Read more on our blog “SEIKO OCEAN CONSERVATION” Gender Mens MFG Reference # SRPH55 Case Size 45 Movement Automatic with Manual Winding Mechanism Case Materials Stainless Steel Case Description Unidirectional Rotating Bezel with Ceramic Insert Crystal Anti-Reflective Sapphire Crystal Complications Date, Day Power Reserve Water-Resistance Dial Colors Gradient Turquoise, Sea Turtle Shell Motif Dial Features Day & Date Indicator, Lumibrite Hands and Hour Markers Strap Stainless Steel Original box Solid case back