Important Modern & Vintage Timepieces

Hong - Kong, Oct 09, 2010

LOT 115

Gustave Sandoz Pr ecision Watch with Fusee & Unusual Winding Gustave Sandoz, Horloger de la Marine Nat.le, Paris, No. 1725. Made circa 1870. Very fine and rare, 18K yellow gold, lever chronometer pocket watch with fusee and unusual winding and handsetting to improve precision.

HKD 30,000 - 45,000

USD 4,000 - 5,000 / EUR 3,000 - 4,500

C. Four-body, bassine et filets, polished, the back cover with engraved monogram, button at 1 for engaging the winding, at 11 for hand-setting. Hinged gold cuvette with aperture for regulation. D. White enamel with radial Roman numerals, outer minute track and Arabic five-minute numerals, subsidiary seconds. Blued steel spade hands. M. 19???, special caliber, matte gilt, fuse and chain with Harrison?s maintaining power, counterpoised straight line lever escapement, cut bimetallic compensation balance with gold meantime and temperature compensation screws, blued steel helical balance spring, the terminal secured by a stud with two screws, polished steel rack and pinion regulator. Cuvette signed.Diam. 50 mm


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Grading System
Grade: AA

Very good
Case: 3

Good
Movement: 2*

Very good

Overhaul recommended, at buyer's expense
Dial: 3-70-01

Good

ENAMEL AND VARIOUS TYPES OF DECORATION Hairline

HANDS Original

Notes

This watch uses fusee and chain power. Only precision watches such as chronometers were made with fusee by this date. This is because the fusee gives a more stable and consistent supply of power as it runs down, also the maintaining power provides power to the escapement during the winding process, again ensuring no loss of timekeeping. The winding is only engaged when the button at 1 o?clock is depressed. Gustave Sandoz Geneva and Paris. The firm apparently began in Paris and was listed there in 1867, 1870 and 1900. It won Second Prize and Honorable Mention at the Geneva Chronometer Contest in 1882.