About 20 years ago my Grandson went to Phuket for a holiday while he was the he purchased an Automatic imitation Rolex Submariner, I have worn this watch for a period just about every day since I got it, the SS case has not deteriorated in any way, the SS bracelet is still perfect and the watch itself that hacks and has manual wind loses about one minute a day. I have never opened the watch, hard to believe I know.