1PC New Waterproof Sports Wristwatch Digital Electronic Watch Kids XMAS Gift Stopwatch (1/100 seconds) Water Resistant to 30 metres (not for diving and do not press button under water). The whole point timekeeping And Alarm Clock function Durable and Lightweight Case the size of the watchcase 36.0mm x44.0mm(1 3/8" x1 6/8") the size of face dia: 24.0mm(1")