Swiss fine and early gentleman’s keywind watch Circa 1800

Gold open faced pocket watch by Vacheron & Constantin
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A gentleman’s fine and early Geneva keywind pocket watch, circa 1800.
18 carat gold engine turned case with signed gold dome and case maker punch mark “LG”. Signed enamel dial with Arabic numerals and lozenge hands. Full plate movement, frosted, gilt, signed, verge escapement, three-arm brass balance, blued balance spring, engraved, pierced balance bridge.
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Diameter: 52 mm
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Weight: 96 g
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Signed: Vacheron & Constantin à Genève