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. Protected by a scratch-resistant sapphire crystal, this handsomely tailored and superbly functional diver’s watch is equipped with an energy-efficient solar cell, powered by any light source, with no battery change required, that provides a 10-month power reserve when fully charged. Framed by a blue and red uni-directional rotating elapsed timing bezel, the highly legible navy blue dial features a date calendar and LumiBrite hands and markers. Following ISO standards for scuba diving at depths of up to 200 meters, this exceptional timepiece, crafted of stainless steel, includes a tri-fold push button release clasp with secure lock and extender and a screwdown crown and caseback. 200m Water Resistant