公开(公告)号：EP1026559B1

公开(公告)日：2010-11-24

申请号：EP99940585.5

申请日：1999-08-31

申请人： Citizen Holdings Co., Ltd.

发明人： KAMIYAMA, Yasuo Citizen Watch Co., Ltd. ,  MURAKAMI, Tomomi Citizen Watch Co., Ltd. ,  MAFUNE, Masao Citizen Watch Co., Ltd. ,  NAGATA, Yoichi Citizen Watch Co., Ltd.

IPC分类号： G04C3/00 ,  G04C10/04 ,  G04G19/00

CPC分类号： G04C10/04 ,  G04G19/12

摘要： An electronic watch displays an indication of whether generating means is generating power or not and displays the generating state of the generating means and the storage state of storage means. Detecting means (140) detects the generating state of the generating means (110). Judging means (150) judges whether or not the generating means (110) is generating based on the detection signal from the detecting means (140) and instructs display means (130) to display the generating state. The generating state is detected from the potential difference between terminals. Storage measuring means (242) for measuring the electricity stored in the storage means (120) may be provided. The display of the generating state is, if the watch is an analog type, displayed by modulated movement of a hand, and if a digital type, displayed by mark indication. If the watch is in a non-generating state or if the stored electricity is small, the hand is stopped to lower the power consumption.