Help identifying IWC watch

Can some help me with this? It was given to me 10 years ago after my father
past away. Thanks,
Mitchel

It might be, but the dial has been insensitively restored

can you post more pictures showing better details and the caseback please.

Is this better? And thanks for replying.

I think your watch is a Caliber 401 from the mid 1960s.

To be completely certain, we would need to see the movement and serial numbers
on the movement and on the inside caseback.

Thanks Mark. I have no idea how to open the back. Do you think it would be
worth sending it to Schaffhausen?

If you have no experience at opening cases, I would not recommend you doing
it.

Any experienced and reliable watchmaker can open the case for you, give you
the details and service the watch.

Only send the watch to Schaffhausen if you intend fully restoring it, which
will be costly.

Get it serviced and enjoy this wonderful memory of your father. It's a very
nice IWC .

Thanks Mark, really appreciate you help. Happy new year to you and yours.