$ English ball strike, 86-10-18, 86-12·22 by Sean C. Monk Friesland cJock, 78-4-26 Book Review, 79-11-55 English clock Book Review, 84-4-22 Fritts, Ch1rles Edgar, 86-7-24 draw, escapement, 85-2-16 bracket, 2-chime antique, 79-8-45 ETA Frodsham, Charles, 80-1-45, 80-2-56 drawplate, 82-7-22 church, 78-12·26 FHF 102.001, 84-5-33. 84-8-35 Frodsham, William J., 81-3-42 drift, in a quartz watch, 77-1-18 grandfather, 78-5-26 FHF 400-418, 77-9-44 Fryebur, Chipman P.-author driving weight, 82-12-22 horizontal table alarm, 79-2-44 Gabarit 11% ligne, 77-9-44 "Banjo Timepiece: An In-depth Study "drum" escapement (alarm clock), 77-12-22 Lantern, 82-11 ·30 924.001. 84-8-34 of the Weight Driven Banjo Clock" drum table, German, 79-2-45 longcase, antique 30-hour, 77-6-16 956 Flatline, 83-12-40 Book Review, 79-2-30 dryer, jewelry, 85-11·32 longcase, half-hour chime, 77-7-10 1220 balance, 85-2-30 Furtwangen clock, 86-3-16 Dudley watch, 78-5-24, 78-11-9 longcase, 30·hour, 79-2-24, 79-10-16 2782 . Lexon, 77-2-26 fusee, 77-2-18, 77-3-14, 81-6-48, 86·6-B Masonic, 77-5-18 Jongcase, unusual strike 30-hour, 79-10·16 2850. 2879, 77-9-44 86-7-22. 86-8-14. 96-9-29 Dudley, William W., 78-5-24 one-day verge fusee, 83-5-20 Eureka clock barrel, 77-1-26 Dueber-Hampden Watch Co., 77-10-18 shelf, 78-7-12 irtuoducd on, 83-1-20 ch•in, 77-1-26, 77-2-26, 77-11-21, 79-1-31, duplex, 86-8-14 skeleton, 77-11-20 maintenance, 83-3·6 79-6-42 duplex, English repeater, 82-9-18 wall, 78-9-8 summation, 83-5-18 chain, broken, 86-9-34 duplex escapement, 77-2-21, 81-3-38, 85-3-16 "English Country Grandfather Clocks, The" Evanson, Jno., 77-1-27 chain replacement, 77-1.1-21, 78-9-14, repairing, 81-4-42, 81-5-26 by Richard C. Barder "Evolution of Clockwork" 79·6-42. 81-6-48 watches. 81 ·5·20 Book Review, 83-9-15 by J. Drummon Robertson chain, twisted, 83-10-33 duplex, Waterbury, 77-5-18 English duplex watch, 82-9-18 Book Review, 78-3-49 cuckoo clock, 78-10-30 Dutch hood clock, 78-4-26 English fusee, 78-5-24 eyeglass repairs, 86-4-34 double, 78-9-8 Duval, Albert, watch, 80-1-28 English fusee watch, 86-11-8 English. 78-5-24 Duverdry and Bloquel, 83-4-14 "English Lantern Clocks" English verge, 82-9-18 dynamic poise, 77-1-34 by F .H.J. Hana R. & G. Beesley, 83-10-26 ten steps of, 77-1-35 Book Review, 80-8-63 releasing power, 85-8-16 Enicar Bidynator, 79-3-14 F restoring, 86-11-14, 86-12-26 epicycloidal gearing, 77-4-8. 77-5-8 Fahy watch case, 84-6-20 Walker, 78-5-24 epoxy fashion, Seth Thomas, 80-11-14 electrically conductive, 77-12-32 Fasoldt watch, 82-4-10 E Fasolot, Charles. 82-4-10 Early Rising clock, 77-4-25 removing, 80· 10-49, 84-3-34 Favre-Brandt, 83-10-39 Earnshaw, Thomas, 77-3-14. 80-1-56, 80·2·29 ESA fencing watch, 78-10-22 earrings, handcrafting, 85-11-20 551.111. 84-5-33. 84-6-30. 84-8·35 Farson, C.B.-author G Edwards and Co., 77-2-30 927.001. 84-8-34 "Tower Clock and How to Make It" Gebarit, 77-9-44 Edwards clock 77-2-36 928.411. 84-8-34 Book Review, 82-4-47 prago door clod<, 80-~ Eggert, Dominic, 81-3-44 944.121. 84-8-34 947.111. 84-8-34 FHF garnet, 85-1-8 - "E. Howard and Company Watches" Garnier, Paul, 80-1-38 by George E. Townsend 951.111. 84-8-34 102.001. 84-5-33. 84-8-35 gasket Book Review, 84-9-31 963. 84-8-34 400-418, 77-9-44 case, 80-4-28 Ehrhardt, Roy-author 9154-12 hour stopper, 77-5-31 field effect (LCDs). 77-4-13 installation, removal, selection, 80-5-44 Book Reviews: 9180-81-82-83. 77-2.f; Field Effect Transistor (FET), 77-2-33 lubricator, 83-7-40 "American Pocket Watches, Encyclopedia 9200, 77.f;-15. 77-8-26. 77-12·16. 79·7·22 files, 86-11-19 gassss, to use with 1orches, 86-12-30 and Price Guide" 83-2-49 escapement American pattern, 85-8-24 "American Pocket Watches-Illinois adjusting, 77-10-20, 81-12-38, 84-11 -32 care, 85-10-12 gas sources, soldering, 85-4-32 Watch Co." 86-3·37 banjo, 78-1-33 escapement, 85-7-9, 85-9-11 gate time, 83-6-24 "Clock Identification and Price Guide, banking, 84-10·30 hand, 85·7·9 gathering pallet Book 3'' 84-1-33 Brocot, 78·4·6, 79-4-10, 79-9-26 handles. 85-10-14 replacement, 79-9·22 "Official 1983 Price Guide to Antique Brocot, history of, 83-3-16, 83-4-26, 83-5-16, machines, 85-12-15 square hole, 79-4-14 gauge Clocks" 83-8-21 83-7-34. 83-8-32. 83-9-28 making, 85-7-8 "Official Price Guide to Antique Clocks" checking, 77-6·10, 77-7-8, 77-8-16, 84-11·6 needle, 85-7-9, 85-9-10 A.O. Leveridge, 84-3-22 85-9-32 Chelsea ship's bell, 77-2-30 _riffler, 85·7·9, 85-12-14 Marco clutch ~o plnlo,,, 8-C-7·20 Ehrhardt, Sherry-co-author ChinBSe duplex, 77-3-18, 81-3-50 selecting, 85-10-12 Moe, 84-3-22 "Vintage Amaric:an and European Wrist· common sense checking, 84·1·34, 84·2-26, storing, 85·10-13 roller jewel, 78-t-27 watch Price Guide" 84-3-28 vises, 85·11·11 Gazeley, W.J., 77-1-21 Book Review, 84-9-41 constant force, 78-1-32 filing Gazeley, W.J.-author elapsed time clocks Crabclaw duplex, 78-10-43 jewelry repair, 84-4-16, 86-11-18 Book Reviews: disassembly, 86-11-24 cuckoo clock, repair, 84-9-18 methods of, 85-11-10 "Clock and Watch Escapements" 82-12-24 introduction, 86-5-26 cylinder, 77-2-18, 77-3-21, 77-6-49, filing block, 85-3-36 "Watch and Clock Making and Repairing" operation instructions, 86-9-26 81·5·8, 81 ·6-34. 81-7-16 findings, 84· 11 ·18, 84-12-26 82-10-45

March 1987/Horo!ogical Times 43 gear hack saw, 85-5-15 "Horological Dialogues, Journal of the Jean Cardot watch, 83-2-32 calculations, 77-11-30 Hagans, Orv ilk! A .-editor American Section, Antiquarian Horological Jefferson Golden Hour electric clock, 79-5-36 calendar ring, 79-10-48 "The Best of J.E. Coleman: Clockmaker" Society, Volume I" Jendritzkie, H.-author cutter, 77-1·51 Book Review, 79-10-55 Book Review, 80-4-59 "The Watchmaker and His Lathe" direction of force, 77-4-8, 77·5-8 hairspring, 77-1-36, 77-5-13, 77-9-13, 77-11-36, " Horological Shop Tools 1700-1900" Book Review, 83-5-31 8-day clocks, 84-1-16 79·2·6, 86-4-32 by Theodore R. Crom jewel epicycloid, 77-4-8, 77-5-8 balance matching, 77-9-13 Book Review, 81-3-10 bezel, 78-11-9, 79-1-8, 79·2·32, 79-3-24 hypocycloid, 77-6-26 bending, 79-12-50 "Horology on the Half Shell A Monograph" cap, 77-7-51, 77-12·26, 78-7-10, 79-1-31 0 pinion drive, 77-7-24 collets, 80-1-22, 80-2-10 by Peter Belin friction, 79-4-2'2 striking, 77-2-11 expansion, 79-6-6 Book Review, 85-9-32 hole assembly, 78-7-10 tooth forms, 77-3-22 flat, 79-6-8 Horton, H.B., 80-1-28 impulse, 79-3-20 torque, 77~-18 isochronism, 80-3-20 "Hours of Love" polishing, 79-4-38 train, calculation, 84-1-16 natural error, 80-5-22, 80-6-38 by R, Carrera pushers, 83-5-8 train, rounding off, 84-5-20 overcoil, Breguet, 80-8-52 Book Review, 77-10-51 roller, 84-3-28 velocity, 77-4-9 forming, 80-9-10, 80-10-42 hour wheel, 85-2-21 jewel screw gear cutting lathe attachment, 82-3-8 Grossman, 80-12-28 housewife clock, 80-8-57 bevel-headed, 80-3·23 Gebhard Astronomical and World Clock, pinning, stud, 80-11-16 Howard, E. and Co., 77-7-32, 78-11-8 jeweler's saw, 82-7-23, 85-6-20 78-6-13 removal, 77-3-10 grandfather clock, 83·9-18 jeweling Geissler, C.A., 81-4-56 repairs, 79-12-50 Howard and Davis regulator clock, 77-12-20 friction, 85-3-8, 85-4-20 gemstones untangling, 78-6-51, 78-11-34 Howard Miller Clock Co., 85-1-18 subchucks, 81-11-12 appraisals, 84-7-30, 84-8-30 verge watch, 85-7-22 Howard tower clock, 77-5-16 iewelry repair color, 79-7-20 vibrating, 77-6-12, 80-4-60 "How to Build 35 Great Clocks" aligning/holding articles, 82-4·36 crystal systems, 86-5-32 half-cylinder escapement, 78-1-50 by Joseph Daniele annealing, 80-1-34, 86-12·18 durability, 79-5-10 Hall, Graeme, 77-6-32 Book Review, 85-3-28 basies, 86-9-24, 86-10-24, 86-11-18, 86· 12-30 heat. 79-4-36, 84-6·23 hallmarks, 80-3-42 "How to Construct a Scissors Clock" beading, 80-3-14 identifying, 79-7-20 Halsall, William, 83-5-20 by John Wilding bending, 86-11-22 light, 82-5-48, 82-6-30 Hamburg-American Clock Co., 84-2-8 Book Review, 82-7-40 bezels. 80-4-54, 85-1-23, 86-5-34, 86-7-26 optical properties, 86-3-28 Hamilton "How to Make a Congreve Clock" bonding, 83-4-20 organic, 86-7-28 500, 79-5-28 by John Wilding boric acid & alcohol, 85-12-22 pearls, 84-11~. 84-12-14 974, 16-size (hack). 80-7-30 Book Review, 77~ - 46 bracelet, hinged, 81 -8-16, 81-9-36 physical properties, 86-1-32 992 watch, 79-1-31, 84-4-27 "How to Make an Electric Clock" brazing, 86-1-31 quartz, cryptocrystalline, 86-11-30 chronometer ideas and design c::hanges, by R. Barnard Way cautions, 80-5-10, 80-11-12 quartz, crystalline. 86-9-22 80-4-18, 80-5-48, 80-6·10 Book Review, 81-4-6 chain, 86-2-26 ruby, 84-10-16 ship's chronometer, 78-1-16 "How to Make an English Style Bracket Clock" channel setting, 85-12-26 ultrasonics, 79-3-8 hammer by John E. Tyler checking for, 79-2-10 German leather striking, 80-12-20 Book Review, 78-8-51 cleaning, 80·1-34, 80-8-46, 84-1-12, 86-7-32 avii'ltOr watch, 81-8-30 square-headed, 80-4-58 "How to Make a Simple 16th Century Style comebacks, 82-8-26 chime clocks, 79-2-14, 84-8-28 leather striking, 80-5-26 Clock" costs, 83-9-12 drum table clock, 79-2-45 Hampden Watch Company, 77-10-16, 78-1-24, by John Wilding crests, 81-2-28 ratchet-toothed escape wheel, 84-11-6 79-11-26, 81-12-18 Book Review, 80-6-62 design/ layout, 83-12-22 wall clock, 84-2-8 balance staff, 78-1-27 " How to Repair Clocks" earrings, 81-1-49, 85-11-20 German movements, curing wear, 82-7-14 Hana, F.H.J.-author by Eric Smith emblems, 81 -2-28, 85-1-31 German tubular bell grandfather clock, 85-9-41 "English Lantern Clocks" Book Review, 85-1-21 estimating cost, 85-4-26 Gibbs, James W .-author Book Review, 80-8-63 Huber, Martin-co-author expanding skills, 83-11-26 Book Reviews: handcrafting jewelry, 81-1-48 "Patek Philippe Geneve" fastening, 83-4-20 ''Dixie Clockmakers" 79-11-55 hand file, 95.7.9 Book Revtew,82-11-42 filing, shaping, sawing, 84-3-12, 84-4-16 " Pennsylvania Clocks and Watches" hand, poise, 83-4-14 Huguenin and Sons, 86-12-6 86-6-29. 86-11-18 86·2·39 hand remover, 85-2-34 Hyltin, Tom M.-author findings, 84-11-18, 84-12-26 gib, lathe attachment, 82-2-16 hand rest, lathe, 82-1-12, 82-11-17 "The Digital Electronic Watch" finishing, 80-12-32, 85-8-16 gifts, for customers, 86-8-12 hands, 79-8·50 Book Review, 78-12·50 fishtail setting, 86-1-18 Gilbert clock, 78-7-31, 85-11·6, 86-9-29 reblack, 78-3-47 IBM clock, 86-3·6. 86-8·6 flame, 85-8-36 antique cakmder, 81-5-16 removing, 78-4-52 identification mark, how to (example). 86-9-30 fluxes/fluxing, 79-11-20, 80-1-34, 83-11 -26, Gilbert collections, 77-5-30 rubbing, 79-8-50 Identification Mark System, 86-2-22 85-5-22 Gilbert wall regulator, 8-day, 83-7-12 setting, 86-1-22 hunting case gold recycling, 85-2-14 glass cutting, 78-3-47 watch, 80-5-36, 80-6-18, 85-2-18 hinges, 79-10-30, 79· 11-38 handcrafting, 81-1-48 glass vials, 86-9-6 Hands, John E. and sons, 81-4-56 springs, 79-10-54 heads, changing, 80-4-54 Globe chime movement, 80-12-14 Hansen, Harry-author hypocycloidal gearing, 77-6-26 heat. 79-12·42, 82·1-24, 82-2-22, 86-11-30 Glover, Henry, 81-4-56 " The Wealth Transfer of Inflation" Huygens, Christiaan, 77-2-21, 77-11-34 holding devices, 82-4-36, 83-5-12 Glover, John, 81-4-56 Book Review, 83-5-41 illusion setting, 80-12-32, 86-4-38, 86-8-26 Glycine Watch Co., 86-2-10 hardening, staffs, 79-7-24 initials, emblems, crests, 81-2-28, 85-1-31 Golay Fils and Stahl, 83-4-14 hardness improvising, 85-5-12, 86-3-26 gold steel, 79-7-24 jump rings, 83-4-20 cases, 79-8·17 stones, 79-5-10 miracle setting, 86-8-26 old, 83-9-12 Harris, H.G.-author identification, gemstones, 79-7-20 miscellaneous, 81-5-46, 81-6-20, 81-7-44, golden hour, Jefferson, 79-5-36 Book Reviews: ldla-Tyme clock, 78-3-16 85-10-24 golf counter, 83-3-8 " Collecting and \dentiiying Old Watches" lgnatz clock, 81 -12-18 organization, 81 -3-40 gong, dull, 77-2-24 82-3-56 Illinois, Bunn Special, 82-8-32 pickling, 80-1-34, 85-3-20, 86-5-36, 86-7-32 Good, Richard-author "19th Century American Clocks" 82-1-47 Illinois Springfield Watch Co., 79-9-30 polishing, 82-9-20, 82-10-30 Book Reviews: Harrison, ship's chronometer, 78-1 -18 Illinois Watch Co., 77-8-12, 78·4-12 prong setting, 86-6-28 "Clocks and Watches in Colour" 86-7-21 Harrold, Michael C.-author illuminating alarm, escapement, 78-1-34 recycling "Watches in Colour" 80-11-36 "American Watchmaking-A Technical illusjon setting, 86-4-38, 86-8-26 gold/silver, 85-2-14 Goodrich, 77-1-21 History of the American Watch Industry Independent Watch Co., 78-5-27, 81-12-18 scrap metal, 85-7-20 Goodrich, Ward L-author 1850·1930" indexing (lathe) regulators, 85-4-32 "The Modern Clock" Book Review, 85-3-28 latch, 82-3-10 replacing prongs, 86-6-28 Book Review, 86-3-36 Harrison, John, 77-1 -26, 77-10-30, 78-10-43, universal dividing attachment, 82-4-16 restringing pearls & beads, 81-11·22, Graham dead beat escapement, 78-9-26 80-2-25, 83-10-33 ingestion, battery hotline, 85-9-34 81-12-22 making a new pallet, 78-11-22, 78-12-8 hatch springs, Accutron series 214, 80-2-32 Ingold Freise, 81 -9-18 ring findings, 85-1-22, 85-9-30, 85-10-24 repairs, 78-10-6 headstock, lathe, 82-11-17 Ingraham clock, 78-7-30 ring sizing, 84-8-22, 84-9-6, 84-10-20, 85-8-22 Graham, George, 77-1 -26 heat 8-day, 83-7-33 sawing, 86-10-24 " Grandfather Clocks and Their Cases" application of, 84-7-14 model SSC2, 83-12-20 scrap metal recycling, 85-7-20 by Brian Loomes gemstones, 79-4-36 strike movement, 83-2-12, 84-1-16 settings, 80-7-10, 85·9·30, 85-10-32, 85-11-14, Book Review, 86-3-36 jewelry repair, 79-12-42, 82-1·24, 82-2-22, instant timing, 85-1-10 85-12-26, 86-7-26, 86-8-26 grandmother clock. 79-9-30, 79-10-20 86-11 -30 integrated circuits setting up shop, 85-6-26 Grand Sonnerie, 83-9-41 shielding from, 84-6-22, 84-9-8 electronic timekeeping, 77-2-32 shanks, 80-4-54, 85-1-23 Gustave Sacker, 86-3-30 watch lug, 83-1-26 protection for, 77-2-36 shielding, 80-1-34, 84-6-22 graver, sharJK1ning, 83-1-14 watch repair, 82-1-24 Integrated Injection Logic (12L), 77-2-34 shortcuts, 84-2-22 graver, lathe, 82-12-10 heat treating, 86-7-30 lntermatic, 81-7-31 sides, replacing, 80-4-54 gravity escapement, 79-5-40 steel, 78-1-10 internal pres.sure effect, 77-1 -17 silver, 80-6-50 Gray, Peter L. DeMory, 81-4·56 Hebdomas 8-day watch, 78-12-14 International Time Recorder, 82-8-32 recycling, 85-2-14 great western watch, 78-12-14 Heeb, Joseph International Watch Co., 81-7-31, 82-5-34, sizing, 80-2-40 Gr1cian mantel clock, 77-9-8 modern skeleton clock, 80-1-12 83-11-16 solde<, 82·2·23, 85-6-28, 86-1-30 Greenwich Mean Time (GMT). 86-9·32 Heidelberg Astronomical clock, 82-6-34 Irish clockmakers, 79.3.37 stones, 85-3-26 Gribi, Theodore, 78-5-12 Heinrich, H.H., 81 ·5-30 isochronism, 80-3-20 stone setting, 86-5-24 grinder lathe attachment, 82-2-17 Helbros Watch Co., 86-8-6 Ithaca catendar clock, 78-8-20 systematic, 81-3-40, 83-10-16 "groaner" clock movement, 84-1-31 Henlein, Peter, 77-1-26 tie tack, 81-1-48 Grossman, Jules, 80-1-56 Hermie tipping, 80-3-14, 86-5-24 ground glass lap, 86-1-34 clock, 80·6·42, 80-6-46 tolerance, 82-12-26 Gruen Watch Co., 77-12-16 Ship's Bell Movement No. 132-071, 84-12-8 tools, 80-9-18, 82-3-18, 82-7-22. 86·9·24 Guardson time recorder, 84-6-33 Hermie Clock Co., meeting report, 84-1 -28 J top plates, 85-1-31 "Guide to Complicated Watches, A" Herschede clock, 80·4-14, 86-3-30, 86-6· 14 jacks, 81-12-12 tops, changing, 80-4-54 by Francois Lecoultre tubular-gong, Westminster chime floor Jacot torch, 80-11-26, 86-9-24, 86-12-30 Book Review, 86-1-12 clock, 77-8-40 star duplex escapement, 78-1-32 versatility, 81-4-12 Guinand, C.L, 83-2-45 Hewitt and son, 81 ·5-41 watch, 77-2-26 welding, 86-1-39 Guinness clock, 81-2-50 hinge, watch case, 79-10-30, 79-11-38 Jacot, Charles E. Johnson, George, 77-10-30 gurgle clock, 80-10-24 "History of Clocks and Watches, The" pocket watch, 85-5-1 O Johnson, Joseph, 80-10-38 by Eric Bruton Jacques dual chime grandfather clock Joliet, 86-8-36 Book Review, 80-7-49 85-10-8, 85-12-8 • jump ring, 83-4-20 holder, hand and screw, 77.3.53 jade clock, 80-10-24 Junghans hole closing, 77-6-22, 77-10-32, 77-11-16 Janvier, Antide Clock Co., 79-1-26 H Holzworth, George, 81-5-41 clockmaker, 80-2-44 two-weight, 80-6-22 Hackenbroh, Yvonne-author Hooke, Dr. Robert, 77-1-26, 77-2-21, 79-2-6 Japanese temple clock, 78-2-26 junk jeweler, 81-4-12 ''Renaissance Jewellery'' Hooke's Law, 79-2-6, 79-8-22 Japy, Frederic, 80-1-38 Jurgensen, Jules Book Review, 84-9-30 horizontal table alarm, English, 79-2-44 Jauch chime movement, 82-12-18 pocket watch, 80-7-30

44 Horological Times/March 1987 converter, 77-7-13 mainspring winder clock, 79-1·6 diagram of assembly, 77-8-22, 77-11-11 maintenance K display, 77-4· 12, 77-7-15 general, 82·3-18 N dynamic scattering, 77-4-12 gravers, 82-3-19 National Watch Co., 77-8-12 Kader, Wayne Louis-author Nations, Clock of, 80-12-36 "Clock Making for the Woodworker" field effect, 77·4-13 lathe, 82-9-18, 82-10-14, 82-11-16 screwdrivers, 82-3-18 navigating watch (chronometer) Book Review, 85-1-21 future of, 83-6-20 Manhattan Watch Co., 79·1-30 78-2-8, 79-11-48, 79-12-26 Kamney watch, 83-7-18 history, 83·6·6 illumination, 77-5-24, 77-8-20, 78-2-16 Manning, George, 81-6-44 needle file, 85-7-9 Kane, Patricia E.-co-author module, 77·7-12, 77-8-20 marble, 78-7-12 Negus, Thomas S., 81-2-16 "The American Clock 1725-1865" cleaning, 79-12-41 Neuehatelese clock, 77-1-12 Book Review, 81 -7-41 radiation, 77-5-25 refinishing, 77-9-8 Never-Wind clock, 79-6-6 Keebler Lux servicing, 77:5.20, 77-10-8, 77-11-10 "Marion-A History of the United States Watch New England banjo clock, 80-9-40 clock escapement, 77-2-27 tr~tium, 77-5-25, 78-2-16, 79-10-47 zebra, 77-5-26, 77-7-40 Company" New England Watch Co., 77-9-49, 81 -5-20, Kelbert watch, importer, 83-7-41 by William Muir and Bernard Kraus 85-3-16 key less wind mechanism, 83-11-34 leads, electronic meter, 86-1-10 Book Review, 86-4-31 New Era watch, 81-2-10, 86-4-10 Kieninger & Obergfell lead-tin lap, 86-1·34 leather punch Marion Watch Co., 77-7-35 New Haven 400-day clock, 78-10-42, 78-11-6 for clock repair, 80-12-20 Markarian, Ohannes-co-author bracket clock, 80-11·8 Kieninger chime movement, 85-4-8, 85-6-10 leather straps, 86-12-35 "Watches and Clocks in the Sir David chime movement, 80-2-36 Kieninger, Joseph, 81 -9-20 le Coultre, Francois-author Salomons Collection" No. 95 mantel clock, 83-4-16 Kienzle wall clock, 79-7-22 "Guide to Complicated Watches, A" Book Review, 85-9-33 rack striking movement, 84·6·12 K. Jemple Chime Clock Co .• 79-2-14 Book Review, 86-1-12 Marque Deposee, 83-1-18 regulator clock, 82-3-16 Kline, Sammos, 81-5-41 LED (Light Emitting Diode) Marsh, Oliver B. , 81-11-36 Newmark, 86-6-36 knife-edge suspension, 80-7-44 diagram, 77-5-37 Martin Hall clock, 79-10-20 New York Watch Co., 77-10-16 Koehn, Edouard, 81-7-14 display, 77-3-36 Masonic watch, 81-2-10 Nicolet, J.C.-author Kramer, Stephen Ill-author history, 83·6·6 Massey, Edward, 77-3-15 Book Reviews: "Clockmakers of Lancaster County and Their module, 77.5.34 material, ordering, 86-8-34 "Pendulerie" 85-8-31 Clocks" servicing, 77·5-40, 77-6-18 Matthey, Paul Henri, 82-8-32 "Turning and Milling in Horology" 86-12-19 Book Review, 78-7-42 lenzkirch clock, 84-4-27 Mau the Nichols, A.-co-author Kraus, Bernard-ca.author Leonidas golf counter, 83-3-8 8-day clock, 77-7-22 "Clocks and Watches in Colour" "Marion-A History of the United States Le Phare repeater, 84-3-18 W500 movement, 80-10-10 Book Review,86-7-21 Watch Company" Le Roy, Julien pocket watch, 81-10-18 McClintock clock, 77-3-54, 77-11·22, 78-3-38 Nicholson, Oavid M.-author Book Review, 86-4-31 Le Roy, Pierre, 80-1-43 mean time "Santa Fe: How it Governed its Timepieces Kreuzer, Anton-author "L'Eschappement a Cylindre" adjustments, 81-6-8 Throughout the System" "Vintage Wristwatches'' by Henry L Belmont mechanical a. 77-1-15 Book Review, 86-6-32 Book R...,i ..... 86·9"18 Book Review, 85-8-31 Meeks, Benjamin F., 81-6-44 "19th Century American Clocks" Kroeber, F. lever clock, 81·5·10 melting point by H.G. Harris 8-day clock, 77-10-40 levers, 77-2-42 metal, 82·1·26 Book Review, 82-1-47 Kullberg, Victor, 80-1-45 antique watch, 86-9-14 "Mercer Chronometers: Radical Tom Mercer numeration Ku mer. Max, 81-5·61 combin1fionj 86-9-14 and the House He Founded" clocks and watches, 78-11·10 Kunda standard clock, 79·1·26 Levine, Louis and Samuel-authors by Tony Mercer Nuremberg, West Germany, 83-6·56 "Practical Benchwork for Horologists" Book Review , 78-11-53 Book Review, 78-1-36 Mercer. Tony-author light, gemstones, 82-5-48, 82-6-30 ''Mercer Chronometers: Radical Tom Mercer 0 Oakes, John, 81-7-28 Light Emitting Diode and the House He Founded" "Official 1983 Price Guide to Antique Clocks" L see LED Book Review, 78-11-53 by Roy Ehrhardt "La Bulle-Clock Horologerie Electrique-Ses Lincoln portrait, 78-2-30 mercury, 85-6-16 Book Review, 83-8-21, 85-9·32 createurs Son historie, Brevets-fabrication­ link pin metals, melting point, 82-1-26 reparation" watch band repair. 86-12-35 meter ohm meter, 86·2·12 by Henry L. Belmont Liquid Crystal Oisplay current consumption, 82-8-12 resistance, 82-3-26 oil, cutting, 85-6-37 Book Review. 77-1-42 see LCD current testing, 78-9-30 ladder chain clock, 77-2-41, 79-1-44 Litherland rack lever escapement, 77-2-23 electronie, leads, 86-1-10 oiler Lady Sheffield watch, 77-8-26 Liverpool Windows, 82-11-24 horological use, 78-10-26 escapement, 78-10-37 Laine, Frank, 81·5·61 logic elements probe, 83-8-41 fountain, 78-10-38 Lancashire, 84-8-20 electronic timekeeping, 77-2-33 quartz, 82-8-40 oiling Lancaster Watch Companies of Pennsylvania longcase, 82-3-53 reading, 83-6-10 pallet pivots, 77-6-50 77.9.49 English volt-ohm (VOM), 82-2-8, 82-3-26, 82-4-32, pinions, 84-11·13 Landeron 189 chronograph, 77-9-8 antique 30-hour, 77-6-16 82-5-8 oil sink, polishing, 85-5-10 Landes. David S.-author half-hour chime, 77-7-10 "Metric Madness" oilstone powder, 78-6-35, 85-3-19 "Revolution in Time: Clocks and the Mak· 30-hour, 79-2-24, 79-10-16 by J .W. eatchelder Omega, 86-9·6 ing of the Modern World" unusual strike 30-hour, 79-10-16 Book Review, 81-10-48 Cosmic 2000, 85-5-30 Book Review, 84-3-30 Scottish 8-day, 77-3-26, 77-4-16, 80-5-18 Mickey Mouse watch, 84-8-20 one wheel clock, 77-4-26, 78-9-20 Langendorf, 86-9-6 Thomas Tompion, 79-2-45 micrometer, 83-4-10 opal, 80-10-50, 85-10-16 lantern clock, English, 82-11-30 "Longcase Clock, The" military watches, 83-3-8 optical comparator, 86-5-20 La Paute pin wheel escapement, 84-2-31 by Eric Bruton Miller, Robert W.-author organ, clock, 83-1-29 lapel watch, 79-6·6 Book Review, 78-5-35 "Clock Guide Identification With Prices" organization, jewelry repair, 83-10·16 lapping, bearings, 82-10-14 Longines Book Revlow, 66•11·39 "O" ring, crown, 82-2-48 laps, 83-10-10 11/87. 11/88, 80-2-56 milling lathe attachment, 82-3-8 oscillating ground glass, 86·1-34 13/56F, 79-5-28 "Minerals & Gemstones. an Identification cry$tals, 85-6-32 lathe, 79-6-12 15/94, 84-3-6, 84-3-18 Guide" testefS, 85-6-32 attachments, 82·1-12, 82-2-16, 82-3-8, chronograph, 81-6-22 by G. Brocardo oscillation, 77-1-35 82·4· 16, 82·5· 16, 82·6·20, 82-7-8, 82·8·22 Loomes, Brian-author Book Review, 83-6-37 out-of-poise balance, 77-1-35 balance staffs, 83-9-8 Book Reviews: "Modern Clock, The" Bergeon, 81·9·10 "Complete British Clocks" 81-4-6 by Ward L. Goodrich p Boley, 81-9-10 "Grandfather Clocks and Their Cases" Book Review, 86-3-36 care & maintenance, 82-9-14, 82-10-14, 86-3-36 modern floor clock, 79-3-30 Packard collection, 82-1-30 82-11-16 "White Dial Clocks, the Complete Guide" Molly Stark watch, 79-11-26 pallet chucks, 81-9-46, 81-10-8, 81-11-12, 81-12-8 82-10-45 monk clock, French, 82·5·39 arbor, 82-12-44. 83-11-8, 86-2·24 Clement, 81·9·10 Louis XIV clock, 81-10-12 Monk, Sean C.-author circled escapement, 77-1-12 cutting, 83-2· 16 loupe, 82-9-26 "The Essence of Clock Repair" Continental watch, 77-1-12 Derbvshire, 81-9-11 adjustment for glasses, 77-7-54 Book Review, 84-4-23 dead beat, replacing, 81-4-32 dividing head, 78-1-14 Marque Deposee, 83-1-18 Monroe, James, 81-6-47 faces, resurfacing, 82·4·40 gravers, 82-12· 10 upside-down, 79-10-47 Montandow, J., 81-7-28 gathering, 79-4-14 sharpening, 83-1-14 Low, Max, 81 -6-18 moon-phase watch, 86-1-23 !ever escapement, 78-2-22 indexing, 82·3·9, 82-4-16 lubrication moonstone, 85-6-14 making a new, 78-12-B Levin, 81-B-23, 81·9·11 gasket, 83-7-40 Morbier clock, 78-6-10, 81-11·16, 82·10·22 oiling (pivots), 77-6-50 measuring, 83-3-10, 83-4-10 watch, 79-10-36, 79-11-34 Moseley, Charles S., 85-5-20 parallel grinder, lathe, 82-2-18 Moseley, 78·4·10, 81-8-22, 81-9-11 Lugrin, A. repeater, 79-5-28 Moseley lathe, replate. 78-4-10 Parker Clock Co., 86-9-6 mounting, 82·11 -17 lumitime Company, 83-9-37 motor Patek Philippe, 82-5-34 pivoting, 83-12-28 lust astronomical clock, 80·4·50 noisy, 81·9 ·20 automatic watch. 84-8-26 pivots, 83-8-16, 83-12·28 synchronous clock, 78-4-10 restoration, 85-6-30, 85-7-24, 85-8-32, steady rest, 77-12-51 motor barrel. 86-8-14 85-9-20, 85-10-18 tailstock, 82-6-20, 82-7-8, 82-8·22 M mainspring, 83-3-32, 83-4-32 "Patek Philippe Geneve" taps, 83-7-6 Macey, Samuel L.-author Mudge, Thomas, 77-3-14, 79-5-40, 79·8·22 by Martin Huber and Alan Banbery thread cutting, 82-5-16 "Clocks and the Cosmos: Time in Western Muir, John, 77-4-24, 79-1-40 Book Review, 82-11-42 toolmaking, 83-5-8 Life and Thought" Muir, William-co-author patent lever escapement, 77-3-14 lathe attachments Book Review, 80-12-6 "Marion-A History of the United States pead, 80-9-15, 84-11-8, 84-12-14, 85-6-14 chucks, 81-9-46, 81-10-8, 81-11-12, 81-12-8 Madsen, Mogens, 79-8-6 Watch Company" peening cutters. 82·8·22 mainspring, 77·2-12, 77-9-36, 77-12-18, 79-7·10, Book Review, 86-4-31 staking tool, 84-12-20 gear cutting, 82-3-8 79-8-22, 79. 11-34. 80-3-28, 86-10-8, 86-11-8 music box clock, 79-3-36 pegging, 82-11-35 gib, 82-2-16 bridle adjustment, 78-5-16, 78-6-34, 83-3-34, "Musical Box Handbook, The" pendant, 82-12-34 grinder, 82-2·17 83-4-32 by Graham Webb pipes, 79-9-40, 85-11-8 hand rest, 82·1· 12 brass, 78·7 ·30 Book Review, 85-8-39 tu bes, 86-1-24 index latch, 82·3·10 Cartier, 77-7-51 "Musical Box Handbook, Disc Boxes, The" ''Pendulerie" milling, 82-3-8 clock, 80·3·29 by Graham Webb by J.C. Nicolet pivot polisher, 82-1-12 defect, 80·12·20 Book Review, 86-8-25 Book Review, 85-8-31 saw table, 82·1-12 fitting. 85-1-34, 85-6-34 musical instrument repairs, 86-4-34 pendulum steady rest, 82·1-13 formulas for measuring, 83-5-20 music box amplitude, 78-7-12 slid_e rest, 82-1-13. 82-2-16 fusee, releasing power, 85-8-16 adjustment, 78-1-39 length, 84-11-6 tailstock, 82-6·20, 92-7-8, 82-8·22 motor barrel, 83-4-32 maintenance, 78-1-40 rod, 79·9·26 thread cutting, 82-5· 16 repairs, 79-7-10 operation, 78-1-39 rotary (Briggs), 79-9-18 universal dividing, 82·4·16 safety barrel, 80-5-14 Muyter, Jan de, 80-6-24 slave clock, 77-2-48 Webster-Whitcomb jeweling rest, 82-7-8 selection, 82-7-12, 85-1-34, 85-6·34 mystery clocks, 86-1-6 weight, 82-12-22 Wolf-Jahn, 82·3-9 supplier, 78·3·41 "Pennsylvania Clocks and Watches" LCD (Liquid Crystal Display), 77-4-12, 77·5·24 tools, 80·3·29 by James W. Gibbs 78-2-16, 80-6-8 winder, 77-2-12. 86-6-6 Book Review. 86-2-39

March 1987/Horological Times 45 Peoria Watch Company, 77-9-48 crystalline, 86-9-22 "Replacing Quartz Watch Batteries" rebluing, 86-1·15 Pequegnat, Arthur Ulysses, 77-9-8 drift, 77-1-18 by Louis A. and Gregory L. Zanoni removal, 82-3-51, 84·1·22, 85-2-20, 86-3-12 Peridot, 85-8-29 flexural mode, 77-1-16 Videotape Review, 86-5-39 rusted, 86-7-10 petri dishes gate times, 83-6-24 resistance, ohm meter. 82-3-26 shortening, 80-3-23 for storing parts, 79-8-38 in clock cases, 83-2-44 resonators, 77-1·15 taps, 86-4·28 phosphorescence, 82-7-30 internal pressure effect, 77-1-17 restoration thread repair, 84-9-10, 86-4-26 pickling, 80-1-34, 84-5-12, 85-3-20, 86-5-36, mechanical repairs, 86-5-22, 86-6-20 antique watch, 86-1-14. 86-2-18, 86-3-12, screwdriver -86-7-32 micro test clips, 83-9-20 86-4-26, 86-5-14, 86-6-22, 86-7-18, holding, 80-9·38 Pierret, Victor-Anthanase, 84-1-20 oscillator tester, 83-1-32 86-6-18, 86-9-14, 86-10-28, 86-11-14, hollowground, 77-1·50 pin clock, 80-9-35 past, present, and future, 83-6-6 86-12-26 maintenance, 83-7-16 pinion polarity, 85-4-28 clocks, 79-1·16, 79-3-12 safety attachment, 82-6-32 capping, 78-12-32 regulation, 85-6-32 repivoting, 83-12-12 sharpening, 77-1-50, 80-1-52 cutting, 86-1-8 shock effect, 77·1-16 restringing, pearls/beads, 81·11-22, 81-12·22 screw head drive gearing, 77-7-24 step-motor repair, 83-6-10 resurfacing, pallet faces, 82-4·40 finishing tool, 86-1·17 lantern, 84-11-13 stem removal, 85-4-34 "Retail Jeweler's Marketing Guide" polishing, 86-2-18 loose wheel, 77-4-32 stems, 86-11-20 Book Review, 85·2-12 refinishing, 86-1·16 oiling, 84-.11-13 temperature, 77-1-16 retipping, 86-5-24 screw holder (wood), 77-6-54 pinion leaves (wooden) tester. 77-8-32, 85-8-44, 85-9-28, 85-10,30, retrofitting quartz clock movements, 84-10-40 screw holes "'Placed, 78-8-24 85-11-24 "Revolution in Time: Clocks and the Making of bushing, 86-4-27 pin lever watch, 82-2·34 see also TEST EQUIPMENT the Modern World" countersunk, 86-6·23 pin-set watch, 85-12-12 testing, 85-9-6 by David S. Landes stripped, 86-4-26 pin wheel tuning, 77-1-17 Book Review, 84-3-30 screwless balance wheel, 86-2-34 escapement, 77-1-21 tuning fork, 77-1-15 Reynolds, E.K. screw polishing machine, 81·3·30 repinning, 79-11-24 watch fit-up, 83-9-22 escapement, 85-4-36 screw thread pipe organ clock, 80-3-40 quartz analog Ricoh 5650, 84-6-31, 84-8-35 damaged, 86·4·26 Pirouette watch battery replacement, 84-5-32, 84-6-30, riffler file, 85-7-9 repair, 84-9-10 half-cylinder escapement, 78-1 -50 84-7-22, 84-8-34 Riggs, William, 81-8-50 Seckel, 81-8-51 pistol clock, 79-7-55 checker, 84-11-41 ring Seiko pithwood, 85-10-6, 85-12-6 step motor, 84-7-20 findings, 85-1-22, 85-9·30 99 series B, 84-7-22, 84-8-35 pivot testing, 84-1-15 finishes, 85-9-16 H239A, 84-7-22, 84-8-35 bent, 77-7-18 quartz crystals jump, 84-11-18 automatic chronograph, 82-1-43 holes, 84-6-16 replacement, 78-7-18 mounting repairs, 80-4-54 case servicing, 85-1-28 making, 83-8-16 testing, 78-7-18 repair, 85-8-22 Seikosha watch, 79-12·16 missing, 79-7-30 quartz oscillator setting, 85-10-32, 85-11·14 Selfridge's Wonder clock, 82-7-26 pallet, oiling, 77-6-50 regulation, 85-6-32 sizing, 80-2-40, 84-8-22, 84-9-6, 84-10-20 self-winder, Seth Thomas, 82-11-8, 82·12-30 polisher, 79-4-40, 82-1-12 testing, 81-8-56 stretching. 84-2-22 Self Winding polishing, 83-2-19 quartz. test meters, 82·8-40 Robert50n, J. Drummon-author clock, 83-2-32 restoration, 77-5-20 "Quartz Watch Repair Manual, The (Vol. 2) " "Evolution of Clockwork" Clock Company, 83·2·32 worn/broken, 77-7-26, 83-11-8 by Louis A. Zanoni Book Review, 78-3-49 "Self Winding Clock Company Synchronized pivot finish Book Review, 83-10-5 Rockford Watch Co., 79-10-24 Clocks-three instruction manuals" restoring, 82-9-8, 82-10-26 quenching, 78-2-34 Rockville, 80-10-38 published by Self Winding Clo~k Co. pivoting, 83-5-5, 83-12-28 Quick Checker (Renotest®I, 86-1-26 roller jewel, improperly set, 84-3-28 Book Review, 79-12-40 device, 77-8-8 QWA (Quartz Watch Analyzer), 86-4-14 roller suspension, 79-1-24 self-winding, 80-1-28, 85-9-14 Planes, Peter-co-auther roller table, 79-9-44 AS1700 repair, 78-8-28 "Vintage American & European Wrist­ removal, 77-3-11, 84-7·8 selling watch Price Guide" staking, 84-7-8 competition, 83-10-22, 83-11-12 Book Review, 84-9-41 ttghtening, 78·4-52 general, 83-9-26 Plato clock, 77-11-38 R rolling ball free pendulum clock, 81-8-44 quartz watches, 83-6-34, 83-6-38 Plewes, John-author rack, 86-3-6 Roskell, Robert, 77-2-21 Sessions chime clock, 82-4·12 ''Repairing and Restoring Pendulum Clocks'' replacement, 79-9-22: pocket watch, 85-10-22 Sessions Westminster clock, 77-10-26 Book Review, 86·6-32 rack clock, 81-12-14 Roskopf, 86-6-36 Seth Thomas. 86-12-8 pliers, 81-6-12 rack lever escapement, 77-2-21 , 78-1-35 pocket watch, 81-11-10 Century pocket watch, 80-12-12, 82-1-22 pocket watch Raffaelli, Giacomo, 77-5-30 watch 25299, 77-12-16 ehime rods, 78-4-10 case repair, 83-2-20 Rasmus Sornes clock, 78-1-30 Ross, Betsy watch, 82-2-34 Clock Company, 77-9·47 hinge repair, 86-9-34 ratchet hub, 82-5-24 rotary pendulum fashion, 80-11-14 see also WATCH ratchet wheel, 86-10-28 Briggs, 79-9-18 grandfather, 80-9-26 replacement, 78-4-10 po be Roth Brothers, 81-8-50 hour strike, 78-10·32 dynamic, 77-1-34, 84-4-28 rebanking, watches, 78-9-51 rubbings, from clock hands, 79-8-50 mantel strike clock, 77·5-30 error detection, 77-1-36 recoil escapement, 77-1-22, 77-2-40, 77-10·20, ruby, 84-10-16, 85-7-28 No. 89 movement, 83-10-6 error effect, 77-1-35 77-11-6, 77-12-12 Russell, Thomas R., 84-3-37 No. 113 chime, 82-6-8 static, 77-1-34 recycling Russian No. 120 movement, 83-8-10 polariscope, 84-4-32 gold and silver, 85-2-14 ERA 1000, 79-10-24 No. 124 movement, 79-12-10 polarity, 85-4-28 scrap metal, 85-7-20 Kamney watch, 83-7-18 No. 124 Westminster, 85-1-10 polishing, 82-9-20, 82-10-30, 86-5-8 Reed, George P., 81-7-51 rust, 77-4-54, 79-8-38, 78-7-10 pillar and scroll tap clock, 82-3-12, oil sinks, 85-5-10 refinishing brushes, 86· 1·15 82-4-22, 82-5-30 pivots, 83-2-19 marble, 77-9-8 on stem, 86-11-20 regulator care, 78-7-10 screw heads, 86-2-18 screw heads, 86-1-16, 86-2-18 removal, 86·1 ·14, 86-7-12 Sangamo electric chime clock, 85-4-23 springs, 86-8-19 reflected light, 82·5·49 screws, 86-7-10 selfwinder, 82-11-8, 82·12·30 sticks, 86-2-19 refractometer. 84-4-32 ship's bell clock, 78-10-10 watch cases, 79-12-20 regulating, 78-9-16, 78-11-34 Sonora chime clock, 78-3-34, 80-4-44 Polltzer, M., 81-7-28 Accutron, 85-3-32 30-hour OG clock, 84-4-8 Poole clock, 77-1-13 floating balance, 77-2·16 s "Seth Thomas, Clocks and Movements" Samalius, William H., 81·9--6 instant, 85-1-10 by Tran Du Ly porcelain dial refinishing, 84-4-38 Samuel, H. pocket watch, 85-2-29 quartz, 85-6-32 Book Review, 86-3-37 Porter, George E., 81-7-28 San Cajetan, Fr. David a, 79·5-22 Potter, Albert H., 81-7-29 repair, 85-1-12 setting ship's chronometer, 79-12-26 "Santa Fe: How it Governed its Timepiecas Pouzait, Jean-Moyse, 84-10-29 Throughout the System" bar. 86-4-38 Powers, T .B., 83-1-20 watch, 79-1-20 bazal, 86-5-34, 86-7-26 regulator by David M. Nicholson "Practical Benchwork for Horologists" Book Review, 86-6-32 fancy, 85-11-14 by Louis and Samuel Levin broken vials, 85-6-16 fishtail, 86-1-18 clock, 84-12-12 sapphire, 85-9-26 Book Review, 78-1-36 sardonyx, 85-8-28 hands, 86-1-22 Pratt, David, clockmaker, 78-4-12 key removal, 85-1-12 illusion, 86-4-38, 86-8-26 iewelry repair. 85-4-32 Sauvajois a Paris, 79-3-12 P<88Ch8f, 77-9-35, 78-3-41 saw blades, 85·6·21 miracle, 86-8-26 precision regulator, 78-4-30 soldering, 85-4·32 prong, 86-6-28 watch, 86-4-10 sawing, 85-5-14, 85·6-20 "Price Guide to Collectable Clocks, The" jewelry repair, 86-10-26 repairing, 86-7-26, 86-8-26 by Alan and Rita Shenton "whiplash", 86-4-33 stone, 85-3-26, 85-9-30, 85-10-32 "Renaissance Jewellery" saws Book Review, 86-10-36 tipping, 86-5-24 by Yvonne Hackenbroh hack, 85-5-15 probe, meter, 83-8-41 shanks, 85·1·23 Book Review. 84-9-30 jeweler's, 85-6-20 prong Shenton, Alan and Rita-authors Renotest® Quick Checker, 86·1·26 saw table, lathe, 82-1-12 replacing/setting, 80-3-14, 85-10-32, 86-6-28 "The Price Guide to Collectable Clocks" Renotest I, 86-2-28 saw tooth clock, 78-3-36 pulley, clocks, 81-2-40 Book R eviaw, 86-10·36 II, Schatz ship's bell movement, 84-10-6 punch, 82-1-16, 82-2-12 Renotest 86-3-22 Shenton, Rita-author "Repairing and Restoring Pendulum Clocks" SchikS, A. "Christopher Pinchbeck and His Family" staking tool, 84-2-14 8-day pocket, 77-6-14 by John Plewes Book Review, 77-9-51 strap, 82-1-52 1902-03, 77-5-32, 77-9-12, 77-11-36 push button, cleaning, 85-7-16 Book Review, 86-6-32 shielding, 80-1-34, 84-6-22, 84-9-8 "Repairing Old Clocks and Watches" 1920, 77-12-16 pusher ship's bell clock, 78-10-10, 82-1-8 by Anthony J, Whiten 520 series, 77-7 -46 Waterbury, 80-7-30 adjustable depth, 78-1-54 Schorsch, Anita-author pusher crowns, 86-1·24 Book Review, 82-1-46 ship's bell code, 82-1-9 "The Warner Collector's Guide to American PUW 512, 84-6-31, 84-8-35 "Repairing Quartz Watches" ship's bell watch, 82-1·8 by Henry B. Fried Clocks" "Ship's Chronometer, The" Book Review, 84-1·27 Book Review. 81-10-48 by Marvin E. Whitney "Repair of American Wood Geared Clock Schwalbach, Mathias, 79-4-48 Book Review, 86-1-12 Movements, The" Schwarzwald clock, 82-7-12 shock effect (quartz:), 77-1-16 0 by Hans Barlow Schwenningen, 79-4-16 shock springs, installing, 85-8-27 Ouare, Daniel, 77-1-26 Book Review, 82-1-56 Scottish longcase, 77-3-26, 77-4-16, 80-5-18 Shugart, Cooksey-co-author quartz: repeater scratch marks, 80-12-44 Book Reviews: after cell problems, 85-3-30 case. 77-12-16 screw, 78-3-36 "American Pocket Watches-Updated and aging, 77-1-16 chime spring. 77-2-24 battery clamp, 86-3-19 Revised Evaluation Guide, 1986 Edi­ battery voltage, 77· 1·18 Le Phare, 84-3-18 bridge, 86-5· 18 tion" 86-12-29 casing, 83-6-28 "quarter repeating", 83-11·20 broken, 82·3·51, 85-2-20 "The Complete Guide to American Pocket characteristics of, 77-1-16 Swiss, 83-12-16 detent, 86-5-22 WatchM" 82-8-45, 83-5-41, 85-6-18 clock fit-up, 83-2-46, 84-10-40 Tiffany, 79-12-19 hip dial, 86-5-18 Sifakis, Carl and Maria-Luise-co-authors clock retiability, 83-6-18 watch, 81-6-22, 86-1-38 manufacture, 86-5·14 "Beginner's Guide to Antique Watches" coil, 85-5-28, 85-8-40, 85-1()-30, 86-1-10 repivoting, 77-7-26, 77-8-8, 82-7-14, 83-12-12, pitch, 86-4·28 80-8-63 crowns, 86-11-20 83-12-28, 86-12-18 polishing machine, 81-3-30 silicone applicator, 83-7-40 cryptocrystalline, 86-11-30 center wheel, 85-1-33 quarter. 86-4-32 silk-suspension, 80-10-49

46 Horological Times/March 1987 silver pallet arbor, 84-8-14 Tavannes watch, 79-6-6 "American Pocket and Wrist Watches eases, 79-8-17 peening, 84-12·20 teeth Balance Staffs Interchangeability List" recycling, 85-2-14 pinions, removing/replacing, 84-10-12 barrel, 78-2· 12 85·7-31 saddle and harness repair, 81-10-26 punches, 84·2·14 damaged, 84-7-27 ''American Railroad Watches", 78-4-39 sine curve, 79-8-23 regulator repair, 85-1-12 new, 82-3-34 "E, Howard & Company Watches" 84-9-31 Sipes, R.H., 82-1-28 roller tables, 84-7-8 ratchet, 78-4-10 train, 86·2·14 Sitherwood, William, 79-6-24 staff removing, 84-4-12, 84-8-14 wheel, 78-1 -6 train wheel pinions, 83-12-12 sizing, bracelet, 78-10-36 stretching, 84-12·20 wooden, 78-7-14 Tran Du Ly-author "Skeleton Clock" stumps, 84-3-B Tellurion clock, 80-5-17 "Seth Thomas, Clocks and Movements" by Richard Stephen, William R. Smith, and watch hands, 85·2-18 temperature Book Review, 86-3-37 Harold Auger wheels, 84-11-10 adjustment, watch, 81·2·20 transistorized balance wheel clock, 78-2-32 Book Review, 83-11-31 standard bell, 80-2-48 in quartz watch, 77-1-16 tree trunk clock, 80-11-24 skeleton clock Standard 30-hour cuckoo dock, 82-7-32 solder flow, 82-2-23 trimmer capacitor, 77-1-17 English, 77-11-20 Standards, National Bureau of, 81-10-24, solder melt, 82-2-23 trip spring, 79-1-32 French, 78-7-26 81-11-28, 81·12-26 tempering tritium, 78-2-16, 79-10-47 skull watch C8S&$, 82-8-36 Star Clock Co., 79-4-50 small parts, 79-7-24 truing, escape wheel, 85-11·39 slate, 78-7·12 static electricity springs, 86-7-37 trumpeter clock, 80-3-40 slave clock pendulum. 77-2-48 digital watch, 77-8-30 Tennessee sour mash clock, 79-12-36 tube, case $lide rest, lathe, 82-1-13, 82-2-16 steady rest, 82·1·13 Terry, Eli, 78-8-14, 82-3·12 tool for replacing, 77-10-53 Sltgh Clock Co., 84-11-14 filing in lathe, 77-12-51 test equipment tubular beU chime movement, 85·2·8 s1;gh clock, 85-4-8, 85-6-10, 85-8-18 steel Bulova Accutron, 85-10-28 tuning, 77·1·17 Smallwood clock, 78-5·8 annealing, 78·1 ·10 Bulova Variable Power Supply, 85-11-24 tuning fork, 77-1-15 "smart calendar", 77-2-36 hardening, 78·1·10, 78-2-34 Citizen Multi-tester, 85-12-32 Turkish watch, 81-3-30 Smith, Eric-author heating, 86-7-30 coil checker, homemade, 86-1-10 turning devices, 79-6-12 Book Reviews: heat treating, 78-1-10 OHMS meter, 86-2-12 "Turning and Milling in Horology" "How to Repair Clocks" 85-1-21 quenching, 78-2-34 OWA-5 Quartz Watch Analyzer, 86·4-14 by J, C. Nicolet "Striking Clocks, Their Working and Repair" tempering, 78-3-18 Renotest I, 86-2-28 . Book Review, 86-12-29 86-6-32 watch, 86-8-36 R enotest 11, 86-3-22 turquoise, 85-12-25 Smith, William R.-eo-author stem Renotest Quick Checker, 86-1-26 turret clock, 86·6·26 "Skeleton Clock" altering, 84-8-27 Valtec 1000 Quartz Watch Monitor, 77·8-33 tweezer, 83-5-12, 86·12-10 Book Review,83-11·31 Bulova Cal. 2783, 83-2-44 Waterproof Tester, 77-9-10 grip, 83-11-6

SMO electronic set style, 86-11-20 Witschi Q Test 4100, 86-6-10 moint.-:rumu1 83·7·16 battery replacement, 84-5-32, 84-6-30, fitting, 79-9·40, 82-10-40 Zantech Quartz Watch Analyzer ZA900, Twisted Nematic Field Effect Liquid Crystal 84-7-22, 84-8·34 interchange, 84-8-27 86-10-14, 86-11-32, 86-12-12 Display, 77-7-16 checker, 84-1 1-41 mokln;, 79·6·34, 82·11-38 tester two-escape wheel lever escapement, 77-12-22 step motor, 84-7-20 quartz, 86-11-20 analog, 78-9-16 Tyler, John E.-author testing, 84-1-15 removal, 79-3-10, 83-2-44, 84-8-34, 85-4·34, battery. 83·2-30, 83-3-18 Book Reviews: "snail" cut, 83·2·6 86-5-22, 86-9·10 probes, 83-8-41 "American Clocks for the Collector" snap, adjusting a, 79-11-18 split, 85-7 ·6 quartz, 85-8-44, 85-9-28, 85-10·30 82·7·41 snap-back cases Stephen, Richard-co-author quartz oscillator, 83-1-32 "Black Forest Clocks" 79·1·39 opening, 78-6·51 "Skeleton Clock" Thacker, Jeremy, 80-2-24 "How to Make an English Style Bracket solder Book Review, 83-11-31 thatched clock, 82-7-26 Clock" 78-8-51 applying heat, 84-7-14 step-motor thread cutting lathe attachment, 82·5·16 Tyrer, Thomas, 77-2-21 flow temperature, 82·2-23 quartz watch repair, 83-6-10 three-train quarter-striking clock, 79-6-20 jewelry. 79· 11·20, 79-12·42, 83-4-20 ultrasonics, 84-7-20 tickless clock, 84-7-6 84-5·12, 84·8·22, 84·9·6 Stevens, J.P., Watch Company Tiffany melt temperature, 82-2-23 77.9.23 Never-Wind clock, 77-5-32, 79-6-6 preparation, 84-5-12 Stewart, Arthur, 81-8-51 repeater, 79-12-19 u propar uses, 85-6-28 stone dial, colored, 81-11-44 "Time Museum, The" ultrasonics ring sizing, 84-8-22. 84-9-6 stones by Seth G. Atwood and William Andrew&$ clock cleaning, 81-6-24, 81 -10·29 supplies, 79-12·42 see also BIRTHSTONES and GEMSTONES Book Review, 84-7·41 gemstones, 79-3-8 ten main steps, 83-8-22 applying heat to, 86-7-26 Time & Frequency Division, 81-10-24, seal Id bon•l" 84·7 -20 watch cases, 79-11-38, 83-1-26 composite, 79-6-28 81-11-28, 81-12-26 step motors, 84-7-20 solder equipment removal, 86-6-28 timer uniform torque gearing, 77-8-18 regulator, 85·4·32 repairing, 86-5-24 analog, 78-9-16 uniform velocity ratio, 77-4-8 sources of gas, 85-4-32 setting, 82-11-20, 85-3-26, 85-9-30, 86-1-18, clock, 84-8-28 United States Watch Co., 77-7·35, 81-5-20 soldering, 82-1-25, 82-2-22, 86-1-30 86-6-29 elapsed, count-down, 84-2-6 universal dividing attachment, 82-4-18 solder tips, 86-5-25 shapes, 85-3-26 time signals, 78-5-18, 78·6·2 Universal 281 chronograph watch, 85-12-12 solid state sizes, 85·3·26 timing "UP converter", 77-7-13 bench, 77-8-30 synthetic, 79-6-28, 81-1-24 Accutron, 85-3-32 uprighting, 77·6·22, n-10-32, 77-11-16 electronic timepiece explosion, 77-1-40 stopwatch, 77-12-18 instant, 85-1-10 Urgos servicing, 77·5·40, 77-6-18 history, 84-10-10 quartz, 85-6-32 chime movomen&. 82:-8•16 setting, 80·8·28 stop works, 80-11·14 timing machine, calibrate, 78-5-18 9-tubular bell movement, 86·2·6, 86-4-20 terms, 80-3-26, 80-4-26, 80·5·8, 80·6·16 straw clock, 80-8-57 tipping, 86·5·24 80-7-14 streaking, 78-11-34 Tobias, Morris, 77-2-19, 77-7-20 solutions, 78-1-46 Streeter, Edwin W., 86-9-29 toilet seat clock, 80-8-57 Sonora chime clock, 78-3-34, 84-9-10 strike tolerances, 82-12-26 v SPD see also CLOCKS Tompion, Thomas, 77-1-26, 77-2-18 Vacheron, Abraham, 77-1-32 Y480A, 84·7·23. 84-8-35 German chime clocks, 79-2-14 longcase clock, 79·2-45 Vacheron and Constantin, 82-9·34, 85·12-12, Y591A, 84·7·23. 84-8-35 setting up the, 79-2-14 tools 86·5·8 specific gravity, 82-7-30 strike lifter, replacement, 79-9-22 Accutron, 77-2-45 vacuum case, 86-2-10 Sposato, Kenneth A.-author "Striking Clocks, Their Working and Repair" beat amplifier (clock), 84-7-28 vacuuming movements, 81-11-20 "The Dictionary of American Clocks and by Eric Smith bushing, 81·8-10 Valjoux Watchmakers" Book Review, 86-6-32 cannon pinion, 78-2-54 7750, 77-6-42 7733, 77-6-50 Book Review, 85-1-39 striking gears, 77-2-11 clock, 81-1 -9 Spratt, Samuel, 79-3-37 stripped screw holes, 86·4·26 dial refinish, 83-10-33 Valtec 1000 Quartz Watch Monitor, 77-8-33 spring stripping, 78-12·15 hairspring, 78-11-34 van Leeuwen. S., 79-7-30 Vaucher watch, 78-9-15 barrel teeth, 84-7-27 Stromberg electric, 78-4-14 hand pm11r, 78-2·54 Velcro Cuff, 77-8-31 click, 84-11-6, 86·9·15 stud, removing a, 83-4-41 holders/holding devices, 77-3-53, 77-4-54, verge combination, 86-9-14 stumps, 82-1 -16, 82-2-12 78-5-51. 81-1-10, 81-3-8, 83·5·12 escapement, 77-1-26, 78-1-35 finding thickness and length, 83-5·20 staking tool, 84-3-8 screw, 77-6-54 regulating, 86-7-22 finishing, 86-8-18 sub-punch holder, 85-2-23 jewelry repair, 82-7-22, 83-5-12, 86-9-24 silent, 80-4-42 flat. 86·6·22 Sully escapement, 77-12·24 KIF, 77-2·45 verge fusee formed, 86-7-18 sun dial pocket watch, 78-6-22 made with lathe, 83-5-8 letting power down, 85-8-16 hook, 79-1-6 suspension mafntenanc:a. 92·3- l8, 83-7-16 Verite ball. escapement, 85-8-42 hunting ease, 79-10-54 clock, 80-4-58 measuring devices, 81-5-24 Vernier caliper, 83-3-10, 83-11 -21 Pod<01 ...... 82·5·20. 82-6·18 knife-edge, 80-7-44 lathe, 83-3-10, 83-4-10 vials polishing, 86-8-19 post, 82-4-10 organizer, 80-1-1 O broken, 85-6-16 shock. 80-6·8 spring, 79·4·10 pivoting, 77-8-8 glass, 86-9-6 tempering•, 86-7-37 wire loop, 79-1-24 pliers, 81-6-12 vibrations, 86-6-8 watch case, 82-5-20, 82-6-16 Swedish cathedral clock, 79-8-6 pocket case opener, 77-7-20 Vienna regulator, 79-4-20, 79-6-20 spring bar swinging doll clock, 78-5-34 spring loaded detent, 78-1-54 curved, 86-12·34 Swiss tube replacement, 77-10-53 3-weight, 83-9-16 Viennese clock, 82-10-22 curving, 78·6·61, 80-3-23 bar, 77-3-21 ultrasonics, 81-6-24 styles, 80·3·48 cylinder movement, 82-6-26 tool kit, clockmaker's, 80-12-42 "Vintage American & European Wristwatch Price Guide" spring cart, 85·2·26 screw plate, 86-5-15 topaz, 85·11·28 spring datent Meap1ment, 77-3-42, 78-9-25 screw taps, 86-4-28 torch, 80·11·26, 82·2·22, 86-9-24, 86-12-30 by Sherry Ehrherdt and Peter Planes Springfiefd Watch Company, 77-8-12 silver 1890 era watch, 86-7-6 jewelry repair, 79-12-42 Book RevidW, 84-9·41 staff, 77 -3-8 training center, 80-7-26 watch case repair, 79-11-38 "Vintage Wristwatches" balance, 79-5-6, 79·5-16, 80·7-40, 80·8·32. symbols, electronic, 78-12-40 torque, 77-8-18 by Anton Kreuzer 80·9·6. 80-10·8. 83-9-8, 83-10-10 Synchronome electric clock, 82-5-12 tower clock, 79-12-19 Book Review, 86-9-18 hardening, 79-7-24 tortoise-shell mounted clock, 81-7-24 violin clock, 80-8-56 verge, 77-5-16, 83-11-21 tourmaline, 85-10-17 voltage, 82-2-9 staffing, 77-3-8, 77-4-34, 77-5-12 tower clock, 81-9-14 voltmeter, 78-10-26 clock, 85-2-18 T "Tower Clock and How to Make It" volt ohm meter (VOM), 82-2-8 stakes, 82·1·16, 82-2-12 tailstock, lathe, 82-6-20, 82-7-8 by C.B. Farson staking tool take-in procedures, 81·9-16 Book Review, 82-4-47 clock staffs, 85-2-18 tank crystals, 77-1-10 Townsend, George E.-author closing pivot holes, 84-6-16 taper pin, 79-10-24 Book Reviews: cylinder, 84-9·12 taps, 83-7-6 "Almost Everything You Wanted to Know die plate, 84-5·16 screw About American Watches and Didn't friction jeweling, 85-3-8, 85-4-20 Elgin, 86-4-28 Know Who to Ask" 83-12-5 hour wheel, 85-2-21 Swiss standard, SS...:·28 kinds, 84-1-8 Waltham, 86-4-28

March 1987/Horologicaf Times 47 Kamney, 83-7·18 "Watches and Their Value" winding, 86-1-22 Kelbert, importer, 83-7-41 by Donald deCarle problems, 83-11 -34 w Lady Sheffield, 77-8-26 Book Review, 80·9-20 stem, 79-6-34 wag, 78·12·12 Lancashire, 84-8-20 "Watches in Colour" Winston watch, 83-1-18 wagon wheel clock, 80-11-24 Langendorf, 86-9-6 by Richard Good Winterhalder chime movement, 85·8·18 Waltham, 86-7-8, 86-12, 6 lapel, 79-6-6 Sook Review, 80-11-36 Winterseller, Armand R., 84·3·20 Appleton Tracy, 83-7-18 LCD, 78-2-16 "Watch Factories of America" wire bonds, broken AS-ST 1902-03, 77-5·32 see also LCD by Henry G. Abbott their repair, 77-12-35 balance staffs (models 1877, 1883), 84-6-20 LED, 77-3 -38 Book Review, 82-4-47 wire chucks, 81-9-46, 81:10-8 banjo 8-day, 80-7-16 see also LED watch mainsprings, 85-1-34 wire loop suspension, 79-1·24 clock, 86-7-8 Lexon, 77·2-26 "Watchmaker and His Lathe, The" Witschi Q Test 4100, 86-6-10 clock, 8-day, 77-2-27, 83-7-41 liok pin, 86-12-35 by H. Jendritzkie Wolf-Jahn lathe attachment, 82-3-9 riverside pocket watch, 81-11-10 Liverpool Windows, 82· 11-24 Book Review, 83-5-31 "Wonderful World of Time, The" safety barrel, 80-5-14 lubrication, 79-10-36, 79-11-34 "Watchmaker's and Model Engineer's Lathe, by Stacy B. Wood screw taps, 86-4-28 mainsprings, 85-1-34 A User's Manual" Book Review, 84-3-35 16 size minute repea,er, 77-2-24 Masonic, 81·2·10 by Donald deCarle wooden movement clocks, 78·9·12, 82·10·38 Watch Company, 77-7-32, 86-4-28 Mickey Mouse, 84-8-20 Book Review, 86-1 -38 bushing, 78-6-25 wandering hour watch, 81-2-1 a military, 83·3-8 "Watchmakers and Clockmakers in Russia, cleaning, 78-6-24 Ward, ThomasW., 81-8-57 Molly Stark, 79-11·26 1400 to 1850" pinion leaves replaced, 78-8·24 "Warner Collector's Guide to American Clocks, moon-phase, 86-1-23 by Valentin L. Chenakal problems and pitfalls, 78·5·36 The" navigating, 79-11-48, 79-12·26 Book Review, 78-9·48 tooth replacement, 78·7-14 by Anita Schorsch New England Watch Co., 85·3-16 watchmaker's lathe Wood, Stacy B.-author Book Review, 81-10-48 New Era, 81 -1-10, 86-4-10 see LATHE Book Reviews: Washington Watch Co., 85-9-8 Newmark, 86-6-36 '"Watchmaking" "Clockmakers of Lancaster County and watch Patek Philippe, 82-5-34 by George Daniels Their Clocks" 78-7·42 adjusting snap, 79-11-18 automatic, 84-8-26 Sook Review, 82-2-45 ''The Wonderful World of Time" 84-3-35 Admiral, 80-7-30 restoration, 85-6-30, 85-7-24, 85·8·32, Waterbury workshop setup, 79·2·20, 84-9-26 age determination, 78-4-44 85-9-20, 85-10-18 double-deck chime movement, 82-10·18 World Time Computer, 77-6-6 Albert Duval, 80-1-28 pin lever, 82-2·34 duplex watch, 77-5·18 worm attachment, 77·1·26 aluminum, 82-9-34 pin-set, 85-12-12 half-hour strike, 77-2-40 Wortman, Leon A.-author Appleton Tracy, 83-7-18 Pirouette, escapement, 78-1 ·50 ladder chain clock, 77-2-40 "A Daskbook of Business Management Terms" Badollet Co., 78-1-22 pocket ship's bell clock, 80-7-30 Book Review, 82-2-50 band fitting, 83-4-30, 83-5-38 case repair, 83-2-20 Watch Co., 77-8·15, 77-9·49, 78-1-26, repair, 86·4·35, 86·12·35 value, 83-10-30 80-10-38 Beesley, R. & G., 83·10·26 production repair of, 83-5-26, 83-7-22 water clock, 79·1·42 Betsy Ross, 82·2·34 putting in beat, 77.7.9 water resistant bezels, 79·3·16 quarter repeating, 83-11-20 crowns, 77-11·54 z Blum Collection, 79·10·44 quartz, 86-1-10, 86·5·22, 86·6-20 testing, 77-9-10, 77-10·26, 78·8·15 Zagoory, Jae-co-author Borel & Courvoisier, 84·7·31 see also QUARTZ watches, 77-10-53 "A Time to Watch, A Watch as Art: Bourquin, 80-11·14 repeater, 81-6·22, 86-1-38 water wheel clock, 79-6-24 Classic, Rare, Extraordinary", 86·8·25 Breitling, 80-8-26 restoration (antique), 86·1·14, 86·2·18, Watkins, Charles A., 77-4-26 Zanoni, Louis A.-author Bristol, 81 -7·31 86-3-12, 86-4-26, 86-5-14, 86-6-22, WATS Line, 79·3·52 "The Quartz Watch Repair Manual, Vol. 2" Bulova automatic, II ALAC 17j., 77·1-10 86-7 -18, 86-8-18, 86-9-14, 86-10-28 Way, R. Barnard-author Book Review, 83-10-5 bushing, 84·10-26 86-11 -14, 86-12-26 "How to Make an Electric Clock" 2anoni, Louis A. and Gregory L.-authors calendar, 86-1-23 Roskopf, 81-11·10 Sook Review, 81·4-6 " Replacing Quartz Watch Batteries" ease, 79-7 -16, 79-8-17, 79·9-40, 79·10-30, 25299 watch, 77-12·16 "'Wealth Transfer of Inflation, The" Video Tape Review, 86-5-39 79-11 -38, 79-12·20, 83-1-26, 86-9-34 Schild 8-day pocket, 77-6-14 by Harry Hansen Zantech Quartz Watch Analyzer cleaning, 79-11-38 Seiko Book Review. 83-5-41 ZA900, 86-10-14, 86-11·32, 86-12-12 polishing, 79-12-20 99 Series B, 84-7-22, 84-8-35 Weaver, J.D.-author Zenith Movado, 79-8-20 push buttons, 81-9-22, 81-10-36 H239A, 84·7·22, 84-8-35 "Electrical and Electronic Clocks and zircon, 85-12-24 Seiko, 86· 11-6 automatic chronograph, 82-1·43 Watches" zodiacal clock, 79·11-52 servicing, 85-1 ·28, case servicing, 85-1-28 Book Review, 83-1-37 Zonen, J.A., 81-8-51 springs, 82-5-20, 82·6·16 Seikosha, 79-12·16 Webb, Graham-author Zona Time dial, 83-11-22 Centennial, 86·6·8 self-winding, 80-1-28 Sook Reviews: cleaning, 78-4-22, 86-3-33 Seth Thomas Century, 80-12-12, 82-1-22 "The Musical Box Handbook" 85-8-39 Columbus Time King, 83-3-8 skull eases, 82-8-36 " The Musical Box Handbook, Disc Boxes" complicated, 85-11-18, 86-1-22 SMO, 84-1-15 86-8-25 construction, books, 84-3-6 see also SMQ Webster-Whitcomb jewelry rest, 82·7-8 crown, 79-8-39 snap adjustment, 79-11-18 Weeden, William N., 86-11-12 crystals, 80-1-46 soldering, 79-11-38 weight, 78-10-20, 80·4-2 odd-shaped, 77-2-30 steel, 86-8·36 pendulum bob, 77-6-12 Delta 81, 83-7-41 streaking, 78-11-34 Welch clock, 78-1-26 dials, 80-5-36 sundial pocket, 78-6·22 welding, 86· 1 -30 dial rep.air, 83-3-14 Swiss Wenzel air clock, 78-8-16 digital, 77-2-36, 77-6·18 bar, 77-3-21 Western Union clock, 77-7-18 digital troubleshooting, 81-2-24, 81-3·32 Cottage, 77-7-18 Westminster Chime clock, 77-1-6, 79-2·14 Dudley Co .• 78·5-24, 78·11·9 cylinder, 82-6-26 mantel, 81·12-18 Dudley Masonic, 77-6-14 silver 1890 era, 86-7-6 "Wetherfield Collection of Clocks The" duplex escapement, 81-5-20 Tavannes, 79-6-6 by Eric Bruton ' early mechanisms, 77-1-26, 77·2·18, 77-3-14 temperature adjustment, 81·2·20 Book Review, 83-12·5 E. Howard & Co., 78-11-8 test equipment Weule, Louis, 81-8-58 18-size escapement, 81-12-38 see TEST EQUIPMENT wheel Eldorado, 83-2-32 United States Watch Co., 81-5·20 balance, 80-9..S electronic, 78-12·40 Universal 281 chronograph, 85-12·12 balance screw, 78-4-14 Elgin Vacheron Constantin, 85·12-12, 86-5·8 cutting, 77-9-30, 77-10-12, 78·1·14, 78·7·12, convertible, 79-10-20 Vaueher, 78-9-15 79-2-14, 79-3-14, 79-5-30, 86-1-8 "O" size, 79-10-25 verge, 86-7-22 pinning, 79·11-24 pocket, 82-5-34 Waltham, 86-12-6 ratchet, 86-10-28 timer, 79-10·22 Riverside, 81·11·10 remounting, 77-4-32 T.M. Avery, 77-2-30 safety barrel, 80·5-14 screwless balance, 86-2-34 English Watch Co., 86-4-28 snail cutting, 83-2-6 duplex repeater, 82-9-18 wandering hour, 81-2-10 straightening, 81 ·8-42 fusee, 86-11-8 Washington Watch Co., 85-9-8 teeth, broken, 78-1-6 Eniear Bidynator, 79·3·14 Waterbury duplex, 77-5-18 watch train, 84-11-10 Fahy ease, 84-6-20 water resistant, 77·10·53 wheel drive gearing, 77-6-26 Fesoldt, 82-4-10 winding problems, 83-11-34 "White Dial Clocks, The Complete Guide" fencing, 78-10-22 Winston, 83-1-18 by Brian Loomes fitting, 80-6-18 Zenith, 79·8·20 Book Review, 82-10-45 watch cell Ford Collection, 78-11-11 White, Wilfred, 81-8-58 see BATTERY friction in, 79-6-38, 79-7-45 Whiten, Anthony J.-author German aviator, 81·8·30 "Watch and Clock Information Please!" "Repairing Old Clocks and Watches" Glycine Watch Co., 86-2-10 by William H. Samelius Book Review, 82-1·46 Golay Fils & Stahl, 83-4-14 Book Review, 81-9-6 Whitney, Marvin E.-author Great Western, 78-12-14 "Watch and Clock Making and Repairing" ''The Ship's Chronometer" hallmarks, 80-3-42 by W.J. Gazeley Book Review, 86·1·12 Hamilton 992, 79-1-31 Book Review, 82-10-45 Whitney, Philip-author Hampden, 78-1-24, 79-11-26 watch bands, 80-3-48, 80-4-28, 80·5-44, 80-7·48 "The Clocks of Shenandoah" hands, 80-5-36 cleaning, 78-8-47 Book Review, 86-3-37 heat, repair, 82-1-24 fitting, 83-4-30, 83-5-38 Wiiding, John-autnar Hebdomas 8 -day, 78-12-14 repair, 86-12-35 Book Reviews: Helbros Watch Co., 86..S-6 ladies' diamond, 86-4-35 "How to Construct a Scissors Clock" Howard & Co ~ . 79-10·24 watch case 82-7-40 H. Samuel, 85-2-29 push buttons, 81-9-22, 81-10-36 " How to Make a Congreve Clock" 77-8·46 Illinois, 78-4-12 servicing, 85-1-28 " How to Make a Simple 16th Centruy Style Watch Co., 77-8-12 springs, 82-5-20, 82-6·16 Clod<" 80-6-62 lnd9P&ndent Watch Co., 78-5-27 ''Watch Collector's Handbook, The" Willard , William S., 81-9-24 by N. Cutmore International Watch Co., 81-7-31, 82-5-34, Williams, Gary-author 83-11-16 Book Review, 77-12-27 "Designing and 8uUd1,-.g 11 Grandhithf't Jacot, 77-2-26, 85-5-10 watch crystals, odd-shaped, 77-2-30 Clock" Jean Cardot, 83-2-32 "Watches and Clocks in the Sir David Salo­ Book Review, 83-5-36 Johnson convertible, 80-10-38 mons Collection" Willsdon, John, 86-10-6 Joliet, 86-8-36 by George Daniels and Ohannes Markarian winder, 79-1-6 Jules Jurgensen, 80-7-30 Book Review, 85-9-33 mainspring, 77-12·12, 86-6-6

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