1968 Heritage Diver’s Special 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. A streamlined and updated re-interpretation of Seiko’s landmark 1968 diver’s watch, this extraordinary timepiece, has been inspired by the dangerous, yet compelling, world of undersea cave diving, complete with special features designed to enhance safety for intrepid divers. The unique patterning and gradation of the dark gray dial evoke the magnificent underwater cave formations as illuminated by the diver’s light. While the hands, markers and 12 o’clock marker on the black uni-directional rotating elapsed timing bezel all offer LumiBrite coating, the glowing color is different on the minute hand and the bezel to ease critical elapsed time measurement during these hazardous dives. In addition, there is deeper knurling on both the bezel edge and the screwdown crown for ease of use. For improved legibility, the dual-curved sapphire crystal features anti-reflective coating on the inner surface. Following ISO standards for scuba diving to depths of up to 200 meters, this exceptional timepiece is powered by the 26-jewel 8L35 automatic mechanical movement, hand-assembled at the Shizukuishi watch studio to provide the enhanced torque necessary for a diver’s watch, along with manual winding capability, a frequency of 28,800 vibrations per hour, and a power reserve of approximately 50 hours. Crafted of stainless steel with super-hard coating, this rugged and superbly functional watch also includes a date calendar, secure screwdown caseback, and black silicone strap. Packaged in a collectors’ box. 200m Water Resistant