JPS5454077A - Calendar collecting device for analog electronic watch - Google Patents
Calendar collecting device for analog electronic watchInfo
- Publication number
- JPS5454077A JPS5454077A JP12030277A JP12030277A JPS5454077A JP S5454077 A JPS5454077 A JP S5454077A JP 12030277 A JP12030277 A JP 12030277A JP 12030277 A JP12030277 A JP 12030277A JP S5454077 A JPS5454077 A JP S5454077A
- Authority
- JP
- Japan
- Prior art keywords
- day
- pulses
- date
- changed
- month
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C17/00—Indicating the time optically by electric means
- G04C17/005—Indicating the time optically by electric means by discs
- G04C17/0058—Indicating the time optically by electric means by discs with date indication
- G04C17/0066—Indicating the time optically by electric means by discs with date indication electromagnetically driven, e.g. intermittently
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
- G04C3/14—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromechanical Clocks (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12030277A JPS5454077A (en) | 1977-10-06 | 1977-10-06 | Calendar collecting device for analog electronic watch |
GB7839132A GB2005876B (en) | 1977-10-06 | 1978-10-03 | Analogue type electronic timepieces |
US05/948,783 US4271494A (en) | 1977-10-06 | 1978-10-05 | Correcting device for calendar in an analog type electronic watch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12030277A JPS5454077A (en) | 1977-10-06 | 1977-10-06 | Calendar collecting device for analog electronic watch |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5454077A true JPS5454077A (en) | 1979-04-27 |
Family
ID=14782864
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12030277A Pending JPS5454077A (en) | 1977-10-06 | 1977-10-06 | Calendar collecting device for analog electronic watch |
Country Status (3)
Country | Link |
---|---|
US (1) | US4271494A (ja) |
JP (1) | JPS5454077A (ja) |
GB (1) | GB2005876B (ja) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6013153B2 (ja) * | 1976-12-03 | 1985-04-05 | シチズン時計株式会社 | カレンダ−付電子時計 |
JPS618396Y2 (ja) * | 1980-06-06 | 1986-03-14 | ||
EP0063771B1 (en) * | 1981-04-22 | 1986-02-05 | Olympus Optical Co., Ltd. | Leap year compensation system |
CH648723GA3 (ja) * | 1982-09-10 | 1985-04-15 | ||
DE3767691D1 (de) * | 1986-12-03 | 1991-02-28 | Ebauchesfabrik Eta Ag | Schaltung zur formung des von einem kontakt produzierten signals. |
CH672222B5 (ja) * | 1987-11-11 | 1990-05-15 | Rolex Montres | |
CN1132079C (zh) * | 1997-04-25 | 2003-12-24 | 精工电子有限公司 | 电子表 |
US6088302A (en) * | 1997-04-25 | 2000-07-11 | Seiko Instruments Inc. | Electronic timepiece |
JP3165070B2 (ja) * | 1997-04-25 | 2001-05-14 | セイコーインスツルメンツ株式会社 | カレンダ付電子時計 |
US6582118B1 (en) * | 1997-04-25 | 2003-06-24 | Seiko Instruments Inc. | Electronic timepiece having transmission wheel rotational position detecting apparatus |
JP2002071840A (ja) * | 2000-08-29 | 2002-03-12 | Seiko Instruments Inc | 電子機器 |
JP2005214836A (ja) * | 2004-01-30 | 2005-08-11 | Seiko Instruments Inc | 2つの日車を含むカレンダ機構付き時計 |
DE602005005878T2 (de) * | 2004-02-19 | 2009-05-20 | Seiko Epson Corp. | Elektronische Uhr mit Kalendersfunktion und Verfahren zum Ansteuern dieser Uhr |
JP2009276223A (ja) * | 2008-05-15 | 2009-11-26 | Seiko Instruments Inc | ステッピングモータ駆動回路及びアナログ電子時計 |
GB2482360B (en) * | 2010-11-08 | 2012-06-06 | Richard George Hoptroff | Device for irregularly driving unidirectional motors for enhanced data display |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1673676B1 (de) * | 1967-05-03 | 1972-05-31 | Walter Dr Nissen | Datumsanzeigevorrichtung |
JPS5336343B2 (ja) * | 1972-08-03 | 1978-10-02 | ||
JPS5137265A (ja) * | 1974-09-25 | 1976-03-29 | Citizen Watch Co Ltd | |
CH608324B (fr) * | 1976-05-03 | Tavannes Ebauches Sa | Mouvement de montre a calendrier comportant un organe indicateur de date. |
-
1977
- 1977-10-06 JP JP12030277A patent/JPS5454077A/ja active Pending
-
1978
- 1978-10-03 GB GB7839132A patent/GB2005876B/en not_active Expired
- 1978-10-05 US US05/948,783 patent/US4271494A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB2005876B (en) | 1982-03-03 |
US4271494A (en) | 1981-06-02 |
GB2005876A (en) | 1979-04-25 |
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