JPS5342861A - Electronic wristwatch - Google Patents

Electronic wristwatch

Info

Publication number
JPS5342861A
JPS5342861A JP11740776A JP11740776A JPS5342861A JP S5342861 A JPS5342861 A JP S5342861A JP 11740776 A JP11740776 A JP 11740776A JP 11740776 A JP11740776 A JP 11740776A JP S5342861 A JPS5342861 A JP S5342861A
Authority
JP
Japan
Prior art keywords
electronic wristwatch
employing
electro
low power
made possible
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
JP11740776A
Other languages
Japanese (ja)
Inventor
Sakio Okazaki
Kiichi Kawamura
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 JP11740776A priority Critical patent/JPS5342861A/en
Publication of JPS5342861A publication Critical patent/JPS5342861A/en
Pending 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
    • G04C3/14—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor
    • G04C3/143—Means to reduce power consumption by reducing pulse width or amplitude and related problems, e.g. detection of unwanted or missing step

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Semiconductor Integrated Circuits (AREA)
  • Control Of Stepping Motors (AREA)

Abstract

PURPOSE:Stable operation is made possible with low power by employing a bipolar rotor type step motor as an electro-mechanical converting mechanism and employing a driving system suited for this.
JP11740776A 1976-09-30 1976-09-30 Electronic wristwatch Pending JPS5342861A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11740776A JPS5342861A (en) 1976-09-30 1976-09-30 Electronic wristwatch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11740776A JPS5342861A (en) 1976-09-30 1976-09-30 Electronic wristwatch

Publications (1)

Publication Number Publication Date
JPS5342861A true JPS5342861A (en) 1978-04-18

Family

ID=14710873

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11740776A Pending JPS5342861A (en) 1976-09-30 1976-09-30 Electronic wristwatch

Country Status (1)

Country Link
JP (1) JPS5342861A (en)

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