Here is a quick view of my WM-10 collection. I've been restoring these beauties for the past couple of years. The red one is my favourite which is in absolute immaculate condition and is my daily driver that I like taking with me Each of these had its own issues, belts, dc2dc board, corrosion and etc.
Cool, they look great! I only have a WM-30 in great condition; the WM-20 and F20 also shown below look nice, but have a few scratches and small dents. They don't work either , I bought the last 2 just for their looks. Although very small at the time of release, the miniaturization race seemed to be at its peak mid 80s. The result was 700 series that came out a few years later, virtually the same size as the WM-20 and WM-30 not extended!
They are less corroded than the seller told me. Nevertheless, the WM-20 has a broken reel gear in 2 places. The F20 has some detached wires and visible corrosion on the rear, internally paint is coming off. No broken gears as far as I can see. I’ll clean them more thoroughly than the previous owner and put them back together.