Photo taken on April 28, 2011, shows a round watch of French Empress Marie-Louise exhibited in Hong Kong, south China. The watch manufactured in 1813 is customized with Marie-Louise's monogram in the center, made from blue enamel and edged with diamonds. Paris-based jeweler Chaumet Thursday held a media preview of its "200 Years of Timepiece Creation" exhibition in Hong Hong to celebrate its 200th anniversary of making jewelry and watches. [Xinhua/Song Zhenping]