Important Watches, Collector's Wristw...

Hotel Richemond, Geneva, Oct 13, 2001

LOT 739

Patek, Philippe & Cie., Genève, No. 820813, case No. 415807, circa 1927.Very fine and rare 18K gold keyless jump hour pocket watch.

CHF 12,000 - 16,000

USD 7,300 - 9,700

Sold: CHF 20,125

C. Four-body, "demi-bassine", polished, gold hinged cuvette. D. Matte champagne, aperture for Arabic jump hour numerals, outer minute ring with five minute Arabic markers, subsidiary sunk seconds. Blued steel "Breguet" hands. M. 37,3 mm (16 1/2 ```), nickel, 18 jewels, adjusted to five positions, heat, cold, and isochronism, lever escapement à moustache, cut bimetallic compensation balance, blued steel Breguet balance-spring, spring-loaded micrometric regulator.Signed on dial, case and movement.Diam. 46 mm.


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Grading System
Grade: AAA

Excellent
Case: 3

Good
Movement: 3*

Good

Overhaul recommended, at buyer's expense
Dial: 3 - 01

Notes

Patek Philippe pocket watches with jump hour mechanisms are rare. Although the company started experimenting as early as the 1880's, only a handful were produced and usually on special order. For instance, the preceding watch No. 820812, also with a jump hour feature, was made on the express order of Cowell & Hubbard Co., in Cleveland, Ohio.