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Circa 1860
Sold
150mm. square box
A mahogany two-day marine chronometer. The dial signed D. Coombe, No. 60 with subsidiary seconds at VI, no up-and-down sector. The full-plate movement has spotted plates with pillars pinned at the top plate, cut bimetallic balance with segmental heat compensation weights, blued steel helical balance spring and Earnshaw-type spring detent escapement with jewelled locking stone; three-tier mahogany box with brass drop handles to the sides.