Cheers Mates...
Yesterday I got an very nice original blue pouge watch in my home, suddenley the crown fell of. And had inwindede itself out from the stem. I managed to turn it on loosley, and opned the watch, and got out the stem with crown. I put it togheter, and screwed the crown to the stem as hard as I could without braking the threads. I put i back once more, and the same thing happende again.
This time I took a tiny amount of blue loctite, and screwed it back togheter. I put the stem into the watch by pressing the same point as when I took it out, at the same time I wiggled it a little bit.
But when I tried to set the day and date by using the quick set, I could not get the stem long enought in, so the date just moved a little bit. And fell back again, somebody knows what todo?
The watch goes very good, keep the time, and have no need for servicing now....
All the best....