Swiss gold lever watch with Guillaume balance Circa 1905

Pink gold open faced lever watch by Patek Philippe
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A Swiss pink gold open faced keyless pocket watch with Guillaume balance and photocopy of the Bulletin of Marche, circa 1905. The watch features a mechanical jewelled lever movement. An enamel dial with Breguet-style radial hours, an outer minutes track with red Arabic five-minute numerals, a subsidiary dial for the seconds, and gold Louis XV-style hands. The 18k pink gold plain case includes a cuvette and a hinged back. The case, dial, and movement are all signed. The watch comes with a photocopy of the Bulletin de Marche rating certificates. Additionally, it is delivered with the Patek Philippe Extract from the Archives, which confirms the production of the present watch in 1905 and its subsequent sale on 20th October 1909.
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Diameter: 49 mm
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Signed: Patek, Philippe & Cie Genève
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The movement is in good working and excellent condition. The enamel dial is in good and intact condition. The case is in very good and crisp condition. The hinges are in good and tight condition. The signature on the inside of the case back is slightly rubbed.