Seiko Prospex x Automatic ft. Sumo aka Asia Exclusive Blue Coral (Limited Edition of 1,000 Pieces) Men Diver Round 200m Water Resistant Watch SPB344J1 SPB344 SPB-344 SPB-344J1 Discover the ultra-rare Seiko Prospex Sumo Blue Coral SPB344J1 - an Asia-exclusive 200m diver limited to just 1,000 pieces. Featuring a vibrant blue dial inspired by coral reefs, robust 6R35 movement (70h power reserve), and sapphire crystal, this 45mm stainless steel watch includes both metal and silicone straps. With lumibrite markers, screw-down crown, and engraved serial number, it is a true collector dive watch blending Japanese precision with tropical allure. 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 Asia Exclusive Blue Coral (Limited Edition of 1,000 Pieces) Made in Japan Additional silicone band inclusive LIMITED EDITION on the case back Serial number engraved 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)