Service/restoration Helvetia calibre 75A

The  dial is not bad, but I have a very nice NOS dial that will take it’s place.

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 take the movement apart.

I have cleaned the movement and it is ready to be put back together.

I fit a new mainspring.

I doubt these parts where Epilam treated when new;)

I fit the shock protection system and see that the balance moves freely.

I put the gear train in place.

The movement is very nicely made with 3 individual train bridges.

Movement back together and ticking.

There is a large beat error so I adjust the collet and try again.

Movement on the timegraph.

That’s excellent for such an old watch!

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 had the chrome case restored and it looks superb.