These are higher-end  Seiko 5's on the elegant side, as Seiko 5 Sports are on the rugged side.  These are definitely sought after for their dependability and simple beauty.Its counterpart is the Seiko DX..The watch is a  vintage authentic, 100% original. It is keeping time while listing, and has not been tested beyond ,either for accuracy and water-resistance. Light Rain or washing will not harm it. Wearing it in the shower can, as steam will get thru, and hard to open back.