English gold later pair cased duplex pocket watch Circa 1805

Gold pair cased duplex by Thomas Earnshaw
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An English 18 carat gold later pair cased keywound duplex pocket watch, circa 1805. Full plate gilt finished duplex movement, chain fusée, metal dust cover. Later cream enamel dial with Roman numerals, subsidiary seconds and gilt spade hands. Polished inner and outer cases, inner and outer cases stamped MRM for Martin Matthews, movement numbered.
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Diameter: 58 mm
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Signed: Thomas Earnshaw London