Patek Philippe & Cie., Geneve, No. 198381, case No. 416638, made in 1930. Very fine and important 18 ct. pink gold, keyless pocket chronometer with one minute tourbillon regulator, awarded the First prize at the Geneva Astronomical Observatory for the timing contest in 1931. With the original antimagnetic stainless concours case, extra silvered two-tone dial and set of blue steel hands. In original fitted box and with the original Observatory Bulletin. | Important Watches, Wristwatches and clocks

Important Watches, Wristwatches and c...

Geneva, Apr 20, 1996

LOT 135

Patek Philippe & Cie., Geneve, No. 198381, case No. 416638, made in 1930. Very fine and important 18 ct. pink gold, keyless pocket chronometer with one minute tourbillon regulator, awarded the First prize at the Geneva Astronomical Observatory for the timing contest in 1931. With the original antimagnetic stainless concours case, extra silvered two-tone dial and set of blue steel hands. In original fitted box and with the original Observatory Bulletin.

CHF 220,000 - 240,000

Sold: CHF 245,500

C. Three body, massive, "bassine", polished with concealed hinge. Hinged gold cuvette. D. White enamel with bolt Breguet numerals and sunk subsidiary seconds. Blued steel "spade" hands. M. 21"', rhodium plated, "fausses cotes" decoration, with Geneva quality mark, 16 jewels, lateral lever escapement, brass-invar Guillaume balance, three heat and cold isochronism and five position adjustments by J. Golay-Audemars, blued steel balance spring with terminal curve. Three equidistant arm polished steel carriage made by James Pellaton. Signed on the dial, case and movement. In mint condition. Diam. 60 mm.

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Timing Contest : - S 6.52 - Restart period 0.06 - Error of compensation per degree C +/- 0.033 - S' 2.08 With 782 marks, this chronometer was the 13th out of 50 classified with more of 600. The first in the trial gained 856 and the last 604, on a possible maximum of 1000. 58 chronometers were entered for the contest.