Brittons Watches: Rolex - A Brief History, haettu 19.6.2008 "But the best-known Swiss watchmaker has always been something of an outsider in Geneva. Perhaps it's because the company didn't start out Swiss. As mentioned, Rolex was founded in London, in 1905, by the 24-year-old Wilsdorf, a German who became a British citizen after taking an English bride."
Brittons Watches: Rolex - A Brief History, haettu 19.6.2008 "In 1908, before anyone had uttered the term multinational, Wilsdorf trademarked the word Rolex, a name that's easily pronounced in different languages and short enough to fit on a watch dial."
Brittons Watches: Rolex - A Brief History, haettu 19.6.2008 "In 1931 Rolex invented the "Rotor" – a semicircular plate of metal that with gravity, would move freely to wind the watch. Thus, the Rolex "Perpetual" (automatic) movement was born."
