Prospex Automatic Diver. Designed for those who treat life as the ultimate adventure, the Seiko Prospex line meets every challenge with technological excellence and winning design. Inspired by Seiko’s most iconic diving styles, this distinctive diver’s watch features a 3-D pressed patterned black dial with red accented second hand. For reliable timing in rough waters, the 23-jewel automatic movement beats at a frequency of 21,600 vibrations per hour, with a power reserve of approximately 41 hours, and can be wound manually or automatically. With a date calendar and LumiBrite hands and markers, the dial is framed by a black uni-directional rotating elapsed timing bezel. This high-intensity timepiece, in stainless steel, with secure screwdown crown and caseback, and tri-fold push button release clasp with secure lock and extender, follows ISO standards for scuba diving. 200m Water Resistant