I've got this topic posted in the 'other' group but it hasn't generated many responses, so I'll give it a go here.
I just got a Wurthner 400 Day Moon Dial clock. There doesn't seem to be much information on the web about this one. Nor could I find any eBay auction so I could determine an approximate value.
The dial is in nice shape, as well as the pillers and pendulem. The base is very tarnished and most of the deep blue paint is gone.
I've repolished other all brass bases with good luck, although not able to relacquer them. They then need repolished every couple of years.
Should I polish the base and repaint this one, or leave it alone? I haven't decided whether or not to keep it as yet so I don't want to diminish the value.
I've ordered a suspension unit for it. It appears to take a No. 26 suspension unit but Timesavers, LaRose and Merritts don't have this number. LaRose shows that a 6789 unit works and that's what I ordered. Timesavers and Merritts disagree in their catalog. I emailed Horolovar but no reply. The 10th edition doesn't mention the 6789.
I am curious if there's enough oomph for the moon dial to reliably work. I know it doesn't take much to keep a regular one from working.