发明名称 ELECTRONIC WATCH
摘要 <p>PURPOSE:To provide a watch in which the hour-striking does not take place at unnecessary times by providing a switching means composed of a photosensitive element and controlling the hour-striking announcement function when the quantity of light is below a fixed quantity.</p>
申请公布号 JPS53109673(A) 申请公布日期 1978.09.25
申请号 JP19770023883 申请日期 1977.03.07
申请人 CITIZEN WATCH CO LTD;RHYTHM WATCH CO 发明人 NOMURA YASUSHI;KOMATSU YUUZOU;MOROKAWA SHIGERU
分类号 G04B21/10;G04C21/12;G04G13/00 主分类号 G04B21/10
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