English gilt and tortoiseshell triple cased coach watch Circa 1800

Silver with unusual illustration on dial
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Small English coach watch with three part case, circa 1800.  Three cases, protective case with cambered rim, both sides covered with tortoiseshell, pin decoration, mounted star of David on the back, gilt middle case, engraved decoration on the edge, gilt inner case, smooth, splendid verge movement with square pillars, decorated movement, original enamel dial with unusual illustration of a fly,roman numerals, pink gold hands.
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Diameter: 80 mm
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Weight: 293 g
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Signed: No Name
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Dial with fine hairlines, overall very nice condition of preservation, movement intact, cleaning recommended.