This is SEIKO ACUTUS. Genuine glass windshield replaced. The windshield has been replaced with a new original so it is very clean. 21 stones, automatic winding, made in Japan, made in 1977. This is my personal opinion, but the actual product is better than the photo.
Watch had very nice dial, keep very good time, problems was can not hand wind, also don’t have date/day quick set, so when you have more than one watch, you going set the date/day again unless you are not looking at it.