French 18k gold shell-shape form watch with pearls Circa 1800

Gold form pocket watch with verge escapement
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A rare shell-shape form/pendant watch with pearls, France circa 1800. An 18K gold, rare version as a hunting cased watch, intricately engraved and decorated on both sides with fine small half pearls, gilt verge movement, enamel dial in excellent condition, pink gold hands, missing tip of the minute hand, intact and in very beautiful condition.
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Diameter: 42 x 32 mm
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Weight: 21 g
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Signed:  No name
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1 pearl missing