Heavy Swiss 18K gold open faced pocket chronometer Circa 1915

Gold lever watch by Patek Philippe
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A heavy Swiss 18 carat gold open faced pocket chronometer, Chronometro Gondolo, circa 1915. Ankerchronometer movement, gold wheels, chronometer balance, fine adjusting device, wolf’s toothing, moustache lever. White enamel dial with Roman hours and Arabic five minutes, subsidiary seconds, gold hands. Engine-turned case. Dial signed, case numbered, cuvette and movement signed and numbered.
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Diameter: 56.5 mm
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Weight: 130 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.