Seiko Prospex x Automatic ft. Sumo aka PADI (Special Edition) Men Diver Round 200m Water Resistant Watch SPB181J1 SPB181 SPB-181 SPB-181J1 Explore the Seiko Prospex SPB181J1, a PADI Special Edition dive watch. Featuring a 41mm stainless steel case, 200m water resistance, 6R35 automatic movement with 70 hour power reserve, and a striking black dial with PADI accents. A tribute to Seiko diving heritage and partnership with PADI for ocean conservation. Caliber Number / Movement 6R35 (automatic with manual winding capacity) Power Reserve / Accuracy Approximately 70 hours (+25 to -15 seconds per day) Crystal Sapphire crystal 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: 12.9 mm Diameter: 45.0 mm Length: 52.6 mm Lug width: 20.0 mm Other Specifications Seiko Prospex x Automatic ft. Sumo aka PADI (Special Edition) Made in Japan SPECIAL EDITION on the case back Unidirectional rotating bezel Screw-down crown Screw case back 24 jewels Date display Stop second hand function (hacking mechanism) Regular timekeeping (analog display)