CH624540GA3 - - Google Patents

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Publication number
CH624540GA3
CH624540GA3 CH1206378A CH1206378A CH624540GA3 CH 624540G A3 CH624540G A3 CH 624540GA3 CH 1206378 A CH1206378 A CH 1206378A CH 1206378 A CH1206378 A CH 1206378A CH 624540G A3 CH624540G A3 CH 624540GA3
Authority
CH
Switzerland
Prior art keywords
rate
watch
measuring
stepping motor
division factor
Prior art date
Application number
CH1206378A
Other versions
CH624540B (en
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
Publication of CH624540B publication Critical patent/CH624540B/en
Application filed filed Critical
Priority to CH1206378A priority Critical patent/CH624540B/en
Priority to GB7936415A priority patent/GB2036386B/en
Priority to DE2943301A priority patent/DE2943301C2/en
Priority to FR7927128A priority patent/FR2442467A1/en
Priority to JP15083379A priority patent/JPS5582088A/en
Priority to US06/097,531 priority patent/US4292836A/en
Publication of CH624540GA3 publication Critical patent/CH624540GA3/xx

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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
    • G04D7/002—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)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

An electronic measuring apparatus for measuring the rate of an analog-display electronic watch which comprises a quartz oscillator, a frequency divider with an adjustable division factor, a stepping motor and a circuit which, when the stem of the watch is pulled, produces a measuring signal emitted by the stray field of the coil of the stepping motor and comprising trains of pulses whose period and content are respectively representative of the frequency of the oscillator and the division factor. The measuring apparatus comprises a pick-up means for detecting said measuring signal, circuits for computing the rate of the watch and means for displaying said rate.
CH1206378A 1978-11-24 1978-11-24 DEVICE FOR MEASURING THE MARKET OF AN ELECTRONIC WATCH PART. CH624540B (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CH1206378A CH624540B (en) 1978-11-24 1978-11-24 DEVICE FOR MEASURING THE MARKET OF AN ELECTRONIC WATCH PART.
GB7936415A GB2036386B (en) 1978-11-24 1979-10-19 Apparatus for measuring rate of electronic timepiece
DE2943301A DE2943301C2 (en) 1978-11-24 1979-10-26 Measuring arrangement for the rate of an electronic timepiece
FR7927128A FR2442467A1 (en) 1978-11-24 1979-11-02 ELECTRONIC TIMEPIECE HAVING ANALOGUE DISPLAY HAVING AN ADJUSTABLE DIVISION RATE DIVIDER
JP15083379A JPS5582088A (en) 1978-11-24 1979-11-22 Device for measuring step of analog indication electronic time device
US06/097,531 US4292836A (en) 1978-11-24 1979-11-26 Apparatus for measuring the rate of an analog-display electronic timepiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1206378A CH624540B (en) 1978-11-24 1978-11-24 DEVICE FOR MEASURING THE MARKET OF AN ELECTRONIC WATCH PART.

Publications (2)

Publication Number Publication Date
CH624540B CH624540B (en)
CH624540GA3 true CH624540GA3 (en) 1981-08-14

Family

ID=4379511

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1206378A CH624540B (en) 1978-11-24 1978-11-24 DEVICE FOR MEASURING THE MARKET OF AN ELECTRONIC WATCH PART.

Country Status (6)

Country Link
US (1) US4292836A (en)
JP (1) JPS5582088A (en)
CH (1) CH624540B (en)
DE (1) DE2943301C2 (en)
FR (1) FR2442467A1 (en)
GB (1) GB2036386B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4400093A (en) * 1981-07-06 1983-08-23 Omega Louis Brandt & Frere S.A. Method for inspecting the running of a timepiece and timepiece adapted for such method
GB2253286A (en) * 1991-02-27 1992-09-02 Tina Mary Douglas Testing apparatus for timing devices

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1352082A (en) * 1971-02-10 1974-05-15 Suwa Seikosha Kk Methods and apparatus for measuring the accuracy of electric timepieces
GB1488914A (en) * 1973-12-19 1977-10-19 Citizen Watch Co Ltd Electronic timepiece
US3892124A (en) * 1974-06-14 1975-07-01 Time Computer Wristwatch analyzer
JPS6024434B2 (en) * 1976-07-07 1985-06-12 セイコーエプソン株式会社 electronic clock
JPS53140071A (en) * 1977-05-13 1978-12-06 Seiko Epson Corp Analog type electronic watch
US4142360A (en) * 1977-07-07 1979-03-06 Kabushiki Kaisha Suwa Seikosha Electronic timepiece

Also Published As

Publication number Publication date
FR2442467A1 (en) 1980-06-20
FR2442467B1 (en) 1984-05-04
JPS6154190B2 (en) 1986-11-21
JPS5582088A (en) 1980-06-20
DE2943301C2 (en) 1982-05-19
US4292836A (en) 1981-10-06
GB2036386B (en) 1983-01-19
GB2036386A (en) 1980-06-25
DE2943301A1 (en) 1980-05-29
CH624540B (en)

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