English 18k gold, enamel and diamond set cylinder Circa 1822

Decorated open faced pocket watch by G. Wirgman
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An English 18 carat gold, enamel and diamond set open faced keywound cylinder pocket watch, Hallmarked London 1822. Gilt finished engraved full plate cylinder movement, chain fusée, pierced and engraved balance cock, diamond set endstone, three armed balance, silvered regulator disc, rounded pilasters. White enamel dial with Roman numerals and diamond set hands. Case with red and blue guilloché enamel to the back, red central zone with floral motif, surrounded by white enamel and gilt border, outer blue enamel and gilt swag design, bezel and rim with blue and white enamel design, bezel paste set, hinged back. Movement signed, case stamped with London date letter for 1822.
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Diameter: 42.5 mm

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Signed: G. Wirgman London