A gold keyless openface chronograph pocket watch, by Vacheron & Constantin
The engine turned dial with Arabic hour numerals and outer five minute markers, two subsidiary dials indicating minute register and constant seconds, and sweep centre seconds, in circular case, the chronograph function operated by a button in the crown, circa 1920, the case with engraved monogram
Dial and movement signed Vacheron & Constantin
A gold keyless openface chronograph pocket watch, by Vacheron & Constantin
The engine turned dial with Arabic hour numerals and outer five minute markers, two subsidiary dials indicating minute register and constant seconds, and sweep centre seconds, in circular case, the chronograph function operated by a button in the crown, circa 1920, the case with engraved monogram
Dial and movement signed Vacheron & Constantin
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