Swiss fine, small shell-shaped gold and enamel watch Circa 1830

Shell-form verge pocket watch 
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A Swiss fine, small gold and enamel shell-shaped verge pendant watch, circa 1830.
Full plate miniature movement, chain and fusee, three-arm brass balance.
White enamel dial with Arabic numerals. Case in the form of a shell, on both sides lavishly ornamented with opaque blue and white enamel scales, the top part intricately engraved.
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Dimensions: 31 x 31 mm
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Weight: 17 g
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Signed: No name