THOMAS MERCER, ST. ALBANS. No. 923. A MID 20TH CENTURY EIGHT-DAY MARINE CHRONOMETER

THOMAS MERCER, ST. ALBANS. No. 923. A MID 20TH CENTURY EIGHT-DAY MARINE CHRONOMETER the brass gimballed drum-shaped case enclosing a 5" matt silvered engraved dial with subsidiary seconds and power reserve, signed and numbered. The high-quality eight-day chain-driven fusee movement with chequered plates and ring-turned pillars, Harrison maintaining and bimetallic weighted balance wheel with Earnshaw type detent escapement; all fitted in the original mahogany case with original locking key and tipsy winding key

21cm high, 21cm wide.