Pilot watch model. Truly, IWC's Mark XVIII has basically turn into the prototype for aviation watches: large numerals, a large crown, and a triangle at twelve. Owned by Rolex, Tudor watches give rugged simplicity. Think of it as being a leading-high quality watch to the outdoorsman. Muted shades for example https://www.watchesworld.com/our-watch-picks-for-a-stylish-spring/