Game Time Men's 'Starter'  Metal and Nylon Quartz Analog Watch, Color:Black (Model: NBA-STA-OKC) Durable and Solid Allow Metal Case, Solid Stainless Steel Caseback and Crown, a Strong and Slim Nylon Strap with Solid Stainless-Steel Buckle Closure Durable mineral crystal protects watch from scratches, water resistance of 99 Feet/30 Meters/3 ATM, and all with a Limited Lifetime Warranty! Japanese-quartz Movement Case Diameter: 33mm Water resistant to 30m (100ft): in general, withstands splashes or brief immersion in water, but not suitable for swimming or bathing