A rosewood two-day marine chronometer, No. 2393, Charles Frodsham, London, circa 1865

3¼-inch silvered dial with subsidiary seconds and up/down dials, signed and numbered Charles Frodsham, 84 Strand, London, No. 2393, fusee movement with maintaining power, Earnshaw's spring detent escapement with compensation balance and helical spring, signed as the dial, the brass bowl gimbal-mounted in a brass-bound three tier case with swing handles, signed and numbered ivory plaques; together with a mahogany deck box