English gold watch made for the Chinese market Circa 1813

Gold, enamel and pearl set pocket watch
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A charming English 18 carat gold, painted on enamel and pearl set pocket watch, circa 1813. Made for the Chinese market, the case with London hallmarks for 1813-1814.
An Empire case with fixed cuvette, flat reeded band, split pearl set bezels, pendant and bow. The spring loaded back opened by a push piece in the pendant and painted on enamel with a fine bouquet and foliage against a translucent red enamel background over wavy line engine turning. The scalloped border is decorated in champlevé enamel.
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White enamel dial with radial Roman numerals, outer minute track, large subsidiary seconds and gold spade hands. Hinged, full plate, gilt movement, going barrel, ringed cylindrical pillars, cylinder escapement with steel escape wheel, brass four arm balance, flat balance spring with Joseph Bosley patented regulator, gilded cock pierced and engraved with scrolling foliage. Gilded dust cap with finely engraved foliate border. Movement signed by the retailer Just and Son.
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Diameter: 60 mm
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Signed: Barraud’s  London
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Barrauds: The first watchmaker of the family was Francis-Gabriel (1727-1795). His sons, Paul Philippe (1752-1820) and John (dates unknown), were working with their father by 1780. In 1796, he entered into a partnership with William Howells and George Jamison to make chronometers based on Mudge’s original design. Howells, who had been Mudge’s junior worker, brought with him important technical knowledge. Alongside Barraud’s production of chronometers, a range of other clocks and watches were produced, and a major business was the exportation of plain and musical clocks to China and India. This was continued by their successors and eventually led to the establishment of a branch in Calcutta. In 1838, the Chronometer maker John Richard Lund was taken into partnership, and with the death of the last horological Barraud, Hilton Paul, in 1880, the business reverted entirely to the Lund family.