Swiss 18K rose gold open faced keyless lever watch Circa 1880

Rose gold gentlemen’s watch
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A Swiss 18 carat rose gold open faced keyless pocket watch made by Vacheron & Constantin in Geneva, circa 1880. The jewelled movement with a lever escapement. White enamel dial with black Arabic hours, an outer minute track, outermost red Arabic five minute numerals, sunk subsidiary seconds at 6 o’clock and spade hands. The plain case with a monogrammed, hinged back and cuvette, stepped bezels with a rope twisted outer border. Dial signed, case and movement signed and numbered.
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Diameter: 54 mm
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Signed: Vacheron & Constantin Geneva