Seiko Prospex x Automatic ft. 1968 Heritage Modern Re-Interpretation aka Marinemaster GMT Men Diver Round 300m Water Resistant Watch SPB519J1 SPB519 SPB-519 SPB-519J1 Discover the SPB519J1 - a premium diver GMT watch inspired by marine sports, featuring a striking blue ceramic bezel and silvery white dial. Powered by caliber 6R54, it displays dual time zone and boasts 300m water resistance. The innovative 6-step adjustable clasp ensures comfort for diving and daily wear. A perfect blend of style and functionality. Caliber Number / Movement 6R54 (automatic with manual winding capacity) Power Reserve / Accuracy Approximately 72 hours (+25 to -15 seconds per day) Crystal Sapphire crystal (anti-reflective coating) Luminous LumiBrite on hands, indexes and bezel Case / Band Material Stainless steel (super hard coating) case, ceramic bezel insert with stainless steel band (three-fold clasp with secure lock, push-button release with slide extender) Water Resistance 300m / 1,000ft diver Case Size Thickness: 13.3 mm Diameter: 42.0 mm Length: 48.6 mm Lug width: 20.0 mm Other Specifications Seiko Prospex x Automatic ft. 1968 Heritage Modern Re-Interpretation aka Marinemaster GMT Made in Japan Magnetic resistance (4,800 A/m) Unidirectional rotating bezel Screw-down crown Screw case back 24 jewels Date and 24-hour (GMT dual time) display Stop second hand function (hacking mechanism) Regular timekeeping (analog display)