Removing movement? 166033

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Can anyone tell me how to remove the stem from this omega deville 166033, I've removed the crystal, I dont need to remove the hands. I just need the movement out so I can clean the case. Photo of the stem area attached

Cheers

 
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It should have a split stem - you need to pull the crown off by separating the split stem, which will require some force.

Then push the remainder of the stem on the movement, inwards to the winding position. Then rotate the movement CCW slightly and turn the case upside down - the movement should drop out if you have turned it to the right location.
 
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Did the whole thing, took apart, cleaned and got everything back on even the crystal etc, looks fantastic.....but I forgot to run a timegraph test, just did it and it needs some serious adjusting. I have to do it all again....😡. Good Practice though....