发明名称 |
Electronic timepiece with calendar device |
摘要 |
An electronic timepiece has a calendar advancement device resistant to external shock and capable of achieving date correction in a short time. A date dial advancement transducer (51) is activated in response to a date dial drive signal generated by a 24-hour switch. A date advancement mechanism (a date gear train) (52) employs a Geneva wheel for stabilizing the date dial (70). A bounding restraint lever is regulated using an eccentric cam or the like provided coaxially with the Geneva wheel.
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申请公布号 |
US6477114(B1) |
申请公布日期 |
2002.11.05 |
申请号 |
US19990380155 |
申请日期 |
1999.08.26 |
申请人 |
CITIZEN WATCH CO., LTD. |
发明人 |
MUTOH TAKEO;KITAJIMA YASUO;HIGUCHI HARUHIKO;KOIKE HIROYUKI |
分类号 |
G04C17/00;(IPC1-7):G04B19/24 |
主分类号 |
G04C17/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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