Stuck pushers on a digital Speedmaster 186.0009

Hi All,
An old dream came true when I finally got hold of a lovely little digital Speedmaster.
A must have for someone who's grown up in the 80's I'd say.
As it was extremely dirty, so after a quick disgusted wristshot I disassembled it straight away and the bracelet parts went straight into the ultrasonic cleaner.
I thought it'd be a wise move to exclude the case though. as it might damage the pusher gaskets and/or the crystal glue (if it's glued on at all?).
The only thing now is that, with one exception, all the pushers are stuck, no movement at all.
Could that be the grime there too? Or corrosion? Any ideas how to clean them, or get them to move?
Thanks for the help in advance

It may be something you trust to a watchmaker, but to clean up the pushers, you rice the little c-clips on the inside and they come out from the outside of the case. There will be a shaft with a spring and gaskets (o-rings).

Likely they are seized up with crud. They would not likely be corroded, they are stainless.

It's easy to lose the c-clips, so be careful.

Well if these aren't the c-clips style pushers, then I think you are in to a watchmaker's trip, I'm afraid. Unless you home how to press out and reseat that crystal without damaging it.

Thanks for chiming in gents, much appreciated;
Ultimately I am prepared to visit a watchmaker as a last resort; I just love to learn, so wanted to see first if this is something i could do myself.

I don't think it's the C clip type, at least can't see any C clips:


So I take it they must be the "disposable" kind?

OK so my options:
1. Crystal remove, chuck the case (with the pushers) in an ultrasonic bath, see if that works.
Q: I do own a crystal press, but that doesn't mean I'm 100% comfortable using it. Especially that i suspect this kind of crystal is glued on, rather than a press fit, is that correct? If not glued just pressfit, do I just press the crystal out from the inside, and then back in a reverse order?

2. If not able to remove the crystal, or option 1. doesn't work, remove the pushers to see if i can clean them. If not, find replacements.
Q: If the pushers are the "disposable" type, would it make it any easier to clean when removed from the case? If so, do I push them out from the inside? (using a tube press kit which i too own luckily)

3. Weirdly, Cousins seem to sell the corrector, but the pusher is restricted. I suppose that means i'd need to find a (preferably) UK watchmaker with an Omega account, that right?



Sorry about the many questions, I'm a keen learner 😀
Thanks for the help in advance

I would be extremely careful removing the crystal.
Unless you already know how and have done tricky shaped crystals, I'd refer it to a watchmaker.
I have done one on the Seamaster version (early 1 or 2 pusher model), that crystal came out with the use of a soft towel under the die and a lot of praying.
The pushers aren't really easily removed in a home DIY kind of setup. Real letdown on these models that they can't be serviced by an amateur watchmaker easily.

Thank you gents, your help is much appreciated, i think i will take it to a watchmaker