I inherited this watch from my grandpa some time ago, yet only recently discovered it in one of the boxes. Haven't checked the legitimacy yet, but it's so beautiful that I have no intention of selling it. The arabic dial also seems very unique. I find it funny that just as I got into watches, I found this one by accident.
This was fake, but assuming that no genuine Rolex owner has ever used a third party replacement crystal is a pretty terrible way to judge what's real and what's fake.
Almost as good as thinking that having a box and papers means it's real.