1970 5513 Sub as a daily wearer?

[M@2]

Forgive me if this has been discussed ad nauseam, but my searches didn't turn up anything too relevant so far so I'll ask.

Is it a terrible idea to get a 1970 (birth year) Submariner 5513 as a daily watch? I wouldn't need it to be ultra accurate, but like +- 12 sec a day or so? Would the upkeep outweigh the fun of wearing it?

The oldest Rolex I've has was mid 80's so hoping to hear opinions/experience from anyone with an older daily watch.