What is the one watch that you keep coming back to, despite lacking the bells and whistles in finishing and whatnot?

I frequently find myself enjoying wearing the Tudor Oyster Prince 34 very much, despite it's humble origin. It's light, versatile, keeps great time and makes me smile a little every time I put it on.

What's the one watch that makes you wanna put it on in the morning, despite having far more expensive watches in the box?