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CHARLES FRODSHAM, LONDON, NO. 1559. CIRCA 1840
細節
AN EARLY VICTORIAN BRASS-BOUND MAHOGANY EIGHT DAY MARINE CHRONOMETER
CHARLES FRODSHAM, LONDON, NO. 1559. CIRCA 1840
95 mm. diameter silvered dial with subsidiary seconds and state-of-wind and signed 'CHARLES FRODSHAM/chronometermaker to the Royal Navy/London No. 1559', blued steel hands, movement with single chain fusee, Harrison maintaining power, spring detent escapement to cut bimetallic balance with segmental compensation weights, blued steel helical spring; tipsy winding key
The box -- 7½ in. (19 cm.) high
CHARLES FRODSHAM, LONDON, NO. 1559. CIRCA 1840
95 mm. diameter silvered dial with subsidiary seconds and state-of-wind and signed 'CHARLES FRODSHAM/chronometermaker to the Royal Navy/London No. 1559', blued steel hands, movement with single chain fusee, Harrison maintaining power, spring detent escapement to cut bimetallic balance with segmental compensation weights, blued steel helical spring; tipsy winding key
The box -- 7½ in. (19 cm.) high