Preservation/restoration thoughts please

I hope this is the correct sub-forum for this question! I took my father's dress watch out today to give it some "exercise" and thought I'd ask some advice about it. I gave the watch, a Haste triple date chronograph with a Valjoux 72c a close look for the first time in many years and noticed several cosmetic condition issues. In addition to the cosmetics, I am wondering if I should go through the expense and effort to have it serviced even though all functions work well. First the service quandary arises from the knowledge that the watch hasn't been serviced in at least thirty years and may never have been opened since new. I wear the watch once or twice a year and I don't know how often he wore it in his lifetime. Should I have it lubed etc. if it gets so little wear? I know that watchmakers and parts are getting rarer with every passing year so that is a consideration. As for the cosmetics the plating on the case is worn on the lugs and is the base metal is visible which bothers me a little. The dial is in relatively good condition considering the age I think but I did notice that the paint of a couple numerals is flaking and is floating under the crystal. Are either of these conditions fixable? I know that "redials" affect value but would judicious touch up be a redial? Can cases be re-pated/restored? The watch will likely remain in the family as my son likes watches as well so value isn't the main consideration it is really a matter of preservation for future generations and wearability long term. As always thank you for input!

Thanks for weighing in Dan! I was hoping y for your advice. would preserving include, as lindo advised a basic service? while in if I do should I have the loose ink removed?

Like I say I wear i once a year for a few hours out of deference to Dad. It will have to get in the que though. I will get an estimate from my jeweler who seems reasonable on the Omega autos he's had done for me (averaging $300 incl parts) with very quick turnaround. Does that sound ok for 50's-60's calendars?