Will replacement hands and a new crystal void my warranty

[WhiskyVerb]

Please pardon if this is a repeat post - I searched but could not find an answer. It's also my first post.

I recently got my first Rolex, the Explorer I - 214270. LOVE IT!

If I could change two things; Longer and broader hands - for readability. And a domed Crystal for aesthetic preference. I would want only genuine, not aftermarket parts.

(1) Is this possible and (2) would it void my warranty? I've only had it about 7 weeks.

Please don't post "learn to love it." I already do.

Thanks for your help.