To be fair, Rolex did have a long, but ultimately unsuccessful, connection with Everest. While the first serious attempt on Everest demonstrably used Borgel, with George Mallory's Borgel recovered and now at the Royal Geographical Society. This assault may or may not have succeeded, but the next generation to attack the mountain generally wore Rolex, a fact Rolex is quick to point out. Eric Shipton, for example, wore one of the very first Oysters, in silver. while John Noel carried an Elgin pocket watch. Both with screw down front and back.
Shipton carried on wearing an early Oyster but was the victim of an establishment coup which saw him replaced by Hunt. Post war, the Swiss '52 expedition was equipped with Rolex and failed. The '53 expedition was equipped with watches, (A409) alarm clocks (KA22) and a profusion of instrumentation by Smiths. Rolex provided Oysters (6098). In addition, Griffith Pugh, the man who cracked diet, hydration, acclimatisation and oxygen rates, allowing the expedition to succeed, wore an Omega (CK2287) chronograph with a 321 movement.
The first, and unsuccessful) assault team comprising of Tom Bourdillon and Charles Evans both wore Oysters. However, their technically advanced rebreather system failed and they had to retreat. Hillary and Tenzing, the strongest climbers of the team, but both 'colonials' and lower down the pecking order, made a second assault using oxygen tech basically unchanged since Mallory. Contrary to a lot of internet claims, and indeed claims later made by the family of Tenzing (that Tenzing wore a gold Rolex Datejust given to him the year before) both were wearing one watch - the Smiths A409. Hillary's is currently in the Science Museum. Tenzing's, worn on an 18mm Bonclip bracelet and clearly (and unclearly) visible in more than a few RGS photographs and seconds of film seems to have disappeared, as have the eleven other Smith's watches and well over half of the Rolex.
So Rolex were, from '21 to '53 at least, intimately involved in failed attempts on Everest. If you want the watches that made it to the top, you are looking for a Smiths A409 (or at least a variant of it that's almost a Benson) or an expedition (rather than military) 1915 Borgel with a Fontainemelon 1 movement. Like so:
I think Mallory made it...