Designed to look like an automotive wheel, the Equipe Hub watch has a five-lug pattern in the center of the dial and features hinged lugs for improved comfort on your wrist. The case is made from heat treated forged 316L surgical grade stainless steel and it the Citizen quartz movement is sealed inside via a screwed-in steel case back. A highly scratch resistant curved mineral crystal protects the dial. Luminous hands allow you to read the time in the dark. Case : 316L brushed finish stainless steel, 42mm diameter. Band : Black silicone strap with a tire tread pattern and a buckle closure. Water Resistant : 330 ft. Warranty : 2 Years.