Wenger Men's AquaGraph watch #79076 SCREW-DOWN CROWN (UNSCREW CROWN TO SET THE TIME AND / OR FUNCTIONS. WHEN ALL SETTINGS ARE DONE, SCREW-DOWN THE CROWN FOR PROPER WATERPROOFING) Swiss Made Stainless Steel Case and Bracelet. Black Dial. Mineral Crystal. Luminous hands and markers Water Resistant: 200 meters Case Diameter (without crown): 39mm