发明名称 AUTOMATIC DATE FEED MECHANISM OF WATCHES
摘要 PURPOSE:To eliminate the need for manual date correction by discriminating odd and even months with a cam, running a motor through direct or indirect closing of contact mechanism and rapidly feeding the month end of even months by one day.
申请公布号 JPS5433068(A) 申请公布日期 1979.03.10
申请号 JP19770098830 申请日期 1977.08.18
申请人 SEIKO INSTR & ELECTRONICS 发明人 FUJIHIRA HAJIME
分类号 G04C3/14;G04C3/00;G04C9/00;G04C17/00 主分类号 G04C3/14
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