The mechanism of this watch is powered by battery power. Watches marked with water tightness 30M/3ATM are designed for incidental contact with water (car wash, rain). Currently the most widespread type of watch glass. It is very hard and has a high silicon content making it highly resistant to scratches and impacts. However, it does not mean that it is completely scratch resistant. The silver Dial really sets the look on this watch alongside its Stainless Steel Mesh Bracelet.