How to remove this vintage omega winding movement.

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lamine

·Tues. 11:12am

I need your help in removing the movement from this vintage omega watch, I believe it's caliber 620.

 

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mac_omega

·Tues. 11:30am

Have you tried from the back?

 

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DON

·Tues. 2:35pm

Showing 50 images of the front when you only need one.

I’m guessing the dial posts are broken. You remove the back to remove the winding stem. Dial and movement come out the front.

Dial now going to need repairing to replace the posts

 

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lamine

·Tues. 5:27pm

mac_omega

Have you tried from the back?

Hi there, I tried but apparently this watch is a front loader unishell case even though the steel round part on the back case looks like snap on but it's not, I have found online photos of the same model with the lid removed to show the bottom side of the movement like illustrated in this online picture:

I am a bit confused to tell you the truth.
Thanks.

 

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lamine

·Tues. 5:30pm

DON

Showing 50 images of the front when you only need one.

I’m guessing the dial posts are broken. You remove the back to remove the winding stem. Dial and movement come out the front.

Dial now going to need repairing to replace the posts

Hi there, I managed to remove the dial easily with damaging its feet , but I can't figure out to dislodge the movement.

 

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lamine

·Tues. 5:31pm

I meant without damaging the feet of the dial, the dial is still intact.
Sorry about the confusion.

 

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la_lusigne

·Tues. 5:52pm

If the watch you have is the same as the one you posted from the website, it is not a unishell.
The steel back should be removed using a thin blade into the side of the caseback where you see an opening.
After that, unscrew the 2 screws shown below with the case clamps

Don’t forget to remove the crown and its stem. After that the movement will be freed.

Edited: Tues. 6:00pm

 

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lamine

·Tues. 6:40pm

Hi there, before I went removing the bezel, the crystal and the dial , I tried to pry open the steel back but I couldn't despite using all kinds of tools , I invite you again to look at the back case of the my watch and see if it has any resemblance to the online photo showing the bottom side of the movement, I appreciate your feedback.

 

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JimInOz

·Tues. 8:35pm·Melbourne Australia

As @la_lusigne noted, there should be a slight gap at the edge of the caseback at one location. Start with a thin blade and use it as a wedge to increase the gap until you can use a thicker blade to wedge the caseback off by moving around the edge of the caseback. Let the blades do the work and don't try to lever it off.

 

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lamine

·Wed. 5:23am

Thanks for your advice.