Watchill

Does anyone know this?

How can I adjust the stem length?

Mine has a 4813 movement, are there any compatibility problems with the movement, stem length, etc.?

Hi all, a few months ago I have bought the Omega Planet Ocean 42mm 5th gen. from joshua. Now the crown won't screw back in anymore, it keeps popping out when I try. The reason must be that the tube is worn off, way too quickly imo as I didn't wear it much. Does anyone have had a similar experience? Where can I get a replacement tube, as it seems to be the only way to get the crown back in? Thanks Watchill