Title:
クロノグラフ時計
Document Type and Number:
Japanese Patent JP5490519
Kind Code:
B2
Abstract:
Provided is a chronograph timepiece to perform a system reset by an easy-to-understand operation for users, including a crown, an operating unit that at least starts and resets a time period measurement, a time hand drive unit that keeps time of day based on a clock signal for electrically driving a time hand so as to indicate the timed time of day, a chronograph hand drive unit that measures a time period based on a chronograph signal in response to the start for electrically driving a chronograph hand so as to indicate a measured time period and to reset the time period measurement in response to the reset directed by the operating unit, and a control unit that resets the time hand drive unit in response to a reset directed by the crown and resets the chronograph hand drive unit in response to the reset directed by the operating unit.
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Inventors:
Kenji Ogasawara
Akira Takakura
Saburo Manaka
Kyoji Motomura
Takanori Hasegawa
Kosuke Yamamoto
Kazumi Sakumoto
Hiroshi Shimizu
Kazuo Kato
Eriko Noguchi
Tomohiro Ibashi
Akira Takakura
Saburo Manaka
Kyoji Motomura
Takanori Hasegawa
Kosuke Yamamoto
Kazumi Sakumoto
Hiroshi Shimizu
Kazuo Kato
Eriko Noguchi
Tomohiro Ibashi
Application Number:
JP2009293023A
Publication Date:
May 14, 2014
Filing Date:
December 24, 2009
Export Citation:
Assignee:
Seiko Instruments Inc.
International Classes:
G04F8/02
Domestic Patent References:
| JP2000147167A | ||||
| JP200046967A | ||||
| JP2008241329A |
Attorney, Agent or Firm:
Kentaro Kuhara
Noriaki Uchino
Nobuyuki Kimura
Noriaki Uchino
Nobuyuki Kimura