Hullo, been stalking this board for ages (some amazing posts!!!!), and, well, today I was surfing one of my favourite sites and found an entry for Magnum stuff that I thought some of you may enjoy (and even buy!). Nice da nang cap too!
Just scroll down to where it says Garb Magnum and take out your credit cards http://www.uncrate.com/more/index.php?page=17
He was wearing the Rolex GMT Master that he wore in Magnum. According to another member on the forum in the episode Death and Taxes he did have a Seiko on that was seen for a split second. I have heard that his father gave him the Rolex as a graduation present but I have no proof that the story is true. My mother recalls hearing that he received a watch from his father as a present on an old tv interview.