Prospex Solar Diver’s Watch. Designed for those who treat life as the ultimate adventure, Seiko Prospex keeps moving forward, meeting every challenge with technological excellence and winning design. Recalling one of Seiko’s most iconic diving styles, this exceptional watch is equipped with a mid-size stainless steel case highlighted by a green uni-directional rotating elapsed timing bezel and includes a secure screwdown caseback and crown. Providing reliable timing in the most demanding conditions, the energy efficient solar movement has a power reserve of approximately 6 months once fully charged, with no regular battery change required. This high intensity timepiece features a subtly patterned white dial with LumiBrite hands and markers paired with a light green silicone strap and follows ISO standards for scuba diving at depths of up to 200 meters. 200m Water Resistant