GB1377430A - Electric timepiece - Google Patents

Electric timepiece

Info

Publication number
GB1377430A
GB1377430A GB2312474A GB2312474A GB1377430A GB 1377430 A GB1377430 A GB 1377430A GB 2312474 A GB2312474 A GB 2312474A GB 2312474 A GB2312474 A GB 2312474A GB 1377430 A GB1377430 A GB 1377430A
Authority
GB
United Kingdom
Prior art keywords
clutch wheel
stem
electric timepiece
electronic
heading
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.)
Expired
Application number
GB2312474A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suwa Seikosha KK
Original Assignee
Suwa Seikosha KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Suwa Seikosha KK filed Critical Suwa Seikosha KK
Publication of GB1377430A publication Critical patent/GB1377430A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C13/00—Driving mechanisms for clocks by master-clocks
    • G04C13/08—Slave-clocks actuated intermittently
    • G04C13/10—Slave-clocks actuated intermittently by electromechanical step advancing mechanisms
    • G04C13/11—Slave-clocks actuated intermittently by electromechanical step advancing mechanisms with rotating armature

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
GB2312474A 1971-03-03 1972-02-11 Electric timepiece Expired GB1377430A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1078971 1971-03-03

Publications (1)

Publication Number Publication Date
GB1377430A true GB1377430A (en) 1974-12-18

Family

ID=11760093

Family Applications (2)

Application Number Title Priority Date Filing Date
GB652272A Expired GB1377429A (en) 1971-03-03 1972-02-11 Electric timepiece
GB2312474A Expired GB1377430A (en) 1971-03-03 1972-02-11 Electric timepiece

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB652272A Expired GB1377429A (en) 1971-03-03 1972-02-11 Electric timepiece

Country Status (4)

Country Link
US (1) US3744234A (ja)
CH (2) CH307572A4 (ja)
GB (2) GB1377429A (ja)
HK (2) HK43076A (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4022013A (en) * 1972-03-02 1977-05-10 Kabushiki Kaisha Suwa Seikosha Regulating device for electric timepieces
GB1454624A (en) * 1973-08-30 1976-11-03 Suwa Seikosha Kk Electric timepiece
JPS5248012A (en) * 1975-10-16 1977-04-16 Seiko Instr & Electronics Ltd Reversible miniature step motor
JPS6032828B2 (ja) * 1978-03-01 1985-07-30 セイコ−光機株式会社 時計の秒規正装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3432699A (en) * 1966-01-21 1969-03-11 Gen Electric Permanent magnetic synchronous motor and starting mechanism therefor
US3614492A (en) * 1970-06-10 1971-10-19 Controls Co Of America Bidirectional motor

Also Published As

Publication number Publication date
CH596597B5 (ja) 1978-03-15
HK43076A (en) 1976-07-16
HK42976A (en) 1976-07-16
US3744234A (en) 1973-07-10
GB1377429A (en) 1974-12-18
CH307572A4 (ja) 1977-02-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years