100 Meters Waterproof EXCELVAN Silicone Digital Analog Boys Mens Sport Watches with Alarm Chronograph Stopwatch Dual Time (White) High quality Japan movement and silicone rubber band Back light function,12H/24H time format Independent dual display: digital and analog 10 ATM water resistant for swimming Diving (do not press button under water) Stop watch function, Countdown, Three alarm, Power saving function, Calendar