A watch with annual calendar setting, the watch including at least one setting member configured to displace an hour hand and/or a minute hand, at least one detecting member configured to detect the date change, and at least one central processing unit configured to deduce the set date, to actuate the motor and to implement the annual calendar setting method.

A watch with annual calendar setting, the watch including at least one setting member configured to displace an hour hand and/or a minute hand, at least one detecting member configured to detect the date change, and at least one central processing unit configured to deduce the set date, to actuate the motor and to implement the annual calendar setting method.

An electronic timepiece that shortens the time from starting to completing indicator position detection. The electronic timepiece 1 an indicator 11; an actuator 12 that drives the indicator 11; a light emitter 21; a photodetector 22 that detects light emitted from the light emitter 21 selectively when when the indicator 11 is at a reference position; and a control circuit 35 that executes a first mode to drive the indicator 11 continuously in one direction until the indicator 11 is detected while the light emitter 21 is emitting, and a second mode to alternately drive the indicator 11 and drive the light emitter 21 to emit to detect the indicator 11 at the reference position after the photodetector 22 detects light in the first mode and the indicator 11 has past the reference position.

An electronic timepiece that shortens the time from starting to completing indicator position detection. The electronic timepiece 1 an indicator 11; an actuator 12 that drives the indicator 11; a light emitter 21; a photodetector 22 that detects light emitted from the light emitter 21 selectively when when the indicator 11 is at a reference position; and a control circuit 35 that executes a first mode to drive the indicator 11 continuously in one direction until the indicator 11 is detected while the light emitter 21 is emitting, and a second mode to alternately drive the indicator 11 and drive the light emitter 21 to emit to detect the indicator 11 at the reference position after the photodetector 22 detects light in the first mode and the indicator 11 has past the reference position.

A presentation case is arranged for receiving an electromechanical watch provided with a stepping motor for driving the watch hands. The presentation case includes a box with a support for receiving the watch, a system for detecting the position of the hands, and a device for resetting the watch connected to the hand position detection system. The resetting device resets the watch based on information received from the hand position detection system and a time reference when the watch is placed on the receiving support. The resetting device includes a driver for the stepping motor of the electromechanical watch, which is arranged inside the presentation case facing the stepping motor, when the watch is placed on the receiving support, and causes a rotation of the stepping motor by inductive coupling.

A presentation case is arranged for receiving an electromechanical watch provided with a stepping motor for driving the watch hands. The presentation case includes a box with a support for receiving the watch, a system for detecting the position of the hands, and a device for resetting the watch connected to the hand position detection system. The resetting device resets the watch based on information received from the hand position detection system and a time reference when the watch is placed on the receiving support. The resetting device includes a driver for the stepping motor of the electromechanical watch, which is arranged inside the presentation case facing the stepping motor, when the watch is placed on the receiving support, and causes a rotation of the stepping motor by inductive coupling.

An electronic timepiece can prevent overrunning when driving a motor at a high speed. The electronic timepiece has a controller that controls a driver to an on state or an off state according to the current value detected by the current detector; a polarity changer that determines driving one step of the motor ended and changes the polarity of the drive current when the on time or off time is detected to meet a specific condition; and a drive period adjuster that sets the terminal supplying the drive current to the coil to a first state if the remaining drive step count is greater than the remaining count evaluation number, and if the remaining drive step count is less than or equal to the remaining count evaluation number, sets the terminal to a second state in which the brake force applied to the rotor is greater than in the first state.

An electronic timepiece can prevent overrunning when driving a motor at a high speed. The electronic timepiece has a controller that controls a driver to an on state or an off state according to the current value detected by the current detector; a polarity changer that determines driving one step of the motor ended and changes the polarity of the drive current when the on time or off time is detected to meet a specific condition; and a drive period adjuster that sets the terminal supplying the drive current to the coil to a first state if the remaining drive step count is greater than the remaining count evaluation number, and if the remaining drive step count is less than or equal to the remaining count evaluation number, sets the terminal to a second state in which the brake force applied to the rotor is greater than in the first state.

An object of the invention is to prevent a positional deviation of a hand while reducing power consumption. A watch includes: a plurality of hands; a plurality of motors configured to drive or brake the plurality of hands, respectively; a pulse generation unit configured to supply, to the plurality of motors, a drive pulse for driving the hands and a lock pulse for braking the hands; and a control unit configured to control an operation mode including a normal hand movement mode and a tactile read mode, and the pulse generation unit supplies the lock pulse to the motors when the control unit shifts the operation mode to the tactile read mode.

An object of the invention is to prevent a positional deviation of a hand while reducing power consumption. A watch includes: a plurality of hands; a plurality of motors configured to drive or brake the plurality of hands, respectively; a pulse generation unit configured to supply, to the plurality of motors, a drive pulse for driving the hands and a lock pulse for braking the hands; and a control unit configured to control an operation mode including a normal hand movement mode and a tactile read mode, and the pulse generation unit supplies the lock pulse to the motors when the control unit shifts the operation mode to the tactile read mode.