Swiss gold and enamel Art Nouveau cylinder watch Circa 1900

Gold, enamel and diamond-set cylinder watch by Louis Audemars
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A very rare Swiss 18 carat gold, enamel and diamond-set open faced Art Nouveau cylinder pendant watch, circa 1900. Cylinder movement. White enamel dial with black Roman hours and gold minute dots, blued steel hands. Engine-turned case, translucent dark red enamel, polychrome enamel scene, diamond-set. Comes with a gold and enamel brooch. Case signed and numbered, dial and cuvette signed.
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Diameter: 26.5 mm
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Weight: 18 g
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Signed: Ls Audemars Genève