Swiss small diamond-set gold and enamel watch Circa 1860

Gold, enamel and diamond-set lever watch by Patek Philippe & Co
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A small Swiss 18K gold, enamel and diamond-set hunting cased lever pendant watch made for Tiffany & Co, circa 1860.
Engine-turned case with translucent cobalt blue enamel, the front is decorated with a diamond-set garter. Signed white enamel dial with Roman hours and outer minute divisions, decorative hands.
Bridge movement, lever escapement, gold screw compensation balance.
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Diameter: 37 mm
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Weight: 47 g
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Signed: Patek Philippe Genève
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This piece is one of the very first watches by Patek Philippe with crown winding.