CH637260B - Piece d'horlogerie electronique de petites dimensions. - Google Patents

Piece d'horlogerie electronique de petites dimensions.

Info

Publication number
CH637260B
CH637260B CH779278A CH779278A CH637260B CH 637260 B CH637260 B CH 637260B CH 779278 A CH779278 A CH 779278A CH 779278 A CH779278 A CH 779278A CH 637260 B CH637260 B CH 637260B
Authority
CH
Switzerland
Prior art keywords
detection signal
frequency detection
mode
selection circuit
higher frequency
Prior art date
Application number
CH779278A
Other languages
English (en)
Other versions
CH637260GA3 (fr
Inventor
Yoshinori Futami
Tomio Ota
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 of CH637260B publication Critical patent/CH637260B/fr
Application filed by Suwa Seikosha Kk filed Critical Suwa Seikosha Kk
Publication of CH637260GA3 publication Critical patent/CH637260GA3/fr

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/12—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/002—Electrical measuring and testing apparatus
    • G04D7/003—Electrical measuring and testing apparatus for electric or electronic clocks

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Electromechanical Clocks (AREA)
  • Burglar Alarm Systems (AREA)
CH779278A 1977-07-19 1978-07-19 Piece d'horlogerie electronique de petites dimensions. CH637260B (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8628877A JPS5421779A (en) 1977-07-19 1977-07-19 Miniature electronic watch

Publications (2)

Publication Number Publication Date
CH637260B true CH637260B (fr)
CH637260GA3 CH637260GA3 (fr) 1983-07-29

Family

ID=13882638

Family Applications (1)

Application Number Title Priority Date Filing Date
CH779278A CH637260B (fr) 1977-07-19 1978-07-19 Piece d'horlogerie electronique de petites dimensions.

Country Status (3)

Country Link
US (1) US4266290A (fr)
JP (1) JPS5421779A (fr)
CH (1) CH637260B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0651849B2 (ja) * 1988-02-09 1994-07-06 信越化学工業株式会社 プライマー組成物
JP3594021B2 (ja) * 2002-03-27 2004-11-24 セイコーエプソン株式会社 電子時計
JP2011185831A (ja) * 2010-03-10 2011-09-22 Citizen Holdings Co Ltd 電子時計

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1349023A (en) * 1971-07-16 1974-03-27 Omega Brandt & Freres Sa Louis Adjustable frequency pulse generator
BE802129A (fr) * 1973-07-10 1973-11-05 Suisse Horlogerie Dispositif de mise a l'heure pour montre electronique
US3945194A (en) * 1973-12-15 1976-03-23 Itt Industries, Inc. Electronic quartz clock with integrated circuits
GB1488914A (en) * 1973-12-19 1977-10-19 Citizen Watch Co Ltd Electronic timepiece
JPS5544354B2 (fr) * 1974-01-23 1980-11-12
JPS50107973A (fr) * 1974-01-30 1975-08-25
US4044543A (en) * 1976-12-28 1977-08-30 Kabushiki Kaisha Daini Seikosha Switching mechanism of an electronic wrist watch

Also Published As

Publication number Publication date
CH637260GA3 (fr) 1983-07-29
JPS5421779A (en) 1979-02-19
US4266290A (en) 1981-05-05

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