Put the word SPACE on any product and I'll give it a second glance, it's the boy in me. Mix that fact with a vintage Rolex and the game might as well be over. There are plenty of variations of the Explorer, but this piece from the early 60s has got to be the coolest. Hodinkee does it justice with researched rhetoric, so I'll let them give you details, but you may drool over it below.