Swiss 18K gold cylinder watch for the Chinese market Circa 1830

Gold and enamel watch with diamond setting
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A very fine gold and enamel pocket watch with pearl setting made for the Chinese market by Boyer in Genève, Switzerland, circa 1830. The numbered case of this watch was crafted from 18 carat gold and is set with Oriental half pearls on both sides, the back has engine turned blue enamel and the French 18K gold punch. The white enamel dial has Roman hour numerals, outer minute divisions and filigree Breguet hands. The key wound movement has a cylinder escapement.
Dial and movement are signed.
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Diameter: 33 mm
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Weight: 24 g
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Signed: Boyer à Genève