Are these original parts?

[Softswerve]

Hi,

I’m new to the Rolex world and really loving the funky stone dials from the 70s - looking to make my first purchase. Found a dealer selling one that was never really worn and hoping to get your guys’ expert take on whether these pics check out on original parts, non-relumed hands, etc.

This is a ladies DJ and on the ones I’ve seen, they’ve always had either the orig rolex design or registered design engraving on the case back - this one doesn’t look like it has any engravings. Does that seem right? Thanks in advance!