Swiss rare and very fine petal form fob watch Circa 1845

Gold enamel diamond set pocket watch by Stauffer
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A rare, very fine, Swiss diamond set gold enamel petal form fob watch, circa 1845.
Gold enamel, engraved, engine turned case with partly translucent dark green enamelled. Signed enamel dial with radial Roman numerals and blued spade hands. Bridge movement, frosted, gilt, keywind, with three-arm brass balance.
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Dimensions: 31 x 41 mm
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Weight: 87 g
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Signed: Stauffer à Genève