A silver hunting cased jump quarter seconds and centre seconds duplex pocket watch, Swiss, circa 1870,

細節
A silver hunting cased jump quarter seconds and centre seconds duplex pocket watch, Swiss, circa 1870,
white enamel dial with Roman numerals, centre seconds, subsidiary jump 1/4 seconds dial, frosted movement with duplex escapement, balance with blued steel bat's wing compensation weights, rubbed engine turned case with milled band, diameter 47mm.