Gold/enamel open faced cylinder pendant watch Circa 1850

Open faced cylinder watch by Patek & Cie
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A Swiss gold and enamel open faced keywound cylinder pendant watch, circa 1850. Frosted gilt finished lever movement, plain three armed balance. Gold cuvette, white enamel dial with Roman numerals and blued steel hands. Decorative chased and engraved case, the back cover with a finely painted multi coloured enamel scene depicting a young lady resting with her pet dog, translucent blue enamel decorative border. Cuvette signed and numbered, case numbered.
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Diameter: 32 mm
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Signed: Patek & Cie Genève