Welcome,
We can now consider the can to be open and the worms are making their way out.
This topic has been discussed here and on other sites, and often leads to strong opinions on either side of the debate. On to your question...
You will get a lot of opinions, but if anyone claims to know the exact processes and specs used by Omega and all the others making ceramic cases, I personally would find that hard to believe. I don't believe you will get a definitive answer to this question really.
I have little interest in most modern Omegas, so for me it's not something I have any personal stake in one way or another. There is no doubt that Omega cases can break, but it seems the one photo that has been seen had no details about what happened to cause the break. I have been in touch with Omega here in Canada and they have also seen one case with a lug snapped off, but again no details were given as to what happened.
No doubt some will give you encouragement and others maybe the opposite, but I think it just comes down to your comfort level.
As far as the movement in the Speedymaster Pro models, it is robust and reliable, but won't be as accurate typically as the 9300 would be, but I still prefer it.
Good luck with whatever you decide.
Cheers, Al
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