escapement

An escapement is a crucial component in mechanical clocks and watches that regulates the release of energy from the power source (like a mainspring) to the timekeeping element (such as the pendulum or balance wheel). It controls the motion by "escapting" or releasing gear teeth one at a time, ensuring the energy flows in controlled, precise pulses. This consistent release maintains accurate timing and keeps the clock or watch's hands moving steadily. Essentially, the escapement acts like a gatekeeper, translating stored energy into regular, measured movements necessary for accurate timekeeping.