Special caseback Rolex Daytona ... which originally they wanted to name " Le Mans " 1923 to 2023 = 100 Years " 24 Hours Le Mans " .
Not just a special case back, but a new movement. It has a 24 hour (not 12) totalizer at 9 o’clock. And a red 100 on the bezel. All in a white gold case with a price of “available upon request.” meaning Rolex will ignore you if you ask.