Swiss gold and platinum open faced lever fob watch Circa 1905

Gold and platinum decorated fob watch by Vacheron & Constantin
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A fine Swiss 18 carat gold and platinum open faced keyless lever fob watch, circa 1905. Gilt movement, 12 jewels, straight-line lever escapement, cut bimetallic compensation balance, flat balance spring. Gold hinged cuvette. White enamel dial, alternate radial stylized Arabic numerals and gold stars, outer gilt minutes, red 12 numeral, central gold and silver pattern and original mixed gold hands. Case with foliate decorated bezel and band, the reverse with foliate and applied platinum floral design. Dial, case and movement signed, case and movement numbered.
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Diameter: 30 mm
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Signed: Vacheron & Constantin Genève