Well to be pedantic: the time-keeping part isn’t the gears but a pendulum. The spring gives energy to the pendulum, but that can’t effect more than in its ampl

Well to be pedantic: the time-keeping part isn’t the gears but a pendulum. The spring gives energy to the pendulum, but that can’t effect more than in its amplitude: the period of a given pendulum is constant. Later springs demultiply the tick tack of the pendulum into desired units. The heart of the clock is that choke on energy though a period. Thats also why the famous phrase: clocks dont measure time but other clocks. (Please dont mind the grammar: writing on mobile)