Tudor Was released in 1926 by none besides Hans Wilsdorf, founder of Rolex. Wilsdorf planned to launch a manufacturer that had precisely the same popularity for durability and precision as Rolex—but was far more present-day in its outlook. The pink Alpina brand was encouraged by the Matterhorn mountain in Switzerland. https://www.watchesworld.com/a-history-of-watch-reference-numbers/