CH528770A - Electric timepiece - Google Patents

Electric timepiece

Info

Publication number
CH528770A
CH528770A CH1103669A CH1103669A CH528770A CH 528770 A CH528770 A CH 528770A CH 1103669 A CH1103669 A CH 1103669A CH 1103669 A CH1103669 A CH 1103669A CH 528770 A CH528770 A CH 528770A
Authority
CH
Switzerland
Prior art keywords
electric timepiece
timepiece
electric
Prior art date
Application number
CH1103669A
Other languages
French (fr)
Inventor
Aizawa Susumu
Nakamura Koichi
Tsuruishi Yuki
Oguchi Kikuo
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 CH528770A publication Critical patent/CH528770A/en

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
    • G04C3/04—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance
    • G04C3/06—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance
    • G04C3/065—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance the balance controlling gear-train by means of static switches, e.g. transistor circuits
    • G04C3/067—Driving circuits with distinct detecting and driving coils
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C11/00—Synchronisation of independently-driven clocks
    • G04C11/08—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction
    • G04C11/081—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction using an electro-magnet
CH1103669A 1968-07-19 1969-07-18 Electric timepiece CH528770A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP43050764A JPS4943989B1 (en) 1968-07-19 1968-07-19

Publications (1)

Publication Number Publication Date
CH528770A true CH528770A (en) 1972-06-15

Family

ID=12867885

Family Applications (2)

Application Number Title Priority Date Filing Date
CH1103669A CH528770A (en) 1968-07-19 1969-07-18 Electric timepiece
CH1103669D CH1103669A4 (en) 1968-07-19 1969-07-18

Family Applications After (1)

Application Number Title Priority Date Filing Date
CH1103669D CH1103669A4 (en) 1968-07-19 1969-07-18

Country Status (3)

Country Link
US (1) US3648453A (en)
JP (1) JPS4943989B1 (en)
CH (2) CH528770A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH1222869A4 (en) * 1969-08-12 1972-09-15
CH560925A (en) * 1971-06-29 1975-04-15
JPS5319944B2 (en) * 1971-09-25 1978-06-23
FR2202318B1 (en) * 1972-10-11 1976-10-29 Hatot Leon Ets
CH1691872A4 (en) * 1972-11-21 1977-05-31
CH1810272A4 (en) * 1972-12-13 1977-02-28
JPS49119679A (en) * 1973-03-16 1974-11-15
CH581346B5 (en) * 1973-07-19 1976-10-29 Ebauches Sa
US4010602A (en) * 1974-02-25 1977-03-08 Timex Corporation High frequency reed time governor for a timepiece
US3892066A (en) * 1974-02-27 1975-07-01 Microna Inc Synchronized watch movement
EP3130966B1 (en) * 2015-08-11 2018-08-01 ETA SA Manufacture Horlogère Suisse Mechanical clockwork provided with a motion feedback system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3451210A (en) * 1966-07-01 1969-06-24 Benrus Corp System for maintaining oscillations in an electric timing mechanism having an oscillatory element
GB1205753A (en) * 1966-09-09 1970-09-16 Smiths Industries Ltd Horological instruments incorporating electrical oscillation generators

Also Published As

Publication number Publication date
JPS4943989B1 (en) 1974-11-26
CH1103669A4 (en) 1972-06-15
US3648453A (en) 1972-03-14

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Legal Events

Date Code Title Description
PL Patent ceased