Seiko Prospex x Automatic ft. Captain Willard aka 1970 Heritage Diver Modern Re-Interpretation Men Diver Tonneau 200m Water Resistant Watch SLA051J1 SLA051 SLA-051 SLA-051J1 Discover the Seiko Prospex, a modern take on the iconic Captain Willard and the 1970 Heritage Diver. This robust men watch features 200m water resistance, a durable stainless steel case, and an anti-reflective sapphire crystal. With a 50-hour power reserve and precise automatic movement, it is ideal for diving enthusiasts. Enjoy luminous hands and indexes, plus a secure three-fold clasp. Made in Japan, it seamlessly combines style and functionality. Caliber Number / Movement 8L35 (automatic with manual winding capacity) Power Reserve / Accuracy Approximately 50 hours (+15 to -10 seconds per day) Crystal Sapphire crystal (curved, anti-reflective coating) Luminous LumiBrite on hands, indexes and bezel Case / Band Material Stainless steel case with stainless steel band (three-fold clasp with secure lock, push-button release with extender) Water Resistance 200m / 660ft diver Case Size Thickness: 13.0 mm Diameter: 44.0 mm Length: 49.3 mm Lug width: 20.0 mm Other Specifications Seiko Prospex x Automatic ft. Captain Willard aka 1970 Heritage Diver Modern Re-Interpretation Made in Japan 28,800 vibrations per hour (8 beats per second) Unidirectional rotating bezel Screw-down crown Screw case back 26 jewels Date display Stop second hand function (hacking mechanism) Regular timekeeping (analog display)