Swiss centre seconds duplex for the Chinese market Circa 1870

Gold hunting cased duplex watch
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A rare Swiss silver, enamel and pearl-set open faced duplex pocket watch made for the Chinese market, circa 1870.
Glazed bridge movement, key-winding, polished steel, going barrel, Chinese duplex escapement, steel balance with three blued weights.
White enamel dial with radial Roman numerals, centre seconds and blued spade hands. The bezels on both sides with applied half pearls, reeded band, on the back a fine composition of polychrome enamel summer flowers at a lakefront, a butterfly in the foreground, a pagoda in the background, half pearl-set pendant, the front lid with inner Chinese signature. Movement signed.
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Diameter: 56 mm
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Weight: 122 g
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Signed: Bovet à Fleurier