Collector's Pocket Watches, Wristwatc...

Noga Hilton, Geneva, Apr 12, 2003

LOT 302

Brockbanks, London, No. 422, hallmarked 1795-96.Very fine silver deck chronometer with detent escapement and amplitude control, in a fitted wooden box.

C.Three-body, massive "Consular", polished, spring-loaded bezel and back, back with engraved coat of arms. Three-tier box. D. White enamel, radial Roman numerals, outer minute track, subsidiary seconds. Gold "spade" hands. M. 52 mm., hinged, frosted gilt full plate, column pillars, fusee and chain with Harrison's maintaining power, 15 jewels, diamond endstone on the balance, Earnshaw type spring detent escapement, L-shaped detent, three-arm cut bimetallic compensation balance with sliding tempeature weights and steel mean time screws, blued steel helical balance spring with terminal curves, pivoted and spring-loaded amplitude safety device, single footed solid chased and engraved cock.Signed on dial, movement and box.Diam. 66 mm.