Important Watches, Wristwatches and C...

Geneva, Hotel Des Bergues, Oct 18, 1997

LOT 373

Dubey & Schaldenbrand, "Index Mobile", 1950's. Fine yellow gold and stainless steel gentleman's wristwatch with round button split-second chronograph, register and tachometer.

CHF 2,000 - 2,500

Sold: CHF 3,910

C. massive, polished, teardrop lugs, gold case, stainless steel back. D. satined silver with applied gold indexes and Arabic numeral + auxiliary seconds and 30 minutes register dials, outer tachometer graduation. "Baton " gold hands. M. 13" ' rhodium plated, 17 jewels, lever escapement, monometallic balance, antishock system, self compensating flat balance-spring, the coaxial single button on the winding-crown is for start stop and return to zero functions of the split second chronograph. Signed on the dial. Diam. 37 mm.


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Grading System
Grade: B

Fair
Case: 1

As new
Movement: 1

As new
Dial: 1-51

As new

Partially reprinted

Notes

Split second chronograph, Swiss patent No. 260791. Split second chronographs exist only with either a minute counter or with minute and hour counters. Georges Dubey and Rene Schaldenbrand of La Chaux-cle-Fonds, Switzerland, patented ( No. 260791) a simplified form of the split second chronograph, which had two stoppable chronograph hands, but they were visibly connected to each other by a fine coil spring. The split hand could be stopped only as long as the button in the crown was held clown; as soon it was released, the hand would immediately spring after the moving chronograph hand. In this system, only events of no more than 60 seconds duration could be timed. These double-hand chronographs have a minute counter in conjunction with the chronograph hands. Such chronographs were described and illustrated by Gerd-R. Lang and Reinhard Meis in "Chronograph Wristwatches to stop Time, Schiffer Publishing Ltd. pp 21,52,53 and illust rated p. 175.