Swiss gold Art Nouveau pendant watch with dragon brooch Circa 1900

Gold cylinder watch with matching brooch by LeCoultre & Co
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An extremely rare and early Swiss 18 carat gold open faced Art Nouveau pendant watch with dragon brooch, circa 1900. Fine cylinder movement. Cuvette with later gift dedication:  Yvonne Duvivier 6 Février 1927. White enamel dial with Arabic hours and outer minute divisions, blued steel hands. Bezel engraved on both sides, ribbed band, engine turning on the back. Case numbered, movement signed. Accompanied by a corresponding very detailed gold dragon form brooch, with a pearl in mouth and a ruby eye.
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Diameter: 29 mm
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Weight: 21 g
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Signed: LeCoultre & Co