Details
A George IV silver pocket chronometer
James Tupman, No. 1441, circa 1827
The white enamel dial signed and numbered TUPMAN 1441, Roman hour numerals, blued steel hollow lance hour and minute hands, subsidiary seconds dial intersecting VI with blued steel hand, 18,000 count train, screwed gilt full-plate movement inscribed Tupman. Great Russell Strt. Bloomsbury No. 1441, Earnshaw escapement, free sprung, cut bimetallic balance with segmental heat compensation weights, flat blued steel balance spring, dovetail detent with jewelled locking stone to side of banking block, in silver case with gold hinged bezel, back and cuvette
50 mm. dial diam.
London, 1827, casemaker H.G