Swiss gold, enamel and diamond-set leaf-form watch Circa 1850

Gold pendant watch in the shape of a vine leaf by Joseph Tapponier
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An extremely rare Swiss 18 carat gold, enamel and diamond-set hunting cased form pendant watch, circa 1850. Cylinder escapement. Screwed white enamel dial with Roman hours and outer minute divisions, steel Breguet hands. Case in the shape of a vine leaf, high relief on both sides, multi-coloured enamel, the front set with rose-cut diamonds. Cuvette signed and numbered.
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Dimensions: 44 x 32 mm
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Weight: 26 g
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Signed: Jph. Tapponier Genève
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Form watches in leaf-form are extremely rare.
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Joseph Tapponier is mentioned as a manufacturer of jewellery watches in “Jewelry Watches from 1790-1850” by Patrizzi/Sturm