To enable thinning and small-sizing of a watch, by constituting one or both overhang copper foil pattern with a copper foil pattern and the circuit conduction part of electric elements provided in a circuit block and pressing with a pushing plate.

On a ground plate 105, a battery terminal 102 is arranged and is positioned with a screw pin 107. A circuit board 103 mounted by IC, quartz and other electric elements is positioned by another screw part and its exterior is arranged apart from the exterior of the battery terminal 102. The overhang part 103a of copper foil pattern of the circuit board 103 is arranged on the battery terminal 102 and fixed with a screw 108 by way of an insulation plate 109 for insulating from the screw pin 107 and a circuit pushing plate 106. In this manner, conduction of the overhang part of the circuit block and the battery terminal 102 is attained by the tightening pressure of the screw 108 and so small-sizing and thinning become possible and a highly reliable conduction structure is attained.