Important Collectors’ Wristwatches, P...

Geneva, Mandarin Oriental Hotel Du Rhône, Oct 15, 2006

LOT 435

?Large One-Minute Tourbillon-First Prize Geneva Observatory 1938? Patek Philippe & Cie, Genève, No. 198412, case No. 617624. Movement made in 1930 and cased in 1938, sold on October 1, 1947. Extremely fine and exceptionally rare, large, 18K yellow gold keyless pocket lever chronometer with one-minute tourbillon regulator by Hector Golay, adjustment by Modoux, Guillaume balance, first prize winner at the 1938 Observatoire de Genève contest in category C (small chronometers). Accompanied by the Extract from the Archives.

CHF 200,000 - 250,000

EUR 130,000 - 160,000 / USD 165,000 - 200,000

Sold: CHF 221,500

C. Four-body, ?bassine?, polished, concealed hinge. Hinged gold cuvette. D. Brushed silver with applied yellow gold Breguet numerals, outer dot minute divisions, subsidiary seconds. Yellow gold ?Breguet? hands. M. 38 mm., 17???, rhodium-plated, ?fausses côtes? decoration, stamped twice with the Seal of Geneva Quality Mark, 18 jewels, one-minute tourbillon regulator by Hector Golay, polished steel cage and bridge, calibrated lateral lever escapement, Guillaume cut anibal-brass compensation balance adjusted to heat, cold, isochronism and five positions, peripheral temperature and meantime adjustment screws, blued steel Breguet balance spring, index regulator. Dial, case and movement signed. Diam. 48.3 mm.


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Grading System
Grade:
Case: 2

Very good

Movement: 2

Very good

Dial: 3-6-01

Good

Slightly oxidized

HANDS Original

Notes

The present watch was submitted for trial at the Observatoire de Geneve on three occasions:
1) 1933 achieving 782 points
2) 1938 achieving 669 points
3) 1943 achieving 830 points
The timing adjustments were made by F. Modoux, the famous ?regleur? of Patek Philippe. In 1938, this watch obtained the first prize in category C (small chronometers). Literature: Das Tourbillon, Reinhard Meis, Verlag Laterna Magica, 1986, p. 175.