Seiko 5 Automatic Sports 55th Anniversary Limited Edition Watch SRPK17. Seiko 5 Sports 55th Anniversary Limited Edition. Limited Edition of 15,555. Production serial number engraved on caseback. Recreation of the 1968 Seiko 5 Sports “61-5D” replicating the size and form of the original with updated specifications. Automatic with manual winding capability. 21,600 vibrations per hour. Power reserve: approximately 41 hours. Black uni-directional rotating bezel. Black dial with the original Seiko 5 logo and the word “SPORTS” at 6 o’clock. Luminous hands and markers. Screwdown caseback with vintage design. Case diameter: 39.5mm. Stainless steel case and bracelet based on the original design. Tri-fold push button release clasp. Water resistant to 10 bar, 100 meters (330 feet). Packaged in a Limited Edition collectors’ box. Our Merchandises are NEW and 100% AUTHENTIC.