Tudor Was launched in 1926 by none besides Hans Wilsdorf, founder of Rolex. Wilsdorf wanted to launch a brand that experienced a similar track record for durability and precision as Rolex—but was more present-day in its outlook. Up-and-coming Danish luxury watch manufacturer Nordgreen is quickly starting to be a reference https://www.watchesworld.com/a-history-of-watch-reference-numbers/