Technomarine Men's 'Black Reef' Swiss Quartz Stainless Steel Casual Watch Date window at 4:00; 500m; screw-down crown Black dial with white and red hands and hour markers; luminous; unidirectional black ion-plated stainless steel and aluminum bezel; sapphire crystal; stainless steel case; black silicone strap Swiss-quartz Movement Case Diameter: 45mm Diver's 300m (984ft) Watch:in General, Suitable for Mixed-gas Diving