Hey Fab! Bienvenue with us!
Congrats for your new 177, I've just placed an order yesterday for a 005M & 177M from the H factory also.
As seen on the boards & experienced myself with my 111M, the H factory seems to come with funky crapy movements so a service can only make them more reliable.
Inside the EU you have "Domenico" who can do service & waterproofing (find him inside the Rolex section).
Otherwise a nice & little mod you can add is to polish the canon pinion.
Enjoy your new watch & again welcome here!
If you have any questions, feel free to ask them!
Best regards,
PS