Technomarine Men's 'Black Reef' Swiss Quartz Casual Watch Chronograph functions with 60 second, 30 minute and 1/10 of a second subdials; date window at 6:00; 500m; set includes: blue silicone strap; unidirectional blue imp stainless steel and plastic bezel Silver dial with silver tone, blue and white hands and white and blue hour markers; luminous; screw-down crown; mineral crystal; stainless steel case; white silicone strap with blue accents Swiss-quartz Movement Case Diameter: 45mm Diver's 300m (984ft) Watch:in General, Suitable for Mixed-gas Diving