Reliable Japanese quartz analog movement with soft and pliable silicone strap with ss buckle closure with keeper Solid all alloy metal case, brass pushers and/or crown, stainless steel case back, durable mineral crystal protects watch, water resistant to 10 meters (33 feet), 2-year limited warranty! Japanese-quartz Movement Case Diameter: 42mm Water resistant to 30m (100ft): in general, withstands splashes or brief immersion in water, but not suitable for swimming or bathing