FR1447917A - Improvements to small electronic maintenance motors of an oscillating balance and application to a very flat portable watch - Google Patents

Improvements to small electronic maintenance motors of an oscillating balance and application to a very flat portable watch

Info

Publication number
FR1447917A
FR1447917A FR951939A FR951939A FR1447917A FR 1447917 A FR1447917 A FR 1447917A FR 951939 A FR951939 A FR 951939A FR 951939 A FR951939 A FR 951939A FR 1447917 A FR1447917 A FR 1447917A
Authority
FR
France
Prior art keywords
application
small electronic
portable watch
electronic maintenance
oscillating balance
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
FR951939A
Other languages
French (fr)
Inventor
Serge Held
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 filed Critical
Priority to FR951939A priority Critical patent/FR1447917A/en
Application granted granted Critical
Publication of FR1447917A publication Critical patent/FR1447917A/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
    • G04C3/04—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
    • G04C3/066—Constructional details, e.g. disposition of coils
FR951939A 1963-10-28 1963-10-28 Improvements to small electronic maintenance motors of an oscillating balance and application to a very flat portable watch Expired FR1447917A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR951939A FR1447917A (en) 1963-10-28 1963-10-28 Improvements to small electronic maintenance motors of an oscillating balance and application to a very flat portable watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR951939A FR1447917A (en) 1963-10-28 1963-10-28 Improvements to small electronic maintenance motors of an oscillating balance and application to a very flat portable watch

Publications (1)

Publication Number Publication Date
FR1447917A true FR1447917A (en) 1966-08-05

Family

ID=8815277

Family Applications (1)

Application Number Title Priority Date Filing Date
FR951939A Expired FR1447917A (en) 1963-10-28 1963-10-28 Improvements to small electronic maintenance motors of an oscillating balance and application to a very flat portable watch

Country Status (1)

Country Link
FR (1) FR1447917A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3465511A (en) * 1967-08-07 1969-09-09 Serge Simon Held Electronically sustained clockwork mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3465511A (en) * 1967-08-07 1969-09-09 Serge Simon Held Electronically sustained clockwork mechanism

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