Important Collector's Wristwatches an...

Hong Kong, Hotel Furama Kempinski, Jun 14, 1995

LOT 216

L. Leroy & Cie., Horlogers de la Marine, 7, Boulevard de la Madeleine, Paris, No. 67829, circa 1910. Fine 18 ct. gold, keyless pocket chronometer with Bulletin de l'Observatoire National de Besançon No. 8773, awarded at the timing contest organised in 1911.

HKD 17,000 - 21,000

USD 2,200 - 2,800

C. Three body, massive, "demi-bassine", polished, the back engraved with the monogram "J.R." and engraved inside with the date: 12 juin 1912. Hinged gold cuvette. D. White enamel with Roman numerals and sunk subsidiary seconds. Gold " spade" hands. M. 18-, gilt brass, 19 jewels, straight line lever escapement, cut bimetallic balance, blued steel balance spring with terminal curve. Signed on the dial, case and movement. In very good condition with photocopies of the timing certificats. Diam. 49 mm. Estima te: HK$ 17'000 - 21'000 US $ 2'200 - 2'800


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Notes

Timing Contest: US $ 8'000 - 9'000 - Mean average daily rate +/- 0,50 - Error of compensation per degree C +/- 0,04 - Mean error in 2 positions - 0,92 The movement of this watch carries the viper's head punch-mark signifying that it had fulfilled the requirements to obtain an Observatory timing certificate.