If you were to log in, you'd be able to get more information on your fellow community member.
Concealing the fact that you wear a Rolex or any other expensive mechanical watch is a lot easier than concealing an expensive and big Nikon F5 or even expensive and small Leica M6; just keep it under your shirt cuff. Or wear a shirt with an elastic cuff. Don't flash it in front of the chicks at the pilot's bar to impress them. As for failure, catastropic or otherwise, I worry more about a battery powered quartz watch. I've had them die while I was on vacation overseas, then you have to waste time buying another one. Or carry a spare. My mechanical watches are much more reliable. My personal experience with good mechanical watches (Omega, Panerai) is that they drift by at most 2-3 seconds per day. Sure, they should be serviced every 5 years or so, just like a professionally used camera.