Welcome to the lounge!
I own an OS Chrono and I have no complaints whatsoever.
One time after a night out partying I ended up walking home with a couple of friends when we had to walk down a couple of stairs. Ofcourse I had to trip on my own feet and I fell down over the whole stairs. The watch took quite a beating with a few scratches and dents, however, it still keeps perfect time.
Here's a picture of the stairs I fell down, courtesy of wikipedia:
You can see the stairs in the foreground.
I hope this helps you in your decision because it's a really awesome watch in my opinion.