Hi there, could someone help me please! The winding stem of my 0819 fell out one day. I managed to find a replacement stem and crown but the problem now is that I'm unable to screw in the locking screw to keep it in place. The screw seems to be turning freely so I whatever it is screwing into is possibly missing or broken inside. I've been trying to find diagrams to identify the part number so that I can order this for repairs but there's no exploded diagram of the movement to be found. Could anyone shed some light?
Many thanks in advance,
Martin

