1965 Heritage Diver's Black Series 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. Updated with today's technology and materials, and a sleeker and thinner profile, this extraordinary Limited Edition, available only in a controlled production run of 600 with the serial number engraved on each caseback, reimagines Seiko's 1965 diver's watch, the first made in Japan, with a water resistance, legibility and durability that made it standard equipment on the Japanese Antarctic Research Expedition (JARE), and propelled Seiko into the forefront of dive watch design. Part of the Black Series, expressing the view seen through a night vision scope, this dramatic design features hands and markers with Seiko's brighter and longer lasting "Green LumiBrite Pro" suitable for professional usage and providing maximum visibility with the color most recognizable in the dark. The caliber 8L35 26-jewel automatic movement, hand-assembled at Seiko's Shizukuishi watch studio with the increased torque necessary for smooth operation of the enlarged diver's watch hands, beats at a frequency of 28,800 vibrations per hour, with a power reserve of approximately 50 hours, and provides manual winding capability. Blending textures and patterns to symbolize the virtuosity of Seiko diver's watches in all environments, this exceptional watch, in stainless steel with black hard coating, follows ISO standards for scuba diving at depths of up to 200 meters and includes a textured black dial, date calendar, dual curved sapphire crystal with anti-reflective coating on the inner surface, screwdown crown and caseback, black uni-directional rotating elapsed timing bezel and black high-intensity "Seichu" fabric diver's strap. Packaged in a Limited Edition collectors' box. 200m Water Resistant