Seiko Prospex x Automatic ft. Turtle aka PADI (Special Edition) Men Diver Tonneau 200m Water Resistant Watch SRPE99K1 SRPE99 SRPE-99 SRPE-99K1 SRPA21K1 SRA21 SRPA-21 SRPA-21K1 Discover the Seiko Prospex Turtle - a professional 200m water-resistant dive watch with iconic cushion case design. Features 4R36 automatic movement (41h power reserve), hardlex crystal, LumiBrite lume, and unidirectional bezel. The 45mm stainless steel case with secure three-fold clasp delivers rugged reliability for underwater adventures. Caliber Number / Movement 4R36 (automatic with manual winding capacity) Power Reserve / Accuracy Approximately 41 hours (+45 to -35 seconds per day) Crystal Hardlex 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: 13.4 mm Diameter: 45.0 mm Length: 47.7 mm Lug width: 22.0 mm Other Specifications Seiko Prospex x Automatic ft. Turtle aka PADI (Special Edition) SPECIAL EDITION on the case back Unidirectional rotating bezel Screw-down crown Screw case back 24 jewels Day and date display Stop second hand function (hacking mechanism) Regular timekeeping (analog display)