First generation Seiko Automatic; bought it new in 1975. It's just like the one that was in an episode of Columbo, where Peter Falk blew away the killer's trick of putting a wimpy watch on the victim and smashing it to set a fake time of death. Columbo whipped out this Seiko and said "No, THIS is the kind of watch the victim would have worn! YOU CAN'T BREAK THIS WATCH!"