16800 crown replacement

[Flexjet]

Hello

Greetings from a 1981-16800 belgian owner, purchased a few weeks ago.
I need your help:
After having recently visited my Rolex AD, they noticed a little damage on the crown (original piece, jeopardizing its water proof ability) and propose me a crown replacement with a new piece out of their stock.
What do you think of it?
Same thing with the glasp of my 93150 bracelet, they suggest replacement.
I feel sort of unhappy with the idea of touching the original aspect of my 16800 but from another point of view, i want my watch to be safe and functional!
Any advise is welcome!

Thank you
FJ.

[Tools]

Hard to say from just these descriptions..

The crown can get pretty beat up without compromising water resistance, and there are a lot of other parts and seals there. Has a pressure test been done to know if the seals are compromised?

Same with the clasp.. they can undergo a lot before they need to be replaced.

[Flexjet]

Thank you Tools for your feedback
Rolex technician managed to keep original crown and change the tube + seal only, pressure test been performed OK.
Clasp will be replaced but all great; thanks for your kind revert