Abstract: A time difference correction mechanism includes a cylinder index star wheel that includes teeth and is connected to an hour hand, a cylinder index gear that includes teeth and is connected to a minute hand, the cylinder index gear provided radially outward of the cylinder index star wheel on a same plane as the teeth, a cylinder index lever disposed in the cylinder index gear on a same plane as the cylinder index gear, and a cylinder index spring disposed in the cylinder index gear on the same plane as the cylinder index gear. The cylinder index lever is movable between an engaged position where a claw engages with at least one of the teeth and a disengaged position where the claw disengages with the at least one of the teeth . The cylinder index spring is configured to bias the cylinder index lever to the engaged position.

Abstract: A train wheel holding structure includes a main plate, a train wheel bridge, a pointer hand wheel or a pointe wheel supported by the main plate and the train wheel bridge, and a rotation hand movement train wheel or a fan-shaped/sector hand movement train wheel driving the pointer hand wheel, the train wheel bridge includes support holes corresponding to different two positions to support the pointer hand wheel, and between the two support holes of the train wheel bridge, a bush supporting the pointer hand wheel or the pointer hand wheel without looseness is provided in the support hole or the support hole by which the pointer hand wheel or the pointer hand wheel is supported and the bush is not provided in the support hole or the support hole by which the pointer hand wheel or the pointer hand wheel is not supported.

Abstract: An electronic watch including a movement, and the movement includes a movement main body, a plate manufactured by a ferromagnetic metal, and a hook having flexibility, and the plate includes an engagement part that protrudes from the rear surface of the plate and which is configured to accommodate one end part of the hook, and the one end part of the hook is configured to be accommodated by the engagement part by elastically deforming the hook, and the other end part of the hook is fixed to the movement main body.

Abstract: A time difference correction mechanism includes a cylinder index star wheel that includes teeth and is connected to an hour hand, a cylinder index gear that includes teeth and is connected to a minute hand, the cylinder index gear provided radially outward of the cylinder index star wheel on a same plane as the teeth, a cylinder index lever disposed in the cylinder index gear on a same plane as the cylinder index gear, and a cylinder index spring disposed in the cylinder index gear on the same plane as the cylinder index gear. The cylinder index lever is movable between an engaged position where a claw engages with at least one of the teeth and a disengaged position where the claw disengages with the at least one of the teeth . The cylinder index spring is configured to bias the cylinder index lever to the engaged position.

Abstract: An electronic time piece includes a dial, a sub dial provided to the dial, a control circuit that controls operation of a function hand disposed on the sub dial, a plurality of terminal portions, a wire that electrically connects the plurality of terminal portions with the control circuit, a push button that receives operation by a user and switches an electrical connection state between one terminal portion of the plurality of terminal portions and the control circuit. The one terminal portion of the plurality of terminal portions and other terminal portion are electrically connected to the control circuit by a common wire.

Abstract: A reciprocating display mechanism performing predetermined display by reciprocating a hand within a fixed area includes a hand capable of reciprocating within the fixed area, a hand driving wheel that drives the hand and includes a wheel, a transmission wheel that rotates the hand driving wheel by engaging with a tooth of the wheel, and a biasing member that biases the hand in one direction of the reciprocating, wherein the wheel includes an angle area corresponding to the fixed area and a region adjacent to the angle area, the angle area provided with teeth and a part of the region adjacent to the angle area provided with an idle region in which the transmission wheel idles, and the one direction biasing by the biasing member is a direction in which the tooth adjacent to the idle region engages with the transmission wheel when the idle region faces the transmission wheel.

Abstract: A variation reduction mechanism of a stop position of a pointer includes a return gear that is driven in conjunction with a time display mechanism, a slip torque spring (friction member) that contacts the return gear to apply a friction force to the return gear to be driven, and a return spring (return spring member) that applies, to the slip torque spring, a torque of the return gear in a direction (dashed line arrow—R direction) opposite to a normal hand movement direction (arrow R direction).

Abstract: To lower magnetic influence on a stepping motor covered by a magnetic shielding plate in an electronic timepiece and a movement, a movement of an electronic timepiece includes a stepping motor having a rotor, a stator, and a coil in which a conductive wire is wound around a coil winding core; and a magnetic shielding plate that covers at least a part of the stepping motor, wherein the magnetic shielding plate includes slits as magnetic flow changing portions that change magnetic flows which are directed toward the coil winding core to magnetic flows which are not directed toward the coil winding core, and the slits are formed in portions of the magnetic shielding plate, which correspond to extended lines from both end portions of the coil winding core, respectively, to intersect with the extended lines.

Abstract: An electronic watch including a movement, and the movement includes a movement main body, a plate manufactured by a ferromagnetic metal, and a hook having flexibility, and the plate includes an engagement part that protrudes from the rear surface of the plate and which is configured to accommodate one end part of the hook, and the one end part of the hook is configured to be accommodated by the engagement part by elastically deforming the hook, and the other end part of the hook is fixed to the movement main body.

Abstract: A watch includes a dial plate, a patch antenna, an upper side display component at a visible side than the dial plate, and a lower side display component at the rear surface side of the dial plate. The watch includes a first component layer on which at least a part of a wheel train mechanism for driving the upper side display component and a motor for driving the wheel train mechanism are disposed, and a second component layer that is positioned between the first component layer and the dial plate, and on which the lower side display component and a driving component of the lower side display component are disposed. The patch antenna is disposed on the second component layer so as to be planarly overlapped with a metal component disposed on the first component layer.

Abstract: Whether a bright state or a dark state is established is determined each time a motor is driven one step, based on a presence or absence of a passing of light through a detection hole disposed in a detection wheel that rotates associated with rotations of a hand wheel coupled with the motor. A switching position X is identified at which the dark state is switched to the bright state when the dark state is determined and thereafter the bright state is determined. A position one step after the identified switching position X is set to be a reference position X+1 of the hand wheel. The reference positions X+1 and X?1 can thereby be set after a driving mechanism is assembled.

Abstract: Whether a bright state or a dark state is established is determined each time a motor is driven one step, based on a presence or absence of a passing of light through a detection hole disposed in a detection wheel that rotates associated with rotations of a hand wheel coupled with the motor. A switching position X is identified at which the dark state is switched to the bright state when the dark state is determined and thereafter the bright state is determined. A position one step after the identified switching position X is set to be a reference position X+1 of the hand wheel. The reference positions X+1 and X?1 can thereby be set after a driving mechanism is assembled.

Abstract: There is provided an in-vehicle mount type navigation device in which a user can freely set a desired destination or via-places through which a route extending to the destination passes. A memory is provided with a destination/via-place table for storing data representing the destination and the via-places through which the route extending to the destination passes. A destination/registration place setting unit in a microprocessor stores data representing a place to be added in association with any specified one of a position between a via-place and another via-place or destination, and a position next to the destination into the destination/via-place table. On the basis of the data stored in the destination/via-place table, the guide route calculator of the microprocessor calculates a guide route which successively passes through the via-places and extends to the destination.