I used to be a Fossil watch person, I had a waterproof diving watch for 10+ years that I would send back to get new batteries whenever it died.  But in the past 2-3 years their service has dropped and my watch kept having issues.  So I bought this to replace that watch.  It's just what I needed.  It does NOT have the locking dial so don't be freaked out when it doesnt lock.  it DOES stay waterproof (via o-rings, similar to my Fossil watch).  I had 2 links taken out so it would fit my wrist but otherwise it's perfect for me.  I always wear a watch (sleeping/showers/swimming, basically all day every day) and I love wearing this watch.  I can't say anything about diving with it, but swimming with it hasn't caused any problems and its still working!
Update Sept 2014: Watch is still working, no problems.  I've had to replace the pin that holds the clasp together because I caught it on my backpack and ripped it out.  But I took it to a jewelry repair shop and they were able to replace it without any problems.