I picked up an Ertus with the ETA 1080 movement in need of a service.
The movement looks good, but the plate and bridges are a bit dicoloured.
No doubt that it’s time for a service.
Not much dirt on this movement. I don’t know why this movement has this odd colour.
The mainspring looks okay and goes back in the barrel after a clean and greasing. 
Not bad at all for this movement with an old mainspring.
Movement back in the case.
That is a great looking vintage watch. I thought this nice dial would look better with new luminous compound on the hands.
Hello,
Thank you for the work you publish, this is a great site!
I have a late 1940’s Wittanuer I’d like to do some work on. It has a Swiss made, 15j movement that looks extremely similar to an ETA 1080. I’m trying to find a technical manual for this movement.
I wonder if you could offer an assistance in my search.
Thank you for your time and consideration.
Best,
-matt
I don’t have a manual, but you shouldn’t really need one.
What a nice little watch, great Mitka!!!
the bridges (particularly the bottom plate) look a little like partially oxidized copper or copper plated finish.
Maybe a reaction to some experimental cleaning fluid..
The colour looks like the effect you get on unevenly tempered steel…
Yes, this could be heat affecting the movement…
Got to practice applying luminous compound with you, Mitka!