Heuer automatic

Hello experts!
Can anyone tell me anything about this watch? Yes, I know, poor condition.

But on the plus side:
it keeps time perfectly;
date, day, and month advance as expected; bottom second dial moves flawlessly.

On the negative side:
dates along outer rim can't be seen;
green hour & minute hands do not glow (tritium?);
severely scratched crystal.

Any information would be appreciated:
Age? Model? Value? Should it be cleaned? If so, what would be a fair price and what is the best process?

Thanks in advance!

Any help would be appreciated.

Thanks, David, for your insight and recommendations. I don't think the hands have been re-lumed as this was my father's watch and I remember the green hands glowing back in the 60's. Do you or anyone else out there have an idea about this model's name or age? There is a number on the case: 94270