English centre seconds lever for the Chinese market Circa 1840

Gold, enamel and pearl-set lever watch by Just & Son
–
A very fine and rare English 18 carat gold, enamel and pearl-set centre seconds lever pocket watch made for the Chinese market, circa 1840. Frosted gilt movement, Chinese calibre, entirely engraved, standing barrel, 8 jewels, lateral lever escapement, three-arm balance, flat balance spring, index regulator. Hinged and sprung gold cuvette. White enamel dial with Roman numerals, outer minutes and seconds track with Arabic quarter-hour numerals, original gold ovoid hands. The bezel, pendant and bow set with split pearls, hinged and sprung case back decorated with a finely painted on enamel bouquet of poppies, nasturtiums and roses on a dark blue guilloché enamel ground, white, pale green and red enamel border with chased gold scrolls, outer split-pearl border. Movement signed.
–
Diameter: 55 mm
–
Signed: Just & Son London
–
Leonard Just was specialized in making watches for the Chinese market, he worked in London between 1790 and 1825. Upon his death, the business passed to his son and carried on as Just & Son.