Patek Philippe & Cie., Genève, No. 132670, case No. 263555, made for Spaulding & Co., Chicago, U.S.A., circa 1910. Very fine 18 ct. gold keyless pocket chronometer, in original mahogany fitted box, awarded the Mention Honorable with 627/1000, with photocopies from the records of the timing contest organised at the Observatory of Geneva in 1910. | Important Watches, Wristwatches and Clocks | Geneva, Hotel Des Bergues, 10th April 1994

Important Watches, Wristwatches and C...

Geneva, Hotel Des Bergues, Apr 10, 1994

LOT 379

Patek Philippe & Cie., Genève, No. 132670, case No. 263555, made for Spaulding & Co., Chicago, U.S.A., circa 1910. Very fine 18 ct. gold keyless pocket chronometer, in original mahogany fitted box, awarded the Mention Honorable with 627/1000, with photocopies from the records of the timing contest organised at the Observatory of Geneva in 1910.

CHF 10,000 - 12,000

C. Four body, massive, "demi-bassine", polished, the back chased with Art-Nouveau decoration. Gold cuvette, engraved with a dedication dated 1910. D. White enamel with Breguet numerals, outer red Arabic minute ring and sunk subsidiary seconds. Gold " Louis XV" hands. M. 17"', "Extra quality", rhodium plated, "fausses côtes" decoration, 21 jewels, counterpoised straight line lever escapement, cut bimetallic balance, "Extra" adjustment by C. Batifolier, Breguet balance spring with swan neck micrometric index. Signed on the dial, case and movement. In very good condition. Diam. 47 mm.

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Timing Contest: - Mean average daily rate +/- 0,21 - Restart period + 0,16 - Error of compensation per degree C +/- 0,082 - Mean error in 6 positions +/- 0,51 This chronometer with 627 marks was the 90th out of 106 classified with more than 600 marks. The first one with 866 and the last one with 600, the maximum being 1000 marks.