Important Watches, Wristwatches and C...

Geneva, Hotel Des Bergues, Oct 18, 1997

LOT 329

L. Leroy & Cie. No. 1199, case No. 10224, made in 1914. Very fine and elegant 18K gold, keyless pocket chronometer, with chronograph and instantaneous 60 minute recorder. Bulletin de Premiere classe de l'Observatoire National de Besancon, No. 1199, in 1914.

CHF 6,500 - 7,500

Sold: CHF 7,475

C. Three body, massive, "Empire", polished, the back with the blue champleve enamel initials "H.M.S." within a white enamelled circular line.Hinged gold cuvette. D. Gold engine turned with Breguet numerals on a matt chapter ring, subsidiary dials for subsidiary seconds and minute register. Blued steel Breguet hands. M.18 "' , gilt brass with punch-mark in form of a viper's head set by the Observatory of Besancon, 23 jewels, straight line lever escapement, brass-invar Guillaume balance, blued steel balance spring with terminal curve adjusted by Grogg. Chronograph with visible work, the button on the winding crown. Signed on the dial, cuvette and movement. Accompanied by copies of the timing certificates. Diam. 50 mm.


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Grading System
Grade: B

Fair
Case: 4

Fair
Movement: 1

As new
Dial: 1-51

As new

Partially reprinted

Notes

Very fine example of a watch of the best quality, produced by L. Leroy & Cie. in the "Vieux style", in the 1910's. Timing Contest: - Mean average daily rate +/- 0,32 - Error of compensation at 20° +/- 0,136 - Mean error in 2 positions +/- 3,14