1965 Diver’s Watch Re-interpretation U.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. Updated with today’s technology and materials, and a sleeker and thinner profile, this rugged timepiece reimagines Seiko’s 1965 first diver’s watch, an automatic timepiece with a then exceptional water resistance of 150 meters. With a power reserve of approximately 70 hours, the 24-jewel automatic movement beats at a frequency of 21,600 vibrations per hour, and provides manual winding capability. Crafted of stainless steel with super-hard coating, this superbly functional timepiece features a curved sapphire crystal with anti-reflective coating on the inner surface, and a screwdown crown and caseback, and follows ISO standards for scuba diving to depths of up to 200 meters. 200m Water Resistant.