Swiss yellow gold watch Chronometro Gondolo Circa 1911

Gold Chronometro Gondolo watch by Patek Philippe
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A Swiss yellow gold open faced keyless watch Chronometro Gondolo made in 1911, retailed by Gondolo & Labouriau Rio de Janeiro, jewelled gilt lever movement, wolf tooth winding, cam-wheel regulation, gold signed and numbered cuvette.
White enamel dial, Roman numerals, outer track calibrated for minutes, subsidiary seconds, 18k yellow gold case, engine-turned back, case, dial, movement and cuvette signed.
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Diameter: 56 mm
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Signed: Patek Philippe & Cie Genève
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With an Extract from the Archives confirming sale in 1912.