Swiss 18K gold hunting cased chronometer with date Circa 1880

Gold pocket chronometer with date by Ulysse Nardin
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An extremely rare, very fine and heavy Swiss pocket chronometer with spring detent chronometer escapement and date, circa 1880.
Engine turned 18K gold à-goutte case with enamelled monogram J.P, very finely worked. Dome marked Chronometre. Original signed enamel dial in very good condition with Roman radial hours, outer minutes track, subsidiary dial for the seconds, date display, and blued steel hands. Very fine bridge movement with spring detent chronometer escapement.
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Diameter: 57 mm
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Weight: 168 g
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Signed: Ulysse Nardin