Yeager, however, wore Rolex watches, favoring their sturdiness and simplicity over the complexity of the chronographs preferred by many of his contemporaries. Yeager appears to be wearing a Rolex Oyster of uncertain reference in photos taken during the Bell X-1 flight in 1947, link and he's also known to have worn a Rolex Submariner – a "Big Crown" ref. 6538. He's best link known, however, for his GMT-Master II ref. link 16710.