Mid 19th Century French Sevres-style porcelain mounted mantel clock

Mid 19th Century French Sevres-style porcelain mounted mantel clock, the main panel 14cm x 11.5cm, with cellular Roman chapter ring framing landscape-painted centre, over a panel of Watteauesque lovers within jewelled borders, the two-train movement with Japy Freres exposition stamp, the canted architectural case with urn surmount, jewel-bordered roof and side panels, and further frieze panel to front, 36.5cm high