Seiko Prospex x Automatic ft. Monster aka The Black Series (Limited Edition of 7,000 Pieces) Men Diver Round Diver 200m Water Resistant Watch SRPH13K1 SRPH13 SRPH-13 SRPH-13K1 Discover the Seiko Prospex Black Series Monster SRPH13K1. This 42.4mm automatic dive watch features a fully black-coated case, beige Lumibrite markers, orange minute hand, and 200m water resistance. Powered by the 4R36 movement with day-date function. A bold, modern take on an iconic design. Caliber Number / Movement 4R36 (automatic with manual winding capacity) Power Reserve / Accuracy Approximately 41 hours (+45 to -35 seconds per day) Crystal Hardlex crystal with magnifier Luminous LumiBrite on hands, indexes and bezel Case / Band Material Stainless steel (hard coating) case with silicone band Water Resistance 200m / 660ft diver Case Size Thickness: 13.4 mm Diameter: 42.4 mm Length: 49.4 mm Lug width: 20.0 mm Other Specifications Seiko Prospex x Automatic ft. Monster aka The Black Series (Limited Edition of 7,000 Pieces) LIMITED EDITION on the case back Serial number engraved 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)