Fine Swiss 18k rose gold open faced lever watch Circa 1906

Rose gold keyless lever by Patek Philippe
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A fine and large Swiss 18 carat rose gold open faced keyless lever watch, circa 1906. Retailed by Gondolo & Labouriau, Relojoeiros, Rio de Janeiro. Gilt finished jewelled lever movement, bimetallic compensation balance, cam wheel regulator, gold wheels, wolf’s tooth winding. Gold cuvette. White enamel dial with Roman numerals, outer Arabic five minute divisions, gold spade hands and subsidiary seconds. Large case, engine turned hinged back. Case, cuvette, dial and movement signed.
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Diameter: 56 mm
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Signed: Patek, Philippe & Cie Genève Chronometro Gondolo