I was going to say that this is great because it's actually functional, unlike a lot of mods which just have decorative parts tacked on. However, I can't see any connection between the clockwork and the hands - is it just a standard AA battery clock mechanism doing the timekeeping? Nonetheless it is finely crafted.
The way the clock face is textured by the 3D printing infill actually looks nice. I wonder if that will become a deliberate aesthetic in the future, like woodgrain or carbon fibre weave are now?
For future videos, try dialing up a higher frame rate (say, 60 or 120) in the camera when you shoot it, and then play it back at 30 or 24fps in your edit, to make your B-roll shots look more dramatic.
Neat build, though. What does this machine actually do?