WOPS&reg; Technological Sense Binary Digital LED Bracelet Unisex Sports Wrist Watches Japanese High quality movement. Long Battery Life New Way to Read Time: time display as LED number lights, by adding them every time you practice your math and mind 3ATM water resistant (waterproof 30M). Please don't press button under water. Material: stainless steel case & silicone strap. Soft silicone strap and very comfortable to wear Amazing looking watch, a great gift for kids.To keep up with the fashion, this gracefully and enigmatic wrist watches would be your best choice