Well, I managed to trim the stem to the correct length. I was able to wind the watch, move the hands back and forth, change the date (it felt a little "dry" at first).
And guess what? the watch is not moving!!!!! the balance wheel is frozen. Any ideas on what could be wrong? could it be "stuck"?. I can set the date and time via the crown it's just not moving on it's own.
WEIRD.
Thanks in advance!