Note also that Rolex supplies parts only to registered dealers and repair shops, and they are expected to turn away watches with shady provenance which might be grey market. They even make the repair shop return the worn parts, to prevent refurbishing and re-use. While independent dealers can source alternative parts, you now have a watch with parts potentially better but more likely worse than original manufacture.

As much as I appreciate what Rolex can do and be, I find this parts-and-repair behavior really tacky.