细节
Rivers & Son. A Fine 18 Gold Openface Keywound Pocket Chronometer with Helical Hairspring
Signed Rivers & Son, Cornill, London, Case No. 7227 and Stamped FR&C, Early 19th Century
Full plate gilt-finished detent chronometer movement, chain fusée, free sprung balance with wedged weights, blued steel balance spring, diamond endstone, cream enamel dial, Roman numerals, subsidiary seconds, polished circular case, coin-edged band, geometric motif to the bezel and rim, movement signed
57mm diam.