I really enjoy cheaper vintage watches that call back to when everyone had one of them on their wrist.
Something about a semi-autonomous machine ticking away on your wrist, whether you're looking at it or not, using no electricity, is just intrinsically satisfying to me.
I got into watch servicing pre-covid, but never got into actual fabrication of parts. I mention pre-covid because it really got popular when everyone was stuck inside and there was a sudden loss of cheap ebay parts watches to pick from.
He also recently started a watch repair shop specifically catering to cases most watchmakers won't accept, might be worth checking out.
That said, I'll keep it in mind and maybe if I come across a windfall will apply thusly....
If it isn't a hardship, I do recommend fixing your dad's watch. Sentimental pieces are always special.
I had an automatic that was my "one and done" watch - a cheap Citizen diver - I wore it 24/7 until it started losing minutes per day. While looking into who or where I could fix it, I bought a G-Shock out of curiosity and never wore a mechanical watch again.