...that you would want and happily wear for the rest of your days if you had to give up all your other watches, and could only have the one (money no object)?

I know for me, the answer is no, I can't think of one, because there are too many wonderful watches out there (or even in my current collection) that I wouldn't want to limit myself to one, no matter how incredible it was. I like variety too much. I suspect that will be true for most people on IWL, but I wondered...

So, what say you? Is there one, and if so, what is it?