English gold, enamel and pearl set clockwatch Circa 1790

Pair cased centre seconds two train striking cylinder by Francis Perigal
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A fine and rare English 18 carat gold, enamel and pearl set pair cased centre seconds two train striking clock watch, circa 1780-1799. Full plate gilt brass cylinder two train movement, chain fusée, pierced and engraved balance cock with decorative engraved foot, round baluster pillars, metal dust cover. White enamel dial with Roman numerals, Arabic five minute divisions and centre seconds. Pierced and engraved inner case with decorative scroll and foliate motif, lever in the band for strike/no strike, outer case with polychrome enamel landscape with lady playing castanets, surrounded by white enamel and gilt border, all set within a blue enamel frame, the front and back rims enhanced with translucent blue enamel border with gilt stars, further enhanced with ruby and seed pearl border finely painted oval enamel scene to the reverse depicting a young lady in the country playing her castanets, white enamel decorative border. Movement and dust cover signed and numbered.
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Diameter outer case: 53 mm
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Signed: Fra. Perigal Royal Exchange London