How do I get the movement out of this: 1960s Omega 131/25016

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I have worked on a 2 other vintage Omegas (new hobbyist), but haven't had a problem getting to the movement until this one.

This is a fresh eBay purchase that showed up today.

It looks like I should be able to pry out the movement where I have the red lines, but it seems to not want to move.

Also, the picture of the back with the white line does not look like it can open there. I think it's just an aesthetic line.

Any help on how to remove the movement would be greatly appreciated.

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red2_d1dec71b192ad0b988f609ca1e37d52290e1f2fd.jpg

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Maybe this.
The split stem should pull off and you can rotate the dial/movement out of the retaining clip in the case.

Search for Omega Monocoque/Unicoc/Unishell case.

Monocoque.



Unicoc/Unishell.

 
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Front loaders usually use a split stem. You have to pull the stem out with some force and it comes out in two parts.
Then the movement is rotated a few degrees counter clockwise as I remember, there are fingers in grooves called case clamps what hold the movement in. Any prying will damage things ireversably.

If this is not a front loader and has a solid stem, then pulling the stem can damage it and the winding mechanisim.

Better would have benn to have gone to someone who knows what they are doing. The dial is sensitive to finger oils. So proper protection needs to be worn. These are called finger cots and look like condoms.

The hands look like they may have been bent. Special hand manipulating tools and tweezers are usually used.

If one is wanting to learn watchmaking this is not the watch to start with. Better to get an A Schild or ETA watch. Or several dozen an practice on them first.

If one is wanting to get a watch, clean it and flip it, there are much simpler ways to make a living with much less competition.

Edit and jim posted the same time I did.
 
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Thanks for the replies, that was very helpful. I gave a moderate tug on the stem and it did not want to come off.

From a search I found this thread: https://omegaforums.net/threads/1969-omega-geneve-9k-gold-131-25016-–-serviced-unpolished.78148/

It appeared that the movement should just come out. I pried a bit around the circumference and it came out. I was just too cautious the first time I tried.

This thing has a ton of watchmaker marks on the back. I'm not sure how much they will show up in the pic, but here it is:

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This is only a hobby for my entertainment. Any watch I buy will either be destroyed by my incompetence or worn with pride. 😀
 
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I took this thing apart today. I'm pretty sure it's been serviced recently as I found some wet lubrication in there. The other watches I've taken apart have been filthy with all dried lubrication.

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