Swiss rose gold open faced ankerchronometer Circa 1907

Rose gold lever pocket watch by Patek Philippe
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A heavy Swiss 18 carat rose gold open faced chronometer pocket watch, Chronometro Gondolo, circa 1907. Very fine ankerchronometer movement, wolf’s toothing, fine adjusting device, gold wheels. White enamel dial with Roman hours and Arabic five minutes, original rose gold hands. Engine-turned case. Dial signed, case numbered, cuvette and movement signed and numbered.
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Diameter: 56 mm
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Weight: 137 g
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Signed: Patek, Philippe & Cie Genève Chronometro Gondolo
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The largest and heaviest version of the famous Patek Philippe ankerchronometer made for Gondolo & Labouriau Relojoeiros, Rio-de-Janeiro.