Nephrite, enamel, mother of pearl and diamond table clock, circa 1925, Lacloche Frères, Paris.

Nephrite, enamel, mother of pearl and diamond table clock, circa 1925, Lacloche Frères, Paris. photo courtesy Sotheby's

The carved nephrite frame, housing a black lacquer dial inlaid with mother of pearl, framed by patterned white enamel, the hands set with circular-cut diamonds, applied with Roman numerals set with rose-cut diamonds, manual winding movement, dial signed. Estimate 200,000—280,000 HKD. Lot Sold 250,000 HKD

Sotheby's. Magnificent Jewels & Jadeite, 06 Oct 10, Hong Kong www.sothebys.com