Wrong question, the question should be "do you have a gen, and are you being so critical of that?"
And the answer is nearly always no cause not many people have a gen, and those that do don't look at them to see if anything is how it should be on a Rolex, because it's a Rolex!
And despite what YouTube "spot a fake" videos will tell you a Rolex is far from perfect.
A VSF (or Clean, or ARF) Sub is 95-98% of the way to what is for most of us a £12000 watch and on a good day you'll get one in m2m for under £400.
It's near enough, with a bit of thought most people will realise you've probably not dropped £12k on a watch anyway, if that leaves a bad taste in your mouth, buy a gen you can afford, a nice Seiko fifty five fathoms maybe.