Hi! My old grandpa's watch: What model is it?

Hi!
First time poster, I'm from Italy and I've recently acquired my late grandpa's watches.

I'm sorry to bother you all with such a boring question, but I'd really appreciate to know more about this watch:
I didn't get the watch directly from my grandpa since I was still a child when he died, and it would be nice to know more about it.
(To be clear: I'm not really interested in knowing the market value though, not planning to sell a family memorabilia)

INFO:
It was bought in Italy circa 1989, it's has got the 750 Common Control Convention mark and another mark I cannot tell (you can find the best pic I could take of the mark in the attached pictures), it's powered by battery, I don't know what marks are inside (I will for sure ask to take a picture next time I bring it to have the battery changed).

LOOKING FOR: just the model name, I understand that for better info the number inside of the case would be needed so I'll wait for that day.
If you have general advices, I'll gladly accept them though! Overall I think it's in good shape, but if there is some maintenance needed for this kind of model I'd love to know.

I hope I won't bother you too much and that it isn't a stupid question: I've tried looking in the forum and on google already, but I really couldn't find what exact model this was.

Thanks in advance!

Edit: I accidently posted before finishing the post, fixed it

Congratulations and well done on bucking the trend and selecting an avatar! In addition to the leather balm, I suggest that you replace the strap and keep the original in a drawer, as it won't last very long with regular use.

Thanks!

I had no idea that at the time most of them didn't had a model name or general pattern! That's quite interesting!

Next time the batter get replaced I'll ask about checking the seals, just in case.
I already thought about moisturizing the leather, but probably I'll end up replacing it for a more modern one for peace of mind.

Thanks!

I'll probably follow that advice, at the very least for peace of mind not to ruin the leather.

Shall I go for a gold buckle of the same kind of gold and call it a day, since the original is preserved and safe, or shall I consider an proper omega gold buclke and strap replacement?

The buckle on your current strap can be reused.

Oh, I didn't realize, I've just looked at a tutorial online on how they do it and now I get it.

Thanks!

@Grandpa'sVintage

I'm relatively new to Omega's vintage watch range, but it kind of reminds me of a De Ville dress watch.

Just enjoy wearing it whenever you can.