Seiko 5 Sports Field Series. Inspired by classic field design and stylish outdoor gear, this impressive watch offers authentic lines pulled from the Seiko archives with both durability and all-day performance. Framed by a black metallic bi-directional compass bezel, perfect for outdoor activities and streamlined for every day wear, the green dial features a 24-hour scale to track time, a day/date calendar, and LumiBrite hands and markers, including all 12 Arabic numerals. Powered by automatic technology that you control with every motion, the 24-jewel movement beats at a frequency of 21,600 vibrations per hour, with a power reserve of approximately 41 hours and manual winding capability. Crafted of stainless steel with a screw down see-through case back for a view of classic timekeeping in action and paired with a double-pull deep green nylon strap, made of a Cordura material, the dynamic creation is 10 bar.