Swiss 18k gold and enamel keywind fob watch Circa 1860

Gold cylinder watch by Patek & Cie 
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A beautiful Swiss, 18k gold and enamel keywind fob watch, circa 1860. A solid case, hinged case back with outer blue enamel and gold floral pattern, inner scene of a cherub holding and ring of flowers walking on clouds, reeded band, hinged gold cuvette. White enamel dial, black Roman numerals with outer minutes. Blued steel Breguet hands. A gilt bar movement, eight jewels, cylinder escapement, plain three-arm balance, flat hairspring, index regulator. Cuvette signed.
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Thickness: 9 mm
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Diameter: 32 mm
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Signed: Patek & Cie  Genève