Found an inherited Rolex in a drawer, or picked one up locally and wondering...

https://highstylife.com/what-does-it-mean-when-a-rolex-has-service-parts-that-arent-rolex/

Found an inherited Rolex in a drawer, or picked one up locally and wondering what’s real? A tiny crown at six o’clock can help date some models, but it’s only one clue—not proof of authenticity