Yes fluttering when setting the hands is normal when the pendulum rotation is about mid-point.
That is exactly what is happening. I could jump for joy
On an earlier post about a Gilbert I asked if anyone knew how to remove the varnish from the fake red marble panels. It has gone yellow and bubbly so needs to be stripped off. Would you know what to do with this Bob?
Thanks again for your help and hope I am not asking too many questions and hogging your board