1、LUMINOUS DESIGN: This watch uses a luminous mode to display the time clearly even at night, making it easy to check the time in the dark. 2、SUITABLE FOR: This dual display watch is especially suitable for people who like sports style, multi functional, suitable for various sports scenes and daily use. 3、WATERPROOF: This luminous watch is designed to be waterproof so you can wear it when you get wet in the rain, shower or wash your hands, and you don't have to worry about soaking it with sweat when you exercise. 4、WEARING COMFORT: The strap is made of environmentally friendly resin, good flexibility, more comfortable to wear skin friendly, the case is odorless, comfortable to wear, smooth and textured. 5、BEST GIFT: You can give this electronic watch as a gift to your friends, lover, family, kids on Christmas, Easter, birthday, Valentine's Day. 1 x Watch Item Type: Electronic watchMaterial: Stainless steel, plastic, mineral reinforced glass mirror, environmental protection resinShell Diameter: Approx. 55mm / 2.2inStrap Width: Approx. 23mm / 0.9inStrap Length: Approx. 240mm / 9.4inShell Thickness: Approx. 17mm / 0.7inBattery Type: Button cell (shipped with battery)