M81 QUARTZ BATIERY CLOCK MOVEMENT NEAR PURE ACCURACY • 4,194,304 Hz Quartz Crystal Oscillator. • Accurate to±1 minute a year (59°tO 77°F). • Operational Range 14°F to 122°F (-10°C to +50°C). • Slide Switch, exact to the second setting. • Movement Size: 80 X 60 X 27 mm. SECOND HAND, IF USED, ADVANCES AT PRECISE ONE SECOND INTERVALS. A PRICE BREAK FROM CAS-KER CO. You will find the QZB movement in new clocks retailing at '1 000° and up. Volume production for new clocks lowers the per unit cost of manufacturing and we pass the savings to you. 1 or 2 @ $11.95 each PRICES INCLUDE POLISHED BRASS HANDS, ETC. 3 to 9 @ $10.50 each 10 to 24 @ $9.75 each I CARTON OF 25 at $8.40 each I M80 TRANSISTORIZED MOVEMENT The Movement That Is Known for Excellent Quality, Durability and Long Life! • A favorite of manufacturers, this movement offers highest reliability and, from Cas­ Ker Company, a favorable price to the repairman. e M80 movements are more accurate than most: accurate within 10 seconds per day powered by the same battery for over a year! • A most useful replacement clock movement for the repairman. It operates small Stock table clocks to large wall clocks. No. M80 Prices Include Polished Brass Hands, Mounting Nuts, Hangers, etc. ITWO YEAR GUARANTEE! 1 or 2 @ • • • • • • • • • • • • • • $8.00 each 3 to 9 @ • • •••••••••••• $7.50 each CARTON of 25 at $6.00 each 10 to 24 @ •••••••••••••• $7.00 each Hands Included Sweep Second Hands with MSO and M81: 30¢ Each Additional. Add $1.50 for Shipping Orders. Executive & Editon'al Offices AWl Central P.O. Box 11011 L 3700 Harrison Avenue Cincinnati, Ohio 45211 Telephone (513) 661-3838 Harold J. Herman ........... Editor Thomas J. Herman..... Managing Editor Volume II, Number 8 September 1978 Patricia Borger .......Associate Editor Mildred Howard ... Circulation Manager Official Publication of the American Watchmakers Institute Paula Hill. Art Director Michael Danner. Business Manager Lee Rothan . ..... Circulation CONTENTS Technical Editors FEATURES Henry Fried Les Smith THE PRESIDENT'S MESSAGE Orville Hagans Jerry Jaeger by Orville R. Hagans .................................. 4 William 0. Smith, Jr. Jim Broughton Jim Tigner Bob Nelson THE ESSENCE OF CLOCK REPAIR Pat Monk Ewell Hartman The Double Fusee English Wall Clock by Sean C. "Pat" Monk . 8 Marvin Whitney Joe Crooks QUESTIONS AND ANSWERS Officers Wooden Wheel Clock by Henry B. Fried ................. 12 Orville R. Hagans CMW ,CMC. President Leslie L. Smith,CMW .... .. 1st V.P. FASTER TIMING AND TESTING-BY ANALOG Joe Crooks.............. 2nd V.P. by Ewell Hartman . .................................. 16 Karl Buttner CMW ....... .. Secretary Marvin Whitney CMW ,CMC. Treasurer IN THE SPOTLIGHT One Wheel Clock by Orville R. Hagans .... .............. 20 Directors THE SHIP'S CHRONOMETER Joe Crooks by Marvin E. Whitney ............ ................... 24 Henry B. Fried CMW, CMC Ewell Hartman CMW INSIDE THE CLOCK SHOP Gerald G. Jaeger CMW The Graham Dead Beat Escapement by James L. Tigner . ..... 26 Donald Leverenz SIMPLE ADAPTER FOR MEASURING Charles H. Mann Sean C. (Pat) Monk CMW CURRENT CONSUMPTION Robert A. Nelson CMW by Edward F. Rice and Gerald G. Jaeger . ................. 30 Marshall Richmond CMW AFFILIATE CHAPTER COLUMN Leslie L. Smith CMW by Willard Blakley . .................................. 32 William 0. Smith, Jr. Marvin E. Whitney CMW, CMC AWINEWS Sources by Milton C. Stevens .......................... 34 Affiliate Chapter Director SCHOLASTICALLY SPEAKING Willard Blakley CMW by Deane L. Jenne .................. ................. 36 Research & Education Director WHAT CAN BE DONE TO ENTICE YOUNG PEOPLE INTO A Deane L. Jenne CMW CAREER OF WATCHMAKING AND JEWELRY REPAIR by Marvin Whitney .................................. 38 HOROLOGICAL TIMES is published monthly and copyrighted by the American Watchmakers EXTRAS Institute, Harold J. Herman, Editor. Subscrip­ tion, $25.00 per year, $4.00 per copy in the 47 ... .. ... .. New Products Bench Tip . ....... ..... 51 United States and $36.00 per year, $5.00 per 48 .. ......... Book Review Classified Ads ..... ...... 52 copy outside the United States. Second class 49 ........ .. New Members Dates to Remember. ...... 55 postage paid at Cincinnati, Ohio. Copyright © 50 ....... News in the Trade Advertisers' Index . ...... 56 1978 by American Watchmakers Institute. September 1978 Horological Times I OuR READERS WRITE Well Balanced Magazine I thoroughly enjoy the Horological Times. I find it a well balanced A photographer fights a battle in his search for per­ magazine-there is something for everyone in it. My wife (and I) enjoy fection. To stop action, the lens aperture is opened the beautiful covers each month-they are so beautiful and certainly and the shutter speed is increased. Action is stopped worthy of framing. Also, I find the blend of technical articles with but corner clarity and depth of field are sacrificed. news items and AWI news enjoyable. Each month when my copy arrives, I read it immediately from front to back. My compliments Close the aperture and decrease shutter speed. The on OUR magazine. photo has good depth of field and the comers show sharp, except the moving subject is blurred. So then, Thomas Smithers use a faster speed film so that a quick shutter speed New Orleans, Louisiana can be used and the lens aperture can be closed. Sorry, faster speed films are grainier than slow speed What page am I on? films and overall quality is affected. So of the tri­ angle of shutter speed, lens aperture, and film speed, First let me say that the content of Horological Times is very valuable to me as a watchmaker and clockmaker, however, I have one com­ only two conditions can be ideal. plaint. I've noticed that the pages featuring full-page ads do not have page numbers. What good then is your Advertisers' Index? This difficult triangle is faced daily by a top notch salesman in a business other than the jewelry and R.F. Moore repair industry. His success is attributed to integrity Chicago, Illinois and being candid. He says, "Price quality, service; (Editor's note: This problem will be remedied in a forthcoming issue.) pick any two." His customers are seldom disappoint­ ed and remain as loyal to him as he is to them. Where have you gone, Jerry Jaeger? With a watch or clock repair, if you estimate a low I am an avid reader of Horological Times. I have noticed that only upon occasion is a technical article by Gerald G. Jaeger included. I price and give a quality repair, can you give quick found those articles to be very informative and would hope to see service? If you estimate a low price and fast service, articles by Mr. Jaeger more often. I'm sure I represent a majority of can you give a quality job? If you promise fast service our readers' views on this subject. and a quality job, can you charge a low price? Should you promise all three comers of the triangle, check Leslie Abbott Philadelphia, Pennsylvania your financial position. It may not be as solid as it should be. Examine your approach to your customers (Editor's note: Our editorial staff will discuss your suggestion. Thank so that the transaction is beneficial to both of you. you for writing.) Compliments to James Tigner The articles by Mr. James Tigner which appear in your journal are About the Co11er outstanding-! know I can always count on his article to be well written and informative. M.T. Schirmer Los Angeles, California The cover of the September Ship's Chronometer issue features a picture of aspen trees near Lake City, I have been reading Horological Times from cover to cover since it Colorado. began a year and a half ago, and had to write to tell you how much I enjoy it. I think that the present series by Marvin Whitney on the ship's chronometer is especially worthwhile. The information given in his series is well worth the price of the magazine. Keep up the good work, Mr. Whitney. Irvin Messerschmidt Miami, Florida 2 Horological Times September 19 78 YOUR CHOICE­ NO MINIMUM for the roo~ EACH MODERN All in packages WATCHMAKER All fresh-guaranteed A BIG, All one price NEW, Save up to AFFORDABLE ~~~~~~~~~~~~----~50% BOOK OTHER RW42 303 WS14 Timex A 357 10L14 Bulova 288 RW44 301 WS11 TimexD 386 REPAIRING QUARTZ LED, LCD AND ANALOG RW47 384 WS10 WATCHES has a section on each, another on testing instru­ 10L125 ments. It gives detailed analysis and expert advice on re­ pairing the main calibres and modules currently in use. RW48 309 180 illustrated pages and 300 diagrams, tables and photo­ 393 graphs make it an indispensable problem-solver for the RW49 389 Watchmaker who must provide after-sales service for these RW51 387 W2 Bulova 214 watches, millions of which are now in use. 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