The wristwear of presidents has always fascinated us – and when I say "us" I mean basically all watch-loving brethren around the world – because we know why we wear a watch, but the concept of the most powerful man in the world taking the time out of his day to choose a particular wristwatch seems so fantastic. My old friend Eric Wind has been keeping a running list of all presidential timepieces here, but this morning we have a new watch to add to the list, and it belongs to our most recent ex-president. Mr. Barack Obama, less than a year out of office, is now a Rolex man.