Armitron Sport Men's 40/8347BLK Red Accented Digital Chronograph Black Resin Strap Watch Black resin case with gunmetal top ring; LCD display with day, date, time and seconds; black textured resin strap with buckle closure Functions include: chronograph, lap time, alarm, dual time, military time and backlight Quartz Movement Case Diameter: 51mm Water Resistant To 100m (330ft): In General, Suitable for Swimming and Snorkeling, but not Diving