The Art of Patek Philippe, Legendary ...

Geneva, Hotel Des Bergues, Nov 14, 1999

LOT 435

Patek Philippe & Cie., Genève, No. 138620,case No. 252108, made for M. C., circa 1906.Very fine 18K gold keyless pocket lever chronometer, awarded a First Class Bulletin at the Observatory of Geneva in 1907-1908.

CHF 8,000 - 10,000

C. Four body, massive, "bassine", polished. Hinged gold cuvette engraved with initials of the owner and the awarded prize. D. White enamel with Breguet numerals, outer minute ring and sunk subsidiary seconds. Blued steel "spade" hands. M. 19''', Extra quality, rhodium plated, "fausses côtes" decoration,21 jewels, counterpoised straight line lever escapement, brass-invar Guillaume balance, Extra adjustment by J. Golay-Audemard, Breguet balance spring with Patek Philippe micrometric index patented on 13 January 1891.Signed on the dial, case and movement.Accompanied by photocopies from the records of the timing contest.Diam. 50 mm.


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Grading System
Grade: AAA

Excellent
Case: 6 - 14
Movement: * 3 -5-6

Poor

Slightly oxidized
Dial: 3 - 01

Notes

Timing Contest :- Mean average daily rate +/- 0,19- Restart period + 0,02- Error of compensation per degree C +/- 0,015- Mean error in 6 positions +/- 0,37With 254,5 marks, this chronometer was 3rd out of101 classified with more than 200 marks. The first one with262,8 and the last one with 200,9, the maximum being300 marks. 147 chronometers were registered for the contest.