Classic Rolex Explorer I. I don't get this fascination with gigantic watches. After all, how big does a watch need to be? Do huge watches have a super complicated movement that needs to be in a gigantic case?
Back in when it was introduced for the first time, Rolex Submariner was the only watch that could resist water-pressure up to 100 meters feet). This timepiece was the perfect tool for professional divers, but it also possessed the sophisticated