Re Case My Omega Electronic Chronometer F300

[suparobg]

I am having problems getting the movement to stay in the case when i try to put it back in. It won't stay in so I can tighten down the case clamp screws.

When I removed the movement I loosened the screws on the case clamp and turned the movement or used an unscrewing motion and it came right out no problem. But I would like to know how I can get it back in easily. What are the steps?

here is a couple of pics of the movement