Just received my AA and it's an absolute beast! I have a Hermes chain d'ancre GM and it pales in comparison both in heft and comfort.
16.5cm wrist, I tried the 17cm sizing on the IH website which corresponded to 16 links but it was so tight I couldn't get it past my wristbone. I ended up exchanging for the 18cm/17 link version and it fits perfectly; it doesn't slide around too easily thanks to the weight.