Very fine Swiss gold open faced ankerchonometer Circa 1875

Gold ankerchronometer by Vacheron & Constantin
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A very fine Swiss 18 carat gold open faced ankerchronometer pocket watch, circa 1875. Rare quality ankerchronometer movement, special fine adjusting device, extremely long regulator hand, wolf’s toothing, solid gold wheels. White enamel dial with Roman hours and outer minute divisions, subsidiary seconds, and blued steel hands. Plain case, reeded band. Case numbered, dial and movement signed, cuvette signed and numbered, case and movement with matching numbers.

Diameter: 49 mm
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Weight: 96 g
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Signed: Vacheron & Constantin Geneva Timekeeper