The path of success of watches in the 20th century is not to be separated from the legendary founder of Rolex, the Bavarian-born Hans Wilsdorf. He had his first big success with the model Oyster in 1926, the first waterproof watch. Rolex consistently relied on sturdy and reliable movements, therefore survived the “Quartz- Revolution” and succeeds to this day. A Rolex watch would not be as incomparable and covetous if it was the result of technical expertise alone. What labels a Rolex is the felicitous bond of leading-edge technology and a distinct philosophy of life. The best-known models are: Date, Datejust, Submariner, Oyster Perpetual, Sea Dweller, Yachtmaster, Cellini and Explorer.