Swiss 18 carat rose gold open faced keyless watch Circa 1950

Rose gold gentlemen’s pocket watch
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A very fine and rare Swiss 18 carat rose gold open faced keyless pocket watch made by Vacheron & Constantin, circa 1950. The movement with a lever escapement. Rose gold dial with applied Roman and baton hour markers, an outer minute track, subsidiary seconds at 6 o’clock and sword hands. A plain case. Dial signed, case and movement signed and numbered.
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Diameter: 47 mm
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Signed: Vacheron & Constantin Genève Swiss