Seiko Prospex x Automatic ft. Land Tortoise Men Formal Tonneau 200m Water Resistant Watch SRPG13K1 SRPG13 SRPG-13 SRPG-13K1 Discover the rugged elegance of the Seiko Prospex Land Tortoise - a 200m water-resistant automatic watch with sapphire crystal and LumiBrite illumination. Powered by the 4R35 movement (41h power reserve), this 42.4mm stainless steel timepiece features a bidirectional bezel and leather polyester band, blending adventure-ready durability with refined style. Caliber Number / Movement 4R35 (automatic with manual winding capacity) Power Reserve / Accuracy Approximately 41 hours (+45 to -35 seconds per day) Crystal Sapphire crystal Luminous LumiBrite on hands and indexes Case / Band Material Stainless steel case with leather (polyester) band Water Resistance 200m / 20 bar Case Size Thickness: 11.7 mm Diameter: 42.4 mm Length: 45.2 mm Lug width: 20.0 mm Other Specifications Seiko Prospex x Automatic ft. Land Tortoise Bidirectional rotating bezel Screw-down crown Screw case back 23 jewels Date display Stop second hand function (hacking mechanism) Regular timekeeping (analog display)