Here is a great Art Deco Helvetia from the 30’s. It is not running and the case looks a little tatty. The movement however looks to be in very good condition.

Helvetia were very early to introduce their own shock protection system. On the photo you can see the lower jewel setting is fitted in a flexible steel arm allowing it to move during a shock.

I fit a new mainspring.

As mentioned earlier I had a very nice NOS dial waiting for this watch. The two toned silver finish goes very well with the blued hands!
I have ordered an open end leather strap, but a Nato strap does the job until it arrives.