Thomas Mercer Ltd eight day marine chronometer, no. 992N, si...

Thomas Mercer Ltd eight day marine chronometer, no. 992N, signed 5" silvered dial with Arabic numerals, outer minute track, eight hour power reserve indicator over a constant seconds dial, blued steel hands, brass full plate fusee movement with maintaining power, Earnshaw type spring detent escapement and split compensated balance with a helical hairspring, in a brass case with a sliding winding hole shutter and gimbal mount within a square glazed mahogany case bearing the brass plaque inscribed 'R.F Whitten 403 Hunter Street, Newcastle. N.S.W', 8.25" (with key)

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