Swiss rose gold lever watch Chronometro Gondolo Circa 1906

Rose gold open faced pocket watch 
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A Swiss 18 carat rose gold open faced keyless pocket watch, Chronometro Gondolo, made by Patek Philippe in Geneva, circa 1906. Retailed by Gondolo & Labouriau, Relojoeiros, Rio de Janeiro. Sold on May 28th, 1907. The movement with a lever escapement. White enamel dial with Roman hours, outer minute divisions, outermost Arabic five minute numerals, subsidiary seconds at 6 o’clock and spade hands. A plain case. Case, cuvette, dial and movement signed, case and movement numbered. Comes with an Extract from the Archives confirming the production of this watch in 1906.
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Diameter: 48.5 mm
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Signed: Patek, Philippe & Cie Genève
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Watches made by Patek Philippe for the Brazilian firm Gondolo & Labouriau in Rio de Janeiro are prized as some of the best examples of high quality watches from the turn of the last century. ‘Chronometro Gondolo’ watches were made especially for the Brazilian retailers who were important in the market from the 1870s.
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From 1902, Patek Philippe produced the high quality caliber called ‘Chronometro Gondolo’ exclusively for Gondolo & Labouriau. These watches are characterized by movements bearing cam wheel regulators and 9 carat gold gear train wheels. For nearly 30 years of the two firms’ partnership, Gondolo & Labouriau retailed close to a third of the entire production of Patek Philippe watches.