I also still have over 1000 of these working 801 modules for all the Lady Pulsar LED watches.
Manufactured back in the 1970's in Lancaster ,PA
100 percent Stainless steel case and bracelet.
It should be easy to just remove module from old case. Then place in new case. add batteries, screw back down.
And it will look like you have a new watch.
My Dad and I ran Pulsar Repair Service back in the early 1980's
They are leftovers after we closed in 1984.
I have never tried selling just cases and bracelets before on ebay.
Due to their age . I will not accept returns.