Item Type: Men Digital WatchProduct Material: Silicone, AlloyButton Battery: cr2650 x 1 520mAh (built in)Package List1 x Watch 1ULTRA THIN DIGITAL WATCH: With a casual and simple dial design and an ultra thin case, this watch is easy to wear in daily life and supports backlighting. 2MEN DIGITAL WATCH: This watch has functions such as weekdays and dates are on the same screen, 12, 24 hour switching, shock resistance, stopwatch timing, alarm setting on weekdays, touch screen function, and three sets of alarm clocks. 3WATERPROOF: The waterproof depth is 50M. In general, this watch is suitable for shallow water swimming and cold water showers, but it should be kept away from hot water and steam, and is not suitable for long term underwater activities such as diving. 4FINE WORKMANSHIP: This watch is crafted in fine and smoothly appearance, ensuring comfortable wearing experience, and is easy to wear. 5IDEAL GIFT: Simple design and fine workmanship make this watch an ideal present for your friends, or your family members, use at will