Swiss 18 carat gold open faced keyless pocket watch Circa 1910

Gold gentlemen’s watch
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A Swiss 18 carat yellow gold open faced keyless pocket lever chronometer made by Vacheron Constantin SA in Geneva, circa 1910. A solid, plain case. White enamel dial with Arabic hour numerals, outer minute track, subsidiary seconds at 6 o’clock and gold spade hands. A gilded brass movement with going barrel, gold screwed chaton on the central wheel, straight line lever escapement, compensated balance with gold poising screws and blued steel hairspring with terminal curve, and an index regulator with swan neck spring and micrometric screw. Dial, case and movement are signed.
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Diameter: 57 mm
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Signed: Chronomètre Royal Vacheron & Constantin Genève