13,800 HKD
L. Leroy & Cie., Horlogers de la Marine, 7 Boulevard de la Madeleine, Paris, No. 2769/70078, cir ca 1912. Fine 18K gold keyless pocket lever chronometer, Bulletin de Premiere classe de l'Observatoire National de Besancon, No. 9288, in 1913, with a total of 142.2 marks, in original fitted leather box. Three body, massive, "bassine", polished. Hinged gold cuvettc. White enamel, with Arabic numerals, outer Arabic minute ring and sunk subsidiary seconds. Gold "spade" hands. Notes Timing Contest: - Mean average daily rate = 3,54 - Error of compensation at 20° = 0,139 - Mean error in 2 positions - 3,21 - Restart period ± 0,74 The punch mark in form of a viper's head is set by the Observatory of Besancon on watches successful at the contest and awarding the Bulletin de Premiere classe.
Auctioneer:
Antiquorum
Date:
1997-06-09
