11,500 CHF
Breguet No. 817, "Demi-Chronomètre", sold to the French navy, circa 1860, for 600 Francs. Fine small 30 hour going deck chronometer with power reserve indication. Three body mahogany deck-watch type box. Brass bowl with screwed bezel. Frosted and silvered with Roman numerals, subsidiary seconds and up-and-down scale. Gilt brass " spade" bands. Brass full plate with cylindrical pillars, fusee and chain, the barrel passing through the back plate, and secured by a bridge, Earnshaw type spring detent escapement, twoarm compensation balance with cylindrical weights and timing screws, free sprung polished steel helical balance spring with terminal curves, diamond end-stone. Signed on the dial. In very good condition. Dial diam. 70 mm.
Auctioneer:
Antiquorum
Date:
1995-04-22
