Electronic wristwatches
AssigneeCitizen Watch Co., Ltd.
InventorKotaro Takahashi
Life of this patent
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Abstract
This invention relates to a battery powered electronic wristwatch having a time changing device accommodated in a recess in the base plate of the watch which device operatively is connected to the adjustment shaft manipulatable externally of the watch casing to alter the position of the hands of the watch. The time changing device includes a pivotable setting lever which cooperates with the adjustment shaft and a spring for controlling the movement of the setting lever. A fixed body portion of the spring has a portion of its periphery shaped so as to conform to a peripheral portion of a base recess for accommodating the watch battery.
Claims6
In a watch movement construction for an electronic wristwatch powered by a battery and having time indicating hands, the improvement comprising:
- a base plate having a radial bore, and a recess formed on one side of said base plate to accommodate said battery;
- a time adjustment shaft movable in said radial bore of said base plate to predetermined locations for correcting said time indicating hands;
- a setting lever pivotally mounted on said one side of said base plate and cooperating with said time adjustment shaft;
- and
- a spring mounted on said one side of said base plate, said spring comprising a resilient arm for urging the setting lever in a given direction and a fixed body part having a peripheral edge portion conforming to a portion of the periphery of said recess.
Dependencies are inferred from the claim text.