10 ATM Water Resistant Digital Watch with Multiple Functions for Swimming Lap Stop Alarm Calendar and Backlight Diving, Watch, Clock, (Black)

-Water resistance level is 10ATM, this watch can function normally under 100 meters (330 feet) underwater. Good waterproof performance makes it suitable for wearing in water sports such as diving, snorkeling, swimming, surfing, and boating. It can also be worn during other sports activities such as hiking, jogging, and cycling. -This watch has a built-in lap stopwatch feature that can accommodate the timing needs of coaches and referees for multiple participants at sporting events. -Supports useful functions such as alarm clock, time signal, calendar, backlight, etc. -Supports 12-hour or 24-hour display, can accommodate different people's time reading habits. -The watch battery is replaceable. If the clock does not work or the displayed characters are difficult to read, please replace the clock battery in a timely manner. Main features: -Waterproof level up to 10ATM, works well underwater at depths of 100 meters (330 feet). - Accurate display of month, day, hour, minute, second and day of the week. - Lap stopwatch function is integrated into this watch. -Supports useful functions such as alarm clock, time signal, calendar, backlight, etc. -Can switch between 12-hour system and 24-hour system. -Uses Japanese quartz movement. -Using a comfortable and soft TPU watch strap. -Resistant to impact. parameter: Time accuracy: ±30 seconds per month Maximum underwater depth: 100m (330ft) Clock shape: Rectangle Display type: Digital Watch Movement Type: Japanese Quartz Battery code: CR2016 Usage battery life: 1.5~2 years Dial window material: high transparent resin Case material: ABS Dial color: Gray Case size: 36x32.6mm (1.4x1.3 inch) Case thickness: 9mm/0.35inch Watch strap material: TPU Watch strap color: dark blue Closure type: pin buckle Watch Strap Width: 21mm/0.83inch Maximum wrist circumference: 215mm/8.46inch Minimum wrist circumference: 135mm/5.31inch Product weight: 38g/0.08lb Package weight: 132g/0.29lb Note: The watch battery is replaceable. If the clock does not work or the displayed characters are difficult to read, please replace the clock battery in a timely manner.