Importance

Loading Importance Indicators...

Abstract

An electrically controlled mechanical watch includes a mainspring, a speed regulator that controls a rotation cycle of a wheel train, a control unit that controls the speed regulator, a power generator, a first power accumulation device, a second power accumulation device that is coupled to the first power accumulation device in parallel via a switch, and a detection unit that detects a mechanical energy amount accumulated in the mainspring. In a case in which the switch is in an off state, when it is detected that the mechanical energy amount exceeds a first set value, the control unit controls the switch from the off state to an on state. In a case in which the switch is in the on state, when it is detected that the mechanical energy amount falls below a second set value, the control unit controls the switch from the on state to the off state.

Loading the Abstract Image...

First Claim