This isn't my first seiko I've own several watches over 20 years and this will be my first sports 5 model.  First I noticed it was a little lighter then my older sekio automatic for a stainless stell almost felt it was a titanium one, the face was a little smaller and instead of the movement of the second hand is smooth. I liked the clear crystal back to see the gears. My only complaint was the second hand continues to move as your adjusting the time.