Swiss silver open faced watch for the Chinese market Circa 1860

Silver pocket watch with open face by Dimier
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A silver, Swiss key winding round-shaped open faced Chinese duplex escapement pocket watch with centre seconds, circa 1860. Made for the Chinese market.
Engraved Chinese-style movement with enamel inlay, Chinese duplex escapement. Enamel dial with Roman radial hours, centre seconds, outer minutes track with Arabic fifteen minutes numerals, and original hands. Silver polished, signed case.
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Diameter: 56 mm
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Signed: Dimier