Hans Wilsdorf, the founder of Tudor, created by Rolex. Actually the founder of Rolex. In 1905 Wilsdorf established his own company in England and began producing top quality watches. It was in 1908 that he began the Rolex brand, he first opened Tudor watches in 1946. The brand name Tudor was chosen because Wilsdorf wanted to pay tribute to the Tudor period of England. The most important difference between Rolex and Tudor was already inherent in the 1940's when the first Tudor Oyster reached the market: Inside the screwed-in Oyster case, there was not a Rolex manufactured movement, but a movement supplied by Ebauches SA, ETA. The Rolex company still places value today on the fact that the modified automatic calibers by ETA are "especially made for Tudor." Conceived right from the beginning as the "second" brand, Tudor is more moderately priced than its bigger, more famous brother. Tudor watches were used by the French Navy for its divers, with the first Tudor Submariners being bought in the late 1960's. And also the same model was used by the US Navy for its UDT and Navy Seals. Even with an aristocratic name of its own, a Tudor is still a Rolex.