I printed all parts (except the back: layer height 0.28mm) with 0.16mm layer height and 0.6mm line width (on a 0.4mm nozzle). This way, 2 walls, 5 layers top/bottom and 20% infill are enough.
Printed the hands with less speed, like 20mm/s.
In contradiction to the original, M4x20mm screws worked fine for me.
The author remixed this model.
My clocks (13mm spindle height) where a tiny bit to high so I remixed the middle part to fit. Also my glass is smaller in diameter by 1mm, changed that as well so it does not rattle. These are the parts i used:
https://www.amazon.de/dp/B08LZ8CSHC?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1
https://www.amazon.de/dp/B09WYWJZCK?ref=ppx_yo2ov_dt_b_fed_asin_title
The altimeter face had a Kollmans window added at the 3 position.
Made hands to simulate a RMI, which does suit the clock look better (combine with heading face).