I have the Oris Big Crown Calibre 403 and while it's a gorgeous looking watch, the movement is a bit clunky in my experience. The crown sticks, and the date wheel every now and then becomes jammed and I have to play around with it to free it. None of my other watches have this issue. Maybe I have a lemon, but its a real shame becasue the watch is beautiful.

Just got myself a Radiomir 40mm and its amazing! Such a beautiful watch.