English 18 carat gold duplex pocket watch Circa 1819

Gold duplex watch
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A fine English 18 carat key wind open faced pocket watch with duplex escapement, London Hallmark for 1819. Gilt full plate duplex movement, plain 3-arm balance, diamond end stone.
White enamel, black Roman numerals, black outer minute track, subsidiary seconds at 6, gilt spade hands.
Polished round hinged case, inner cap. Movement and inner cap signed, case stamped DW for Daniel Wilmott of 7 Orchard Street, St Luke’s London
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Diameter: 53 mm
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Signed: Thomas Mofs, Ludgate Street London