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Circa 1870
Sold
172mm. square box
A good exhibition quality ebony-cased two-day marine chronometer. DIAL The 94mm. silvered engraved brass dial has Roman chapters with outer Arabic minute ring, gold spade hands. The centre is signed F. Rotig Havre No. 162 with up-and-down sector at XII calibrated 0-56 with blued steel hand, seconds ring at VI. MOVEMENT The full-plate movement is has spotted plates, chain fusee and spring barrel, the escapement with cut bimetallic balance with circular heat compensation weights, blued steel helical balance spring and Earnshaw-type spring detent escapement with jewelled locking stone. BOX Brass bowl punch-numbered 59 to the inside with spring-loaded winding cover to the underside, gimbal and locking arm, three-tier brass-bound ebony-veneered box with enamel plaque to the centre section signed F. Rotig 162, vacant brass cartouche in the top lid with velvet lining to the inside, brass inset handles to the sides, original brass tipsy winding key.