I recently found this Heuer but could not find any information about it. I check all the catalogues here but couldn't find one that resembles my watch.
Hope you guys can give me some more info.

The watch has a plastic crystal, just like early pocket watches had. I understand that after 1940 they start using acryllic crystal. It also doens't have a shock protection system while the ref 347 has a system. On the other hand the bridge is signed, while the really early ones weren't signed.

Never seen the case design before. It is plated with a stainless steel back. it is 36mm wide. The watch is going to my watchmaker soon as the wheels are a bit corroded. Don't hope there is much water damage done. Crown is missing but a non-branded crown shouldn't be to hard to find (hopefully).

Made some quick pics, hope you can help me out!