细节
A two-day mahogany marine chronometer, Kelvin, Bottomley & Baird Ltd, Glasgow, No.10133, circa 1919,
silvered dial signed Kelvin, Bottomley & Baird Ltd, Glasgow, No.10133, Roman hour numerals, subsidiary seconds and up-and-down dials, blued steel hands, fusee movement with cut bimetallic balance, two cylindrical heat compensation weights, white metal helical balance spring, Earnshaw escapement with spring foot detent and jewelled locking stone, gimballed brass bowl within two-tier brass bound mahogany box, the top section with vacant ivory plaque, flush brass handles, dial diam. 10cm, box 180mm. square, with a wooden outer deck box.
silvered dial signed Kelvin, Bottomley & Baird Ltd, Glasgow, No.10133, Roman hour numerals, subsidiary seconds and up-and-down dials, blued steel hands, fusee movement with cut bimetallic balance, two cylindrical heat compensation weights, white metal helical balance spring, Earnshaw escapement with spring foot detent and jewelled locking stone, gimballed brass bowl within two-tier brass bound mahogany box, the top section with vacant ivory plaque, flush brass handles, dial diam. 10cm, box 180mm. square, with a wooden outer deck box.