English large silver pair cased verge pocket watch Circa 1770

Pocket watch with fire gilt movement
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A pocket watch with double case made by James Chater & Son in London, England, circa 1770. The open faced double case is crafted from silver and the white enamel dial has Arabic minute- and Roman hour numerals and gold Louis XIV hands. The numbered movement is elaborately decorated with a portrait of a man and has a fire gilt verge escapement.
Movement signed.
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Diameter: 51 mm
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Weight: 107 g
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Signed: Charter & Son, London