Details
A ROSEWOOD TWO DAY MARINE CHRONOMETER
J. Troup, London, No.139, circa 1880
silvered dial signed J. Troup, 36, Hatton Garden, London, 139, Roman hour numerals, gold hour and minute hands, subsidiary seconds and up-and-down dials, Earnshaw escapement, spring foot detent, bimetallic balance with two cylindrical heat compensation weights, blued steel helical balance spring, gimballed brass bowl, rosewood brass bound box with brass drop handles
96 mm. dial diam., 172 mm. sq. box
J. Troup, London, No.139, circa 1880
silvered dial signed J. Troup, 36, Hatton Garden, London, 139, Roman hour numerals, gold hour and minute hands, subsidiary seconds and up-and-down dials, Earnshaw escapement, spring foot detent, bimetallic balance with two cylindrical heat compensation weights, blued steel helical balance spring, gimballed brass bowl, rosewood brass bound box with brass drop handles
96 mm. dial diam., 172 mm. sq. box
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