 In 1919 Rolex moved its headquarters to Geneva, Switzerland, where it remains to this day.In 1927 Rolex patented and launched the first commercially viable waterproof watch which was known as "The Rolex Oyster".Rolex also selected watch dealers in each town to act as exclusive dealers, and provided each of them with special window displays that consisted of an aquarium with plants and goldfish, along with a Rolex 'Oyster' wristwatch.