JPS549663A - Electronic wristwatch - Google Patents

Electronic wristwatch

Info

Publication number
JPS549663A
JPS549663A JP7473277A JP7473277A JPS549663A JP S549663 A JPS549663 A JP S549663A JP 7473277 A JP7473277 A JP 7473277A JP 7473277 A JP7473277 A JP 7473277A JP S549663 A JPS549663 A JP S549663A
Authority
JP
Japan
Prior art keywords
electronic wristwatch
driving pulses
driving
watch
polarity
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.)
Pending
Application number
JP7473277A
Other languages
Japanese (ja)
Inventor
Kiichi Kawamura
Sakio Okazaki
Minoru Hosokawa
Hiroshi Ishii
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP7473277A priority Critical patent/JPS549663A/en
Publication of JPS549663A publication Critical patent/JPS549663A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electromechanical Clocks (AREA)
  • Control Of Stepping Motors (AREA)

Abstract

PURPOSE:To provide a watch of high reliability and low power consumption which operates stably by detecting the polarity of driving pulses from the driving current waveforms of a step motor and supplying correcting driving pulses.
JP7473277A 1977-06-23 1977-06-23 Electronic wristwatch Pending JPS549663A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7473277A JPS549663A (en) 1977-06-23 1977-06-23 Electronic wristwatch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7473277A JPS549663A (en) 1977-06-23 1977-06-23 Electronic wristwatch

Publications (1)

Publication Number Publication Date
JPS549663A true JPS549663A (en) 1979-01-24

Family

ID=13555686

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7473277A Pending JPS549663A (en) 1977-06-23 1977-06-23 Electronic wristwatch

Country Status (1)

Country Link
JP (1) JPS549663A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160091376A (en) 2014-11-07 2016-08-02 히타치 긴조쿠 가부시키가이샤 Electrode wire for electrical discharge machining and manufacturing method for same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160091376A (en) 2014-11-07 2016-08-02 히타치 긴조쿠 가부시키가이샤 Electrode wire for electrical discharge machining and manufacturing method for same

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