This watch just arrived yesterday as an early Fathers Day gift from my wife and son. I own another Seiko auto watch and asked for this model as a more casual alternative for theme parks and days off. It is spot on with the time I set yesterday. I expect it'll change by a couple seconds here and there overall but seems aok so far. The build quality and materials used in its construction are durable and refined. From previous experience I know the Hardlex Crystal is near bullet-proof as far as scratch resistance.
If I had to pick one thing to improve, I would love to see the hands and markers hold there luminescence longer in the dark. Neither this nor the other model I own tend to stay bright for more than 10-15 minutes after sun exposure. It tends not to glow well at all with non-natural light exposure. I don't think it detracts much as I really don't need it at night and I will not knock a star off for it. The winding seems smooth and mostly quiet just as my other.
I love this like many other Seiko Auto watches and wish they had wider distribution in the states.

Quick update: After over 7 months of use I still love this watch. IT IS SUPER ACCURATE! You will need to occasionally wash the band with soap and warm water because it will get funky. I don't remove it, I just scrub it on the watch.