Looks great from a cosmetic perspective. Interested to see a video of the functions of the watch too.
The bezel rotates to move the month indicator.
Regarding crown functions, it works like a 2836 ICHS.
Crown 1 - winding
Crown 2 - Quickset date (clockwise)
Crown 2 - GMT wheel set (anti-clockwise)
Crown 3 - Time setting
The GMT wheel setting in crown position 2 is continuous (no discrete steps) which can be a blessing or a curse. I prefer it this way because you have unlimited control over exactly where it is set, unlike a 2836 ICHS GMT hand which jumps only to specific points 1 hour apart dictated by the click spring.
However it can be a little frustrating to set the Sky-D 24 hour wheel exactly where you want it because there is a little lag in the gears so it can shift a little when you push the crown in and the wheel can lag a little til the gears catch after you've reset it. At times I have taken 8 or 10 attempts to bracket my positioning of the wheel before it stayed working the way I wanted it to. Once it is set, it's best to leave it alone.
Video here
https://www.reddit.com/r/RepTime/comments/h79bzd/yesterday_utheycallmederek_posted_a_link_to_a/