Seiko Recraft Series. This automatic watch is powered by the movement of the wearer’s wrist. Energy efficient movement with a power reserve of approximately 41 hours. The timepiece has a stainless steel case and bracelet. Features a green dial, day/date calendar and a screw down see-through case back. 50 meters water resistant. Features Automatic Self-winding Screwdown see-through caseback Day/Date calendar Gold highlights 21,600 vibrations per hour 21 jewels Specifications Collection: Recraft Gender: Men's Movement: Automatic Band: Stainless Steel Dial Color: Green Caliber: 7S26 Case Diameter: 43.50mm Case Thickness: 11.37mm Case Material: Stainless steel case Crystal: Hardlex crystal Strap: Stainless steel bracelet Water Resistance: 5 bar, 50 meters (165 feet)