1968 Diver's Watch Modern Re-Interpretation Limited Edition. Designed for those who treat life as the ultimate adventure, the Seiko Prospex line meets every challenge with technological excellence and style. Part of a rich legacy of innovation in high-intensity timekeeping, Prospex continues to celebrate a long history of sports watch excellence with re-creations and re-interpretations of landmark achievements. Recalling Seiko's part in the Japanese Antarctic Research Expeditions (JARE), this exceptional timepiece is available only in a limited edition of 600, with the serial number engraved on each caseback. A portion of the limited edition will be donated to contemporary researchers, including those dedicated to saving the endangered polar environment. Re-interpreting Seiko's renowned 1968 diver's watch, with updated technology, sleeker lines and fine Zaratsu polishing, this extraordinary watch is crafted of Seiko's Ever-Brilliant Steel, offering an exceptional level of corrosion resistance and a lighter, brighter finish. The caliber 8L35 26-jewel automatic movement, crafted at Seiko's Shizukuichi watch studio with the increased torque necessary for diving, beats at a frequency of 28,800 vibrations per hour, with a power reserve of approximately 50 hours, and provides manual winding capability. Following ISO standards for scuba diving to depths of up to 200 meters, this superbly functional watch includes a black dial with gold accents, date calendar, and LumiBrite markers and hands for enhanced legibility, as well as a dual-curved anti-reflective sapphire crystal, screwdown crown and caseback, black uni-directional rotating elapsed timing bezel with LumiBrite indicators, black silicone strap, and an additional black Seichu fabric diver's strap. Packaged in a Limited Edition collectors' box. 200m Water Resistant