An old submission to this thread, with (hopefully) a new audience. My one-owner 1971 Rolex Oyster Air-King Date. In 2021, I celebrated 50 years of ownership of this watch by adding a genuine NOS14-karat yellow gold bezel to replace the stainless steel one, thus making it my Golden Anniversary Rolex. Only after-market part of this watch is the bracelet. I won this watch in a Rolex sales contest in 1971. It came with all the papers, box, and hang tag, direct from Rolex. MSRP at the time was $ 215.00!
I don’t recall how I acquired the bezel, it was so long ago. (Over 30 years ago.) The MSRP on the bezel was marked on the Rolex envelope it came in. The price was $595.00!