10 ATM Water Resistant Digital Wristwatch for Swimming and Diving with Multiple Functions of Lap Stopwatch, Alarm Clock, Calendar and Backlight

About this item -The waterproof level is 10ATM, this watch can normally work even if it is 100 meters (330ft) underwater. The superior waterproof performance makes it suitable to wear in water sports, including diving, snorkeling, swimming, surfing, boating etc.It is also suitable to wear it in hiking, jogging, cycling or other sports activities. -The built-in lap stopwatch function which can meet the timing needs of coaches or referees for multiple participants in sports events. -Support multiple useful functions such as: alarm clock, hourly chime, calendar and back light. -Support 12 or 24 hour format display which can meet the time reading habits of different people. -The watch battery is replaceable. If you find that the watch is not working or the text on the display is not clear, please replace the watch battery in time.