Swiss gold and enamel Art Nouveau brooch watch Circa 1900

Gold cylinder pendant watch
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An elegant Swiss Art Nouveau 18K gold, enamel and rose-cut diamond-set lady’s keyless pendant watch with a detached gold, pearl and ruby-set flower brooch, circa 1900. The bezel and band are overlaid with tonal red translucent enamel, the back cover is decorated with flowers in relief, the petals are overlaid with opalescent blue enamel, the stamens are set with rose-cut diamonds, translucent tonal red enamel ground to match the bezel and band. Hinged gold cuvette, white enamel dial with Arabic numerals in gold paillon circles, outer gold dot minute divisions and gilt Louis hands. Matte gilt movement, eight jewels, cylinder escapement, three-arm balance, flat balance spring, index regulator. Movement signed.
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Diameter: 24.5 mm
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Signed: LeCoultre & Cie  Genève