I've had my Seiko Kinetic Divers watch for almost a year now. I am very happy with my purchase. This is a rugged, yet elegant watch. The crystal seems to be extremely scratch resistant, as I don't have a single scratch on it (at least not yet). I swim with it regularly, and though a heavy watch (which I like), it does not get in my way or bother my wrist. Once at a dinner on a dive trip, someone observed that my watch and the dive master's were identical. I said, "not quite, mine's a Seiko, and his is a Rolex." As handsome as a Rolex, but a lot less in price. The kinetic feature has worked flawlessly, and my watch has kept extremely accurate time. Haven't tested in it a while, but when I first got it I compared it to the U.S. atomic clock online, and it stayed within a second per day.