Small Swiss 18k gold and enamel open faced watch Circa 1913

Gold and enamel lever pocket watch by Patek Philippe
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A small, fine and rare Swiss 18 carat gold and enamel open faced watch, circa 1913. Gilt finished lever movement, 15 jewels, bimetallic compensation balance, wolf’s tooth winding. White enamel dial with Breguet numerals, Louis XV hands, outer gilt Arabic numerals and subsidiary seconds. Gold cuvette engraved Tir Cantonal du Centenaire, Genève, Suisse, 1814-1914. Bezel and back rim with double white enamel surround, the case back with an eccentric polychrome enamel scene depicting a view of Geneva with the lake in the foreground and Mount Salève in the background, framed by an enamel garland of pink roses and the date 1814-1914. Case, cuvette, dial and movement signed, case and movement numbered.
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Diameter: 32 mm
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Signed: Patek Philippe & Cie Genève