Provided is a movement enabling easily providing an indicator position detection mechanism in a movement enabling changing the locations of an indicator by changing the configuration of a wheel train. The movement includes an indicator wheel to which an indicator is attached; a motor that drives the indicator wheel; a detection wheel train used to detect a position of the indicator; and a main plate to which the indicator wheel, the motor, and the detection wheel train are disposed. The main plate is configured to enable selectively disposing the indicator wheel to a first position or a second position that is different from the first position. The detection wheel train is disposed to the same position whether the indicator wheel is disposed to the first position or the second position.

An electronic timepiece includes a communication unit receiving identification information for identifying a radio station from the radio station, a storage unit storing a database having, as a record, the identification information and time difference information indicating a time difference associated with the identification information, a timekeeping unit in which a set time difference being a time difference with respect to a reference time is set, a first time difference correction unit correcting the set time difference to the time difference information associated with the identification information received by the communication unit, an operation unit accepting user operation, a second time difference correction unit correcting the set time difference according to the operation, and an update processing unit updating the database by changing the time difference information to the set time difference corrected by the second time difference correction unit.

A portable electronic apparatus includes a case, a solar cell disposed in the case, a GPS antenna as an antenna section disposed in the case, including a base as a nonconductive member and a conductive body disposed on a surface of the nonconductive member, and adapted to receive a positioning satellite signal, and a circuit board disposed in the case, and electrically connected to the solar cell and the antenna section, and the antenna section overlaps the solar cell in a planar view viewed from a normal direction of light receiving surfaces of the solar cell.

A portable electronic apparatus includes a case, a solar cell disposed in the case, a GPS antenna as an antenna section disposed in the case, including a base as a nonconductive member and a conductive body disposed on a surface of the nonconductive member, and adapted to receive a positioning satellite signal, and a circuit board disposed in the case, and electrically connected to the solar cell and the antenna section, and the antenna section overlaps the solar cell in a planar view viewed from a normal direction of light receiving surfaces of the solar cell.

A solar cell covered with a transparent plate through a predetermined gap includes a flexible power generating layer which photoelectrically converts light incident thereon through the transparent plate, a resin layer covering a light receiving surface of the power generating layer, and an adhesion preventing layer covering the surface of the resin layer and facing the transparent plate through the gap. The adhesion preventing layer is made of an inorganic material and has a surface roughness Sz of 1 nm or more and 500 nm or less. Thus, the outermost surface of the solar cell is constituted by the adhesion preventing layer, so that no tack mark occurs even when partial contact occurs between the solar cell and the transparent plate which face each other through the gap. As a result, it is possible to prevent deterioration in appearance due to the tack mark.

A solar cell covered with a transparent plate through a predetermined gap includes a flexible power generating layer which photoelectrically converts light incident thereon through the transparent plate, a resin layer covering a light receiving surface of the power generating layer, and an adhesion preventing layer covering the surface of the resin layer and facing the transparent plate through the gap. The adhesion preventing layer is made of an inorganic material and has a surface roughness Sz of 1 nm or more and 500 nm or less. Thus, the outermost surface of the solar cell is constituted by the adhesion preventing layer, so that no tack mark occurs even when partial contact occurs between the solar cell and the transparent plate which face each other through the gap. As a result, it is possible to prevent deterioration in appearance due to the tack mark.

An electronic system device comprises a power generation device generating a power supply voltage, a substrate bias generation circuit connected to the power generation device, a memory circuit, a monitor circuit, and a capacitor connected to the substrate bias generation circuit via a switch. The substrate bias generation circuit generates a substrate bias voltage from the power supply voltage and supplies charges based on the substrate bias voltage to the capacitor while the switch is ON-state. While the switch is OFF-state, the capacitor stores the accumulated charges based on the substrate bias voltage. While the switch is ON-state, the substrate bias generation circuit adds based on the substrate bias voltage to charge that was held, and states the back bias voltage. The substrate bias generation circuit supplies the back bias voltage to memory circuit.

An electronic system device comprises a power generation device generating a power supply voltage, a substrate bias generation circuit connected to the power generation device, a memory circuit, a monitor circuit, and a capacitor connected to the substrate bias generation circuit via a switch. The substrate bias generation circuit generates a substrate bias voltage from the power supply voltage and supplies charges based on the substrate bias voltage to the capacitor while the switch is ON-state. While the switch is OFF-state, the capacitor stores the accumulated charges based on the substrate bias voltage. While the switch is ON-state, the substrate bias generation circuit adds based on the substrate bias voltage to charge that was held, and states the back bias voltage. The substrate bias generation circuit supplies the back bias voltage to memory circuit.

A recharging device for an electronic or electromechanical watch equipped, on the one hand, with a device for the storage of electrical energy for powering electronic components of the watch and, on the other hand, with an auxiliary source of electrical energy adapted to power the device for the storage of electrical energy for recharging thereof. The device includes a casket provided with a support for receiving the watch. The device further includes at least one source of energy configured to supply energy to the auxiliary source of electrical energy, when the watch is placed on the receiving support, so that the auxiliary source of electrical energy converts the received energy into electrical energy and delivers a charge for maintaining a predetermined level of power supply voltage to the device for the storage of electrical energy.

A recharging device for an electronic or electromechanical watch equipped, on the one hand, with a device for the storage of electrical energy for powering electronic components of the watch and, on the other hand, with an auxiliary source of electrical energy adapted to power the device for the storage of electrical energy for recharging thereof. The device includes a casket provided with a support for receiving the watch. The device further includes at least one source of energy configured to supply energy to the auxiliary source of electrical energy, when the watch is placed on the receiving support, so that the auxiliary source of electrical energy converts the received energy into electrical energy and delivers a charge for maintaining a predetermined level of power supply voltage to the device for the storage of electrical energy.