So this is probably a dumb question...but is the clock at all accurate? It says it stops periodically when there isn't sufficient fluctuation in temperature so do they manually correct it after?
However, the mechanism that makes the clock tick-tock once per second is, again, separate from the winding mechanism, and I don't see why you'd have to (as another poster commented), "choose 1".
The Clock of the Long Now operates on similar principles (temperature difference), but separates timekeeping from the display mechanisms in part to maintain accuracy.