Details
A 19 Centuary two-day marine chronometer
the silvered dial signed and numbered Webster & Son, Cornhill, London 912, Roman hour numerals, subsidiary seconds dial with blued steel hand and up-and-down dial with gold hand, gold hour and minute hands, Earnshaw escapement, cut bi-metallic balance with cylindrical heat compensation weights, blued steel helical balance spring, spring foot detent with jewelled locking stone in a brass gimball mounted bowl mounted in a brass bound three tier mahogany box, the top lid possibly a replacement the middle section with inset oval bone ivory disc inscribed 912, flush recessed brass handles -- 7 1/8in. (18cm.) square, dial dia -- 3 5/8in. (9.2cm.)
See illustration
the silvered dial signed and numbered Webster & Son, Cornhill, London 912, Roman hour numerals, subsidiary seconds dial with blued steel hand and up-and-down dial with gold hand, gold hour and minute hands, Earnshaw escapement, cut bi-metallic balance with cylindrical heat compensation weights, blued steel helical balance spring, spring foot detent with jewelled locking stone in a brass gimball mounted bowl mounted in a brass bound three tier mahogany box, the top lid possibly a replacement the middle section with inset oval bone ivory disc inscribed 912, flush recessed brass handles -- 7 1/8in. (18cm.) square, dial dia -- 3 5/8in. (9.2cm.)
See illustration