細節
A 19TH CENTURY TWO-DAY MARINE CHRONOMETER BY McLACHLAN, NO.314, CIRCA 1860
the silvered dial signed and numbered M Lachlan London 314, Roman hour numerals, subsidiary seconds and up-and-down dials, blued steel hands, Earnshaw escapement, cut bimetallic balance, cylindrical heat compensation weights with vertical adjusting screws, blued steel helical balance spring, spring foot detent with jewelled locking stone, brass bowl and gimbal in plain three-tier mahogany box with inset drop handles and ivorine disc (unsigned) -- 7x 6¾ x 6¾in. (17.7 x 17.2 x 17.2cm.); Dial Diameter: 103mm.
See illustration