English gilt metal watch for the Chinese market Circa 1760

Gilt metal verge clock watch
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A very rare English, gilt metal, hard stone and paste set striking clock watch, circa 1760. Made for the Chinese market. The bezel set with faceted red pastes, and bands with foliate pierced and engraved sound frets, and the back set with a domed polished agate panel within a faceted red paste border. Fixed gilt cuvette with sound holes and apertures for winding. White enamel dial with radial Roman numerals, outer dot minute divisions, Arabic five-minute numerals and gilt poire hands. Hinged gilt full plate, baluster pillars, fusee and chain for the going train, verge escapement, flat balance spring, foliate pierced and engraved cLock, silver regulation dial, striking train with going barrel, countwheel and bell in the fixed cuvette. Movement signed.
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Diameter: 55 mm
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Signed: Colston  London