A stand out watch in the diving world, this Longines HydroConquest automatic men\'s watch has been designed for men looking for a high performance timepiece with timeless style. At A Glance  Fastened with a stainless steel brushed and polished bracelet 41mm stainless steel and ceramic case with a unidirectional rotating bezel and 300m water resistance Black sunray dial Applied Arabic numeral and index hour markers with Swiss Super-LumiNova Date window at 3 o\'clock Powered by a self winding mechanical movement with a 64 hour power reserve