Seiko Prospex x Automatic ft. Polygonal Versatility Men Diver Hexagon 300m Water Resistant Watch SPB483J1 SPB483 SPB-483 SPB-483J1 This timepiece features a sophisticated design that merges high performance with a resort-inspired aesthetic. Its dial, echoing the tranquility of ocean waves, enhances its elegance. With Lumibrite-filled hands for optimal visibility and a versatile case suitable for any setting, this watch is perfect for both professional and leisure activities. Caliber Number / Movement 6R55 (automatic with manual winding capacity) Power Reserve / Accuracy Approximately 72 hours (+25 to -15 seconds per day) Crystal Sapphire crystal (anti-reflective coating on inner surface) 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 300m / 1,000ft diver Case Size Thickness: 12.5 mm Diameter: 41.3 mm Length: 48.2 mm Lug width: 20.0 mm Other Specifications Seiko Prospex x Automatic ft. Polygonal Versatility Made in Japan Magnetic resistance (4,800 A/m) Unidirectional rotating bezel Screw-down crown Screw case back 24 jewels Date display Stop second hand function (hacking mechanism) Regular timekeeping (analog display)