You’ve probably heard that having a “full set” boosts a Rolex’s resale value....

https://bizzmarkblog.com/how-do-buyers-check-if-the-warranty-card-date-fits-the-production-window/

You’ve probably heard that having a “full set” boosts a Rolex’s resale value. But here’s the truth: the warranty card is the real star. While the box looks nice, it doesn’t add much to the price