Swiss gold enamel bracelet concealed watch Circa 1830

Lady’s gold and enamel bracelet concealed watch
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A fine Swiss lady’s yellow gold and enamel bracelet with key winding concealed watch, circa 1830, thin full plate gilt brass verge movement, pierced and engraved balance, cock à la francaise, fusée-and-chain transmission system.
White enamel dial, Roman numerals.
Yellow gold bracelet volute-opened with black and white champlevé enamel dans le style de Genève, yellow gold locket with enamel painting bouquet of flowers and bezel black and white champlevé enamel, movement signed.
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Diameter: 30 mm   Dimensions: 56 x 48 mm bracelet circumference 170 mm
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Signed: Moricand and Desgrange