Vintage Women’s K&L and Argent Dore Silver 800 Swiss Pocket Watch (Not Working)

Preowned, Vintage - guessing 1920s or before (not confirmed by a professional). This was my grandmother’s and then my mother’s.  Wind up mechanical watch, no batteries. Condition: Not Working. Has not been cleaned or serviced. Crown pulls all the way out (Picture #7).  It does wind and will randomly run for a few seconds if tapped. Suitable for restoration or use for parts. Inside back cover is stamped “K&L”, “0800”, “Swiss”, “Arge Dore” (quite certain that is Argent Dore). Please see all pictures and video to aid in description and for signs of age and wear. Video and last 5 pictures taken with overhead light on, no filters used. This is a beautiful watch that I think would look so amazing worn on a long chain as a pendant!