Swiss gold musical watch for the Chinese market Circa 1820

Gold, enamel, and pearl-set quarter repeater attributed to Piguet & Meylan
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A fine and rare Swiss 18-carat gold, enamel, and pearl-set quarter repeating center-seconds musical cylinder pocket watch, playing music on the hour or at will, made for the Chinese market, circa 1820. Matte gilt movement, standing barrels for the going and musical trains, cylinder escapement, three armed balance with polished steel endplate, blued steel flat balance spring, index regulator, repeating on gongs activated by depressing the pendant, sur plateau musical movement with 23 tuned blued steel teeth playing on both sides of the pinned disc, silence lever protruding from the edge of the cuvette, bolt to activate the music on the band. Hinged gilt cuvette with apertures for the hand-setting, going, and musical trains. White enamel dial with bold Roman numerals, outer minute divisions, and original blued steel lozenge hands. The bezels, pendant, and bow decorated with split pearls, the band decorated with translucent red enamel and a continuous green champlevé enamel leaf pattern, the back cover set with a painted on enamel panel of a flower bouquet on an Imperial blue ground. Case stamped with the case maker’s mark FO for Frères Oltramare.
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Diameter: 58 mm
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Signed: No name