Nixon Men's '48-20 Chrono Leather' Quartz Stainless Steel and Blue Leather Casual Watch (Model: A3632219-00) 6 hand chronograph concave dial ring, bold printed indices, a printed seconds track, and molded hands 48mm, 200meter/20 ATM Japanese-quartz Movement Case Diameter: 48mm Water Resistant 200m (660ft):in General, Suitable for Professional Marine Activity and Serious Surface Water Sports, but not Diving