I just got the box. A opened it and looks perfect. Beautiful. I tried using Siri and calling but it does not detect my voice. The speaker seems to work ok. I am reallt worried. The rest of it seems to be working well but this is somethig extremely basic and important.
To me it seems like the microphone is being blocked by something. Even when y press the digital crown to use Siri the waves dont even move....
Try "hey siri" to see if it kicks into the siri screen at least, then you can see if its a lag issue or a mic issue... i would also try rinsing it off then drying it with particular care to the mic port to see if anything is in there that shouldn't be.
The plating is far too thin to actually obstruct the opening, and unless your waterproofing failed, I can't see how else it could have been damaged, so hopefully this is some software glitch....