Seiko watch. Prospex U.S. Special Edition. 45mm case. Intricately patterned turqoise dial inspired by turtle shell. Black unidirectional rotatable bezel with ceramic insert. Automatic movement. Day. Date. Includes green silicone strap. Caliber 4R36. Approximately 41 hour power reserve. 24 jewels. Celebrates Seiko's ocean exploration and conservation efforts.