Master Co-Axial vs COSC Accuracy Specs

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Greetings,

I know the accuracy specs for the Master Chronometer, but what are the accuracy specs for the Master Co-Axial?

Is it the same as COSC? Or is it close to METAS? I have a Omega 8500g movement and I heard it’s the same as the 8900 movement but without the METAS certification.