Diethelm Keller Sieber Hegner (DKSH) (formerly SiberHegner) is a Zurich-based marketing and distribution company, recently the owner of Maurice Lacroix, formerly owner of Glycine, and a minority shareholder in Bovet 1822. DKSH also served as the Asian distributor of Breitling, Corum, Ulysse Nardin, and Harry Winston as of 2013 and Bedat and Junghans in North America as of 2019.