Fine Swiss silver open faced precision pocket watch Circa 1915

Silver excellently preserved duplex watch
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A fine Swiss silver open faced precision pocket watch made by Vacheron & Constantin in Genève, Switzerland, circa 1915. It has a lever movement, a plain case, an excellently preserved white enamel dial with Arabic hours, an outer minute track, subsidiary seconds at 6 o’clock and gold hands. Dial and cuvette signed, case numbered, movement signed and numbered.
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Diameter: 50 mm
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Weight: 85 g
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Signed: Vacheron & Constantin Genève