Tudor Was introduced in 1926 by none in addition to Hans Wilsdorf, founder of Rolex. Wilsdorf needed to start a brand that experienced the same track record for durability and precision as Rolex—but was much more modern day in its outlook. Weiss Watches was Started in 2013 by Cameron Weiss, https://www.watchesworld.com/a-history-of-watch-reference-numbers/