Features: 3 sets of Alarm Clock to meet your different demand. Simple and clear dial plate with large digital display. The Compass function is a bonus for outdoor enthusiasts. EL backlight lets you know the time clearly even in darkness. Made of good quality materials, very durable and comfortable to wear. 5Atm water resistant.(please don't press any buttons when underwater) Practical World Time function, time of the 48 cities in the world can be set. Including functions of Chronograph, Countdown Timer, Calendar, Week, EL Back Light, 3 sets Alarm, Hourly Chime, 12/24 Hour Format, World Time, Dst, Compass, etc.