So a co-worker who knows I like watches gives me this piece to look at. Certainly old .. perhaps a woman's lapel watch converted to the wristwatch.
It has an onion crown, a ceramic dial with silver inlay and something I am not certain of .. a button with guards next to the crown. It could be a safety to prevent changing the time unless it is depressed ... or ... something I have not heard of.
Opening the back, it's a solid top plate so you cant see a thing except that the hairspring is an exploded bird's nest. Metal "jewels" and "Swiss Made" stamped on the plate, and a series of silver marks and other marks on the case back interior
The Pictures: