Inherited 1982 Submariner Date Questions

[David16800]

Hello, I inherited this 1982 Submariner from my dad. I have the original box, original outer box, the certificate with the serial number, the red seal, the anchor, the two booklets for Submariner & Oyster Perpetual and a couple of receipts for service, one from 1999 $600 and the other 2009 $395.

I plan on getting it serviced, no matter the cost.

I'm not a watch person but I quickly ran into the concept of don't let Rolex change the hands, don't change the dial and don't even polish it because it will destroy the value. So that's where my questions come in. Normally, I'm the kind of person that tries to keep things like this like the day I bought them, I don't customize things to make it my own etc.

How much does it devalue the watch really to have replacement parts?
If they replace hands, crystal, bezel would they replace the dial? There's nothing wrong with the dial I guess but of course it doesn't glow. Do they replace those with current Submariner parts so it looks like a new 2024 watch? So I could go either way and am undecided if I want it totally original, or if I'd want it looking brand new.

So what's your advice? Since its not in tip-top shape and obviously well-worn, is it going to hurt the value that much to do whatever they recommend? I'd like to see people's opinions who are more knowledgeable on what I'm doing. So how's that for post #1? This has to be a common question but I didn't find anything on it. Thanks in advance for your thoughts or advice!