It would take a book, and maybe even multiple books, to sum up Rolex. This Swiss watch brand, founded in 1905 by Hans Wilsdorf, has been the most recognized watch name around the world for decades. The brand created the first water resistant watch in the early 1920s, which it later named the Oyster, and went on to unveil many firsts in the watch world. It is regularly the partner of choice for explorers, adventurers, and divers, and has set world records. Rolex is best known for its Oyster Perpetual collection, the Cosmograph Daytona, and the Sea- and Sky-Dweller watches.