A two-day marine chronometer the silvered dial signed and numbered Joseph Sewill, 61 South Castle St, Liverpool, Maker to the Admiralty 5903 Roman hour numerals, subsidiary seconds and up-and-down dials, blued steel hands, Earnshaw escapement, cut bi-metallic balance with cylindrical heat compensation weights, palladium helical balance spring, spring foot detent with jewelled locking stone, brass bowl gimballed in brass-bound three tier mahogany box, the middle section with inset bone ivory disc inscribed Joseph Sewill 5903, Liverpool, flush recessed brass carrying handles, dial diameter -- 4¼in. (10.5cm.); Case -- 7¼in. (18.2cm.)

Details

A two-day marine chronometer the silvered dial signed and numbered Joseph Sewill, 61 South Castle St, Liverpool, Maker to the Admiralty 5903 Roman hour numerals, subsidiary seconds and up-and-down dials, blued steel hands, Earnshaw escapement, cut bi-metallic balance with cylindrical heat compensation weights, palladium helical balance spring, spring foot detent with jewelled locking stone, brass bowl gimballed in brass-bound three tier mahogany box, the middle section with inset bone ivory disc inscribed Joseph Sewill 5903, Liverpool, flush recessed brass carrying handles, dial diameter -- 4¼in. (10.5cm.); Case -- 7¼in. (18.2cm.)
See illustration

Lot Essay

This chronometer was made by Thomas Mercer in 1938; the bowl, dial-plate and frames are inscribed with thier works number 15046

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