Stuhrling Original Men's 718.03 Aquadiver Manta Ray Swiss Quartz Date Professional Diver Blue Dial Watch The Manta Ray edition of the Stuhrling Aquadiver series upholds the dive watch standard with a brushed stainless steel case with unidirectional ratcheting bezel and an eye-catching dark blue dial. Swiss quartz movement with analog display Protective Krysterna crystal dial window and decorated case back Features include a hydraulically stamped dial with applied markers and date window at three o'clock. Water resistant to 660 feet (200 M): suitable for recreational scuba diving