Fine mahogany two-day marine chronometer with winding indicator. Thomas Mercer, Ltd. London, No. 19851, circa 1950. Fine
C. Brass bowl with threaded glazed bezel gimbaled in two-body mahogany box with glazed panel in the top under a hinged lid with a catch, gimbal ring locked by a swiveling arm pressing sideways against the base of the cylinder, two-body mahogany outer carrying box. D. silvered, Roman hour numerals, outer minute ring, Arabic seconds on subsidiary dial at 6 o'clock, up/down indicator at 12 o'clock. Blued steel "Spade" hands. M. 82 mm., gilt brass full plate with recess for the mainspring barrel, circular pillars secured by screws, fusee and chain, 13 jewels, detachable Earnshaw spring-detent escapement, bimetallic ovalizing Volet compensation balance with free-sprung helical balance spring with terminal curves, four cylindrical temperature adjustment weights, two mean time adjustment nuts, jeweled to the third wheel. Signed on the dial and movement, case with a plate engraved "supplied by C.L. Malmsjoe Soedra Hamngatan, Goteborg". Height 16 cm., width and depth 18 cm.
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