Abstract: A timepiece with mobile decorations comprises: a roof disposed over a case body having a timepiece unit built therein; driving means to make said roof up and down while turning the same in response to a signal from the said timepiece unit; and mobile decorations disposed inside of the roof to operate and become visible from the outside while the roof is in a raised position.

Abstract: A power supply device for a hand with a luminescence element which is adapted to supply electric power to the luminescence element mounted on the hand.

Abstract: A miniaturized electromagnetic bell unit suitable for use with an alarm clock and the like is provided.The bell unit of the present invention is characterized in that it is miniaturized in such a way that a yoke to which a coil and a bell hammer are attached is incorporated within a bell and the bell is fixed to the yoke.

Abstract: A miniaturized electromagnetic bell unit suitable for use with an alarm clock and the like is provided.The bell unit of the present invention is characterized in that it is miniaturized in such a way that a yoke to which a coil and a bell hammer are attached is incorporated within a bell and the bell is fixed to the yoke.

Abstract: A control device for controlling the rotation of an intermittently driven wheel comprises a lock wheel affixed to the driven wheel for rotation therewith and having a smooth, non-toothed peripheral surface. A lock lever is turnably mounted adjacent the lock wheel and has a lever arm in continuous frictional contact with the lock wheel peripheral surface. A lever spring biases the lock lever so that the lever arm applies a predetermined frictional bias force to the lock wheel peripheral surface to prevent reverse rotation of the driven wheel. The lever arm is configured so as to increase the magnitude of the bias force applied to the lock wheel whenever the driven and lock wheels tend to rotate in the reverse direction.

Abstract: A rotary switch for a timepiece in which a rotatable setting plate made of non-conductive material has fixed thereon a plurality of upstanding projections of equal axial height on a major surface thereof resiliently supporting coaxially thereon on the tips of the projections an electrically conductive contact gear driven rotationally by an hour gear of a timepiece. The setting plate carries an electrically conductive contact plate thereon that has upstanding angularly spaced contacts of lesser axial height than the upstanding projections. These contacts are angularly spaced from each other differently than the angular spacing of the upstanding projections and are disposed among and alternately with the upstanding projections.