There's some info on the mechanism on t'internet. It ain't going to work in a watch.
https://en.wikipedia.org/wiki/Atmos_clock
https://www.jaeger-lecoultre.com/eu/...hes/atmos.html
https://www.hodinkee.com/articles/th...eger-lecoultre
Check out this recent thread for some more Atmos eye candy.
https://forum.tz-uk.com/showthread.p...re-Atmos-Clock