In on this one, promissed myself I will never buy an A7750 again after my ROO died....
Mate, you can not campers a A7750sec@12 movement from your AP with a A7750 movement from a PAM. That's two different things.
The AP movement has a chrono function and 5 gears more to bring the sec from 9 to 12. The A7750 in a PAM is a very solid base movement without all this extra loads
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