Need help with my new rolex deep sea dweller

[Steboyi]

Hi just signed up right now as I need some help...
Today I received my new watch and have some doubts if real

Watch itself it heavy and very nice all seems fine but the the strap near the clasp came apart and I haven't even wore it yet.
Also another problem is the box it isn't soft or nicely presented inside feels hard and like a egg box. Not sure if this is normal also the leather wallet smells plastic.

Slight scratch inside the watch default but hardly can see unless close inspection

Clasp isn't a dark stamp but more light grey looking.

I paid top end price for this new watch from a retailer as a brand new model I expected flawless finish and a nicer box .

Rolex oyster perpetual date deepsea pics will be uploaded shortly
Sorry about this rushed post

Just looking for some help as this would be getting returned if not genuine
Ant. Tips on spotting a fake or fake box.