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2240 Chinese (I think) Stem Removal Help

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Help.  I have what I think is a 2240 Chinese movement where the stem will no longer screw down and stay there. 

Tried to remove the stem and BAM... I found out I have no clue where the stem release is on this baby. 

Can someone show me? 

IMG_0569.thumb.jpg.57e1575823c391fb5ce06c4460e47e0f.jpg

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Do you have the stem in the winding position or setting position? Some movements need to be in one or the other to get access to the release mechanism. It looks like the crown is pulled out (setting position) which for some movements (Seiko NH34, for example) will hide the release. Try pushing in the crown and you might see a little dimple on the end of the setting lever.  Look for it a little above the stem.

 

 

seiko stem release.jpg

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