A TWO DAY MARINE CHRONOMETER

Details
A TWO DAY MARINE CHRONOMETER
SIGNED THOMAS MERCER, LONDON, NO. 8167

The spotted fusee movement with spring detent, free sprung with blued helical spring to bimettalic balance with paired cylindrical weights and timing screws, silvered dial with subsidiary seconds, roman chapters, 56-hour winding indicator and gold hands within a brass bowl gimbal mounted in glazed mahogany deck box, numbered on dial, movement and bowl--10.5cm diam of dial