Collector's Pocket Watches, Wristwatc...

Noga Hilton, Geneva, Apr 12, 2003

LOT 308

Winnerl, No. 509, circa 1850.Fine and rare mahogany two-day marine chronometer with 49-hour power reserve indicator.

C.Brass bowl with glazed bezel secured by two screws, gimbaled in two-body mahogany box with glazed round window in the top under sliding lid, brass handles, corner plate for a key with original fluted-handle brass key, key-lock in front, gimbal ring locked by single arm protruding through the ring and boss on the bowl. D. Silvered, radial Roman hour numerals, outer minute ring, Arabic seconds on subsidiary dial at 12 o'clock, up-and-down indicator at 6 o'clock. Blued steel Breguet hands. M. 63mm., brass full plate, turned pillars, secured by screws, reversed fusee and chain, Earnshaw spring-detent escapement, cut bimetallic compensation balance with two round weights and four screws, blued-steel free sprung helical balance spring with outer terminal curves.Signed on the dial and box, numbered on dial, movement and box.Bowl 78 mm. in diameter, box 145 x 140 mm.