when I was teaching scuba years ago I always coveted a Rolex.One of the other instructors a Marine major had one. years later I got one and wore it daily . kept fair time. I was rough on watches and had the crystal replaced a couple of times the sales lady asked me if it was a gift as I did not deserve a Rolex. I think she meant it. found a local watchmaker that kept it tuned up and repaired. I don't wear a watch anymore the phone is more accurate