Pilot watch manufacturer. Seriously, IWC's Mark XVIII has practically come to be the prototype for aviation watches: large numerals, a large crown, in addition to a triangle at 12. The model also uses best-of-the-line products like titanium. And its models like Da Vinci and Portofino will blow you away with https://www.watchesworld.com/our-watch-picks-for-a-stylish-spring/