Late 18th/early 19th century, Guangzhou Workshops, possibly Imperial Tribute The case surmounted by a bud-finial on an shaped caddy set with mounts of flying 'Vermilion Birds' zhuque and ten oval medallions, framed by a pierced balustrade and set to each corner with a flaming urn finial, the main body applied with a pair of urn mounts between pierced scroll corner supports, on a plinth base with bracket feet, the rear set with a cast door frame enclosing a pierced silk-backed sound fret depicting flowers and trellises in silhouette, the 3.75 inch enamel Roman dial with outer minute band and brass hands, framed by a bezel set with red, green and transparent brilliants, the twin fusée movement wound from the rear with knife-edge verge escapement striking on a bell, the backplate decorated by engraved bands to the edge, the case further set with a separate spring-driven movement in the base, wound from the side and activating the rotating stone-set medallion to the front on command via a slider set to the side. 36cm (14 1/8in) high.