Swiss centre seconds watch for Chinese market Circa 1815 

Gold and enamel centre seconds watch
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A Swiss yellow gold and enamel open faced centre seconds watch made for the Chinese market, circa 1815, gilt Chinese duplex movement finely chased and engraved with foliate decoration, diamond endstone, steel balance, gilt cuvette.
White enamel dial, Roman numerals, outer minute ring, gold pear shaped hands, case bezels with polychrome champlevéenamel decoration, back with translucent blue enamel over engine turning and centred with polychome enamel painted bouquet of flowers, movement signed and numbered.
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Diameter: 57.5 mm
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Signed: Ilbery London