How to open this vintage Omega Geneve

Hi all,

Acquired this vintage 9ct Geneve at auction. Based on image search I think it is a ref 131.5016. Am I right in thinking its a bezel and crystal off job to get at the movement? Any watchouts?

Crystal also has some scuffs so any help finding the correct replacement also appreciated.

Thanks in advance 🙏

Looks like there might be a notch between the bezel and the case in the second photo, where you can insert a case knife. I agree this looks like a front loader.

If you’ve never done this before, I wouldn’t try with a gold watch as gold is softer and easier to scratch/dent.

the movement comes out the front , Bezel is attached to the crystal and comes off as one,
Tool goes in opposite side to crown where it looks like it’s been removed before with the damage.
Once removed and the dial exposed

it'll be one of two.

They’ll be a big circlip looking thing which turns a few centimetres up or down can’t remember which way that unlocks the movement and then the movement is rotated a small amount I believe this will have a split stem which will have to be removed FIRST

Or secondly
The movement is pressed in kinda and there is very little room to remove without damaging anything
I’ve removed a few of these fiddly but be patient or get a professional watchmaker maker to do it
I have seen another thread which I helped a guy remove his, he used a very thin blade and worked around (evenly ) between the case and movement and it eventually popped out the stem and crown stays attached


I’ll try and find the thread

https://omegaforums.net/threads/how...-old-thin-omega-from-1940-1960s.172312/latest

Have a read of this

Thnks for this. Turns out the crystal and bezel came off together and the movement and dial comes out together.

Inner case back is stamped 131/25016