Patek Philippe & Cie, Genève, No. 868599, case No. 696511, Ref. 2499, circa 1955, produced in 349 examples from 1950 to 1985, among them very few with tachometer. The 3rd series finished in 1978, and from then the watch with sapphire crystal becomes Ref. 2499/100. Extremely fine and rare astronomic, 18 ct. gold gentleman's wristwatch with round button chronograph, register and tachometer, perpetual calendar and moon phases. | Important Collectors Wristwatches Pocket Watches & Clocks | Geneva, Hotel Des Bergues, 22nd April 1995

Important Collectors Wristwatches Po...

Geneva, Hotel Des Bergues, Apr 22, 1995

LOT 618

Patek Philippe & Cie, Genève, No. 868599, case No. 696511, Ref. 2499, circa 1955, produced in 349 examples from 1950 to 1985, among them very few with tachometer. The 3rd series finished in 1978, and from then the watch with sapphire crystal becomes Ref. 2499/100. Extremely fine and rare astronomic, 18 ct. gold gentleman's wristwatch with round button chronograph, register and tachometer, perpetual calendar and moon phases.

CHF 200,000 - 250,000

USD 160,000 - 210,000

C. massive, polished, concave bezel, crystal glass. D. mat silver with applied gold indexes. + auxiliary seconds and 30 minutes register dials, graduation for the days of the month, apertures for the days of the week, the months and the lunations. "Dauphine" gold hands. M. 13"` Q Geneva Quality Hall Mark, rhodiumed, "fausses côtes" decoration, 23 jewels, lever escapement, cut bimetallic balance adjusted to 8 positions, Breguet balance-spring, micrometer regulator. Dial, case and movement signed. In excellent condition. Diam. 37 mm.

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Usually, the Ref. 2499 by Patek Philippe bears a round buttons chronograph but no tachometer, and the 2499/100 bears square button chronograph and tachometer. Therefore, this model is extremely rare to find to-day. A similar watch is published in Collezionare Orologi Patek Philippe by M. and 0. Patrizzi, page 248.