SKMEI Touch Screen Digital LED Waterproof Boys Girls Sport Casual Wrist Watches Black Japanese High quality movement. Long Battery Life. 3ATM water resistant (waterproof 30M). Please don't press button under water. Material: high-quality titanium case ( not fade & not allergic ). Case cover: thick hardened mirror glass, German glass high hardness , wear resistance , compressive strength, heat resistance with imported glue, waterproof effects special good. Case back: stainless steel, stainless steel buckle. Strap: German BASF original silicone strap , plus feel the spray oil, soft and comfortable, anti-static dust. Case size: 43 * 43 mm. thickness : 9mm. ADVANCED TECHNOLOGY - Touch screen wrist watches are the best choice! New fashion, new outlook.