Armitron Sport Men's 40/8357BLK Digital Chronograph Black Resin Strap Watch Oversized square resin case; top ring with white printed graphics; textured Black silicone strap with buckle closure Functions include: time, seconds, day/date, chronograph, lap time, dual time, alarm, military time, countdown timer and backlight with 3 second delay Quartz Movement Case Diameter: 47mm Water Resistant To 330 Feet