Swiss 18 carat gold Art Deco lever pocket watch Circa 1930

Gold open faced Art Deco watch by Vacheron & Constantin
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A fine Swiss  18 carat gold open faced keyless winding Art Deco watch, circa 1930. Retailed by J.W. Benson. 18-Jewel manual wind lever movement adjusted to 8 positions.
silvered dial signed Vacheron & Constantin, Genève and J.W.Benson, London, with applied short gilt baton markers and Roman quarters, outer printed black five-minute markers, gilt sword hands, subsidiary seconds at 6. Polished 18 carat gold case. Case, dial and movement signed.
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Diameter: 48 mm
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Signed: Vacheron & Constantin, Genève