If you had to put sporty elegance  on a wrist, it would probably look a lot like Sebastian Stan in a Santos de Cartier. Square case, exposed screws, clean Roman numerals.A watch that feels just as right with a sharp tux on the red carpet as it does slipped a little loose with a T-shirt on a Sunday. In Cartier’s latest campaigns, the Marvel alum doesn’t just wear the Santos – he feels  like it: cinematic, precise, a little bit rebellious, and quietly timeless. From aviation da