Seiko Prospex x Automatic ft. King Turtle aka The Black Series aka Night Vision Men Diver Tonneau 200m Water Resistant Watch SRPK43K1 SRPK43 SRPK-43 SRPK-43K1 Discover the Seiko Prospex Black Series dive watch with innovative green LumiBrite Pro for exceptional night visibility. Features a black ceramic bezel, magnified day-date, and ISO-certified 200m water resistance. Housed in a black hard-coated stainless steel case with sapphire crystal and automatic movement. Caliber Number / Movement 4R36 (automatic with manual winding capacity) Power Reserve / Accuracy Approximately 41 hours (+45 to -35 seconds per day) Crystal Sapphire crystal with magnifier (anti-reflective coating) Luminous LumiBrite on hands, indexes and bezel Case / Band Material Stainless steel (hard coating) case, ceramic bezel insert with stainless steel band (three-fold clasp with secure lock, push-button release with extender) Water Resistance 200m / 660ft diver Case Size Thickness: 13.2 mm Diameter: 45.0 mm Length: 47.7 mm Lug width: 22.0 mm Other Specifications Seiko Prospex x Automatic ft. King Turtle aka The Black Series aka Night Vision 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)