Hello quick question 18038

[UNLVino]

Long time lurker new member newbie question I haven't really seen answered. Quick history I have a Oyster Perpetual two tone small Roman dial - I am the proud original owner purchased in 2002 - recently my father in law passed away he owned a Day Date he bought new in 1980 - circa 1978 based on SN - while helping my Mother in law to sell it I realized I might as well buy it - I get a great deal and she got more $$. Of course now I have the bug! Was serviced about 2 years ago - I recall there was moisture under the crystal. Here is my question(s)

I cannot tell if the dial is original or replaced and if replaced is it Rolex or after market and is it original to the watch?

Been thinking of replacing the hands - should I?

If I'm too stupid to figure out how to post a pic - it's my Avitar