Important Collectors Wristwatches Po...
Geneva, Hotel Des Bergues, Oct 21, 1995
LOT 484
C. Koppen, French, circa 1830. Fine and rare 18 ct. watch with unusual keyless winding.
CHF 5,000 - 6,000
Sold: CHF 5,750
C. Three body, "forme quatre baguettes", engineturned. D. Silver engine-turned with Roman numerals on a matt chapter ring. Gold "spade" hands. M. 20"', gilt brass, bar calibre with going barrel, cylinder escapement, plain gilt brass threearm balance, flat balance steel with regulator. Early and very unusual keyless winding system by means of a Breguet pattern crown on the pendant with subsidiary hand setting at chapter VI, with disengaging detent in the band. Signed on the dial. In very good condition. Diam. 51 mm.
Notes
Very rare early foret of keyless winding much earlier
than those of Adrien Philippe and Louis Audemars.