Orient Star x Automatic ft. Scuba Diving Men Diver Round 200m Water Resistant Watch RE-AU0301B Discover the Orient Star Sports Diver RE-AU0301B, an ISO-compliant 200m automatic dive watch powered by the in-house Caliber F6N47 with a 50-hour power reserve and 22 jewels. Housed in a 43.6mm stainless steel case with a flat sapphire crystal and AR coating, it features a unidirectional rotating bezel, screw-down crown, luminous hands and markers, and a power reserve indicator. Caliber Number / Movement F6N47 (automatic with manual winding capacity) Power Reserve / Accuracy Approximately 50 hours (+25 to -15 seconds per day) Crystal Sapphire crystal (anti-reflective coating) Luminous Luminous 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: 14.0 mm Diameter: 43.6 mm Length: 51.1 mm Lug width: 22.0 mm Other Specifications Orient Star x Automatic ft. Scuba Diving Made in Japan Magnetic resistance (4,800 A/m) Unidirectional rotating bezel Screw-down crown Screw case back 22 jewels Date display Power reserve indicator Stop second hand function (hacking mechanism) Regular timekeeping (analog display)