VOLUME 4, NUMBER 4 APRIL, 1980 ® ROLOGICAL Official Publication of the American Watchmakers Institute THE PRESIDENT'S MESSAGE Clockmakers. • • LESLIE L. SMITH 4 A Change of Scene to have AWINEWS MILTON C. STEVENS 6 New Bench Courses in Clock Restoration BENCH COURSE SCHOLASTICALLY SPEAKING JOSEPH RUGOLE 14 Keeping Up with the Times MARVIN E. WHITNEY 18 THE SHIP'S CHRONOMETER Don't Forget. • • Some Innovative Ideas and Design Changes in the Hamilton Chronometer To VOTE! HENRY B. FRIED 24 QUESTIONS AND ANSWERS Croton R23 Chronograph GLOSSARY OF SOLID STATE TERMS LOUIS A. ZANONI 26 A Glossary of Electronic Terms Used in We Salute ... Quartz Watches: Part II TECHNICALLY WATCHES MUSEUM DONORS! ARCHIE B. PERKINS 28 Watch Bands and Case Gaskets FRED S. BURCKHARDT 34 THE ROCK QUARRY A Key Ingredient: Enthusiasm! ROBERT F. BISHOP 38 AFFILIATE CHAPTER COLUMN Profile: The Horological Society of New York BASEL FAIR ... CLOCK CHATTER OTTO BENESH 42 Two Silent Verges and a Marriage it must be APRIL! Not Made in Heaven CHIME AND STRIKE STEVEN G. CONOVER 44 The Seth Thomas Sonora Chime IN THE SPOTLIGHT ORVILLE R. HAGANS 50 Lust's Astronomical Clock PICKLE BARREL MARSHALL F · RICHMOND 54 Changing Heads, Tops, Bezels, and Replacing Sides and Shanks DEPARTMENTS Our Readers Write/ 16 JOSEPH RUGOLE 60 WATCH ADJUSTMENTS New Members/ 48 Hairspring Vibrating A WI Bench Courses / 49 Bench Tips / 58 Book Review / 59 Horological Times ISSN0145-9546 is published monthly and copyrighted by the American Watch­ makers Institute, Harold J. Herman, Editor, 3700 Harrison Avenue, Cincinnati, Ohio 45211. Reprint­ New Products / 62 ing and reproduction is prohibited without permission from the American Watchmakers Institute. News in the Trade / 62 Subscription, $30.00 per year, $4.00 per copy in the United States and $36.00 per year, $5.00 per Museum Donors/ 67 copy outside the United States. Second class postage paid at Cincinnati, Ohio. Copyright©1980 by Classified Ads / 70 the American Watchmakers Institute. Advertiser's Index / 72 Dates to Remember/ 72 Executive and Editorial Offices AWi Central P.O. Box 11011 3 700 Harrison Avenue Cincinnati, Ohio 45211 GOLD, SILVER, Telephone: (513) 661-3838 AND MEASURES Harold J. H~rman: Editor Thomas J . Herman: Managing Editor During the past months, you probably have had and still are having Virginia C. Montgomery: Associate Editor customers approach you in your establishment wanting to sell gold and thus turning the customer-proprietor relationship 180°. Up to now, two LuAnn Martin: Art Director Sue Scott: Business Manager items not seen in every jewelry store were nitric acid and aqua regia. Today, they are necessary if you become your customer's customer. Exact deter­ Mildred Howard: Circulation Manager mination of gold content is essential if you don't want to lose your shirt. Lee Rothan: Circulation Should you presently not have a Troy ounce scale, or have one that does not Technical Editors: cover the heavier weights of some of the items brought to you (especially Otto Benesh Archie B. Perkins James H. Broughton Marshall F. Richmond silver), your mailing scale (Avoirdupois) can give you a fairly accurate Fred S. Burckhardt Joseph Rugole weight of the item. The following chart can help you in determining Steven G. Conover Leslie L. Smith Troy weights. ill:ill Joe Crooks William 0. Smith, Jr. Paul Fisk Jam es L. Tigner Henry B. Fried Marvin E. Whitney TABLE FOR CONVERTING Avoir. Troy Orville R. Hagans AVOIRDUPOIS WEIGHT TO Lbs. Ozs. Ewell D. Hartman Gerald G. Jaeger TROY OZS. 1 .. ... ........ 14.58 oz. Sean C. Monk 2 . ... ....... .. 29.16 oz. Robert A. Nelson 3 ... ... ......... 43.75 oz. 4 .. ............ 58.33 oz. A WI Officers: Leslie L. Smith, CMW, CEWS: President 5 ....... ....... 72.91 oz. Joe Crooks: 1st Vice President 6 . .. .. .... 87.50 oz. Karl Buttner, CMW: 2nd Vice President 7 ... ........... 102.08 oz. Charles H. Mann: Secretary Avoir- Marvin E. Whitney, CMW, CMC: Treasurer Dupois Troy 8 .... .. .. .. 116.66 oz. Ozs. Ozs. 9 .. ... .. ... 131.25 oz. A WI Directors: 1 . ... ... .. .....91 oz. 10 .. .. ....... 145.83 oz. Dorothy M. Aderman 2 ... .. .. ..... 1.82 oz. 11 . ....... .. 160.41 oz .. Joseph G. Baier, Ph.D. James H. Broughton, CEWS 3 .. .. .... ....... 2.73 oz. 12 .... ....... 175.00 oz. Henry B. Fried, CMW, CMC 4 .. ... .... 3.64 oz. 13 . ... ...... 189.58 oz. Ewell D. Hartman, CMW 5 .. ... .. ... .... 4.55 oz. Gerald G. Jaeger, CMW, CEWS 14 .... .. ...... 204.16oz. Donald W. Leverenz, CMW 6 . ... ... .. 5.47 oz. 15 .... .... .. 218.75 oz. Sean C. Monk, CMW' 7 . .. ... .. ... 6.38 oz. 20 . ..... .... 291.66 oz. Robert A. Nelson, CMW, CEWS Eric R. Samuel, CMW 8 . .. .. .. .. ..... 7.29 oz. 25 . ........... 364.58 oz. 9 . .. .. .... 8.20 oz. 30 .. .......... 437.50 oz. Robert F. Bishop: Affiliate Chapter Director 10 .. ... 9.11 oz. 35 .. ..... 510.41 oz. 11 ...... .... ... 10.02 oz. 40 .... ...... 583.33 oz. Joseph Rugole, CMW : Research and Education Council Chairman 12 ..... .. ... 10.93 oz. 45 .... ........ 656.25 oz. 13 .. .. ... 11.85oz. 50 .... .... ... 729.16 oz. Michael P. Danner: Administrative Director 14 ... .. .. .. 12.76 oz. 75 .. ......... 1093.75 oz. 15 . ....... .. .. 13.67 oz. 100 ... .. ...... 1458.33 oz. 2 Horological Times/April 1980 Quality Clock Movements # 300 Transistor Quartz Insert Movement Housed in a dust free cap­ # 450Quartz # 600 sule, this reliable move­ Complete W/Dial - Hands ment represents your best value today in a transistor clock movement. Runs for over a year on a single ·c· Precise timekeeping is now cell and accurate to within • available for the clock in­ 10 seconds per day. The 75 stallation and replacement low price combined with $ 5 . In Quantity trouble free service make markets. These units are this unit an exceptional $ 4 50 . ready to install quickly and value. • In Quantity economically Comes com­ 1 or2@$6.50-3to9@$6.00-10to24@ 2 3/8" x 2 13/16" x 7/8" plete with brushed brass $5.50-25 to 49@ $5.00-50 to 99@ $4.50 finished bezel-dial & hands. 1or2@ $18,95 each each. Write for quantities over 100. Extreme accuracy is now available Available in 3"-33/a" 4" diam. 3 to 9 @ $16.95 each ALMOST AS SMALL at very moderate cost for customers AS A WATCH! # 475 that demand precise time keeping. # 650 Quartz Insert Weighing only 1 .25 Tiny Quartz Movement Only ounces. this Versatile Quality features such as high quartz Movement will carry a oscillation of 4 . 194304 MHz. sweep second hand and run for over one year on a Assures reliable time keeping as single "AA" cell-only well as accuracy. The small di­ 9/16" thick this com­ The same movement as used pact unit can be fit into mensions are ideal for all jobs. Fully in the above insert complete. any type case or paneL A Runs on AA Pen lite Cells. Can 75 warranted for one year. single center nut enables $ 5 . In Quantity be installed 3 ways, friction, the movement to be easi­ fixing screw or case screws ly fixed to a dial. The hand 1 or2@$8.75-3to Only 23/a" diameter for easy setting knob, seconds 9@$7.50-10to24 1 or 2@ $8.75-3 to 9@ $7.50-10 to 24@ 1 or 2@ $11 .95 each setter, and battery com­ @$6.75-25 to 49 $6, 75-25 to 49@ $6.00-50 to 99@ $5. 75 installation in wood, metal or 3 to 9@ $10,95 each partment are convenient­ @ $6.00-50 to 99 each. Write for quantities over 100 ~ ceramics ly located on the back. @ $5.75 each­ Accurate to (±) 10 Write for quantities seconds per month. over 100. Electric Insert Movement # 500 Quartz # 575 # 100 Pendulum Complete with Dial-Hands-Cord Quartz Striking Pendulum 5 $ 9 . 0 In Quantity 81/4" x 55/e" This compact unit can be fitted into any type of en­ 24.00 In Quantity closure. case or panel. The pendulum does not affect This versatile and extremely accurate q uaitz accuracy of one movement with its beautiful chime minute per year, so that tones would be a welcome addition to 3%" 4" 5Vz" various lengths of 8 to 14 any room. Can be used with or without $5.70 $5.95 $6.20 inches may be used. Noise pendulum. Comes complete with hands from movement is negli- and pendulum. A clock movement ready to incor­ gible, only ticking sound •Chimes on half hour-Counts on hour porate into •a case of your own •Accurate to ± 10 seconds per month of pendulum can be heard. design. A complete unit with dial •Runs for 2 years on ·o· alkaline cell and hands, covered by glass for de­ 1or2@ $13.95-3 to 9@ $12.75-10 to 24@ •Chimes can be silenced by pushing lever •Dependable-Fully guaranteed for one year pendability and ease of installation. $11 .75-25 to 49@ $10.50-50 to 99@ $9,50. Versatile because of a variety of Write tOr quantities over 1 OOa 1 or 2 @ $27.95-3 to 9 @ $25.95-Canon of 10 $24.00 mounting techniques. DELIVERY FROM STOCK - PRICES INCLUDE HANDS - USE COUPON BELOW PLEASE SEND MOVEMENTS AS LISTED PLUS $1.50 FOR DELIVERY. # 300 TRANSISTOR MOVEMENTS @------­ # 475 TINY QUARTZ MOVEMENTS @------­ # 450 QUARTZ MOVEMENTS @------­ # 600 # 650 @ ~~~~~~~- # 500 QUARTZ PENDULUMS @ ------­ .. # 575 QUARTZ STRIKING PENDULUMS @------­ # 100 ELECTRIC MOVEMENTS @ ~~~~~~~- We also stock numerals-markers Check here for booklet. # 300-450-500 available in Reg. Post (to 3/a" thickness} and Line Post (to %"thick}. NAME ADDRESS CITY STATE ZIP 1 u u u• u U• • ••• m *--~~~- ~- ~J~~;t;;1·:~~~;~~~~~:,;; _~~ ---- UUU• mu u April 1980/Horological Times 3 President's Message/ Leslie L. Smith, CMW, CEWS On the front A Change of Scene .