For ages I had a Seiko dive watch that worked beautifully and cost about $120 or so back in the early 70s. Last year it stopped keeping time accurately, and when I sent it in for cleaning and repair I was told that it could be repaired but not made waterproof again (change in design, the right parts no longer available).
After looking around for a while, I replaced it with a Tissot Seastar 1000. It says it can go down to 1000 feet, but the only way it's going that deep is by itself. In fact, the first one I got clouded up with condensation after being submerged in a swimming pool last summer, and it had to be replaced. I don't know if I screwed up, but I don't think I did; in any case, they replaced it without a fuss.
I got a Timex Ironman Triathlon or whatever they call it to have an inexpensive watch to wear traveling and diving, but I've discovered that I really can't read the digital display comfortably. So I'm wearing the Tissot, after all. It's a pretty nice watch, but I would have been happy to keep the Seiko for another 30 years if it hadn't given up on me.