Are all crowns screw to stems?

[shahn]

Hi,

I have an 80’s quartz Citizen watch that its crown came off a while ago and I don’t have access to. As you see in the picture, the stem is not threaded. So the question is, all crowns screw to stems or are there crowns that can be snapped to the end of my stem? 
 

 

[jdm]

There is no stem visible, what came off was just the outer of the crown. Open the watch and you will see the stem. Once the remaining portion of the crown is unscrewed (apply some heath first) you will need to replace the crown complete. Look on Ebay or Cousins UK for a suitable one.

BTW we have a dedicated section where is considered polite for new members to introduce themselves.