Swiss pink gold and enamel open faced watch Circa 1830

Pink gold and enamel open faced watch
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A Swiss pink gold and enamel open-faced watch, circa 1830, gilt full plate movement with cylindrical pillars, fusee and chain, verge escapement, three-arm balance, pierced and engraved balance bridge.
White enamel dial, Arabic numerals, pink gold case, the front bezel with black champlevé enamel foliate and floral decoration, matching enamel decoration to the case back and bow, case numbered, movement signed and numbered.
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Diameter: 43 mm
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Signed: Archinard & Cie Genève