Which makes me say that the AM is different from the Pakistani Milpsec is that on this last one, you have the Pakistani symbol ( P with an arrow above ) engraved on the case back AND on the plate, while on the AM, you don't have these details.
On the Bund, the cases are different, you're indeed correct, but the engravings are the same.
Now, of course I don't know all, and I am unable to explain the AM mystery.
Some say that the AM are TR 900 leftover... Which can be true when the AM has the TR 900 case, which is not always the case... As we know.
What makes you tjink that the AM are linked to Pakistani?
Best,
Nicolas