ILAME 10ATM Water Resistant Digital Wrist Watch for Swimming and Diving with Multiple Functions of Stopwatch Ride, Alarm, Calendar Backlight, blue navy

-Waterproof level is 10 ATM, this watch can work enormously, even if it is located at 100 meters (330 feet) underwater. Excellent waterproof makes it suitable for wearing in water sports, including diving, snorkeling, swimming, surfing, boating, etc.It is also suitable for wearing during hiking, jogging, cycling or other sports activities. -The built-in stopwatch function can meet the timing needs of coaches or referees for multiple participants in sporting events. -Supports various useful functions such as: alarm clock, time signal, calendar and backlight. -Supports 12 or 24 hour display format, which can meet different people's time reading habits. -The battery of the watch is replaceable. If you notice that the watch is not working or the text on the display is not clear, replace the battery of the watch in time.