Important Collectors’ Wristwatches, P...

Geneva, Mandarin Oriental Hotel Du Rhône, Nov 12, 2006

LOT 218

?Pivoted Detent Chronometer? B. Poitevin, Paris, No. 6658, retailed by S. Fournier, H.ger M.cien, New Orleans, ebauche by Louis Audemars. Made circa 1865. Very fine and very rare, early keyless, 18K gold, hunting cased pocket watch with pivoted detent chronometer escapement.

CHF 3,700 - 5,700

EUR 2,300 - 3,500 / USD 3,000 - 4,500

C. Four-body, ?bassine et filet?, engine-turned covers with polished borders, the front cover with small central monogram, reeded band, flat-top winding crown, hand setting button at 2 o?clock. Hinged gold cuvette. D. White enamel with radial Roman numerals, outer minute track, subsidiary seconds. Blued steel ?Breguet? hands. M. 40 mm., 18???, nickel plated, ?fausses cotes? decoration, 19 jewels, wolf?s tooth winding, gold wheel train, Earnshaw chronometer escapement with pivoted detent, the escape wheel and pivot with gold endplates, and cut bimetallic compensation balance, blued steel Breguet balance spring, index regulator. Cuvette signed, interior of front cover punched ?L Bole P..?, dial plate punched with Poitevin?s mark. Diam. 48 mm.


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Grading System
Grade: AA

Very good
Case: 3-15

Good

Slightly rusted
Movement: 3*

Good

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

Good

HANDS Original

Notes

The present watch has the early form of keyless winding derived from Adrien Philippe?s system supplementary to French patent No. 46951 of 27th September 1861. This winding has coasting and works on the principle of the Breguet key, only by this means did it become possible to switch from winding to hand-setting by means of a button in the case band.