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JPS5516237A - Electronic watch - Google Patents

Electronic watch

Info

Publication number
JPS5516237A
JPS5516237A JP8870878A JP8870878A JPS5516237A JP S5516237 A JPS5516237 A JP S5516237A JP 8870878 A JP8870878 A JP 8870878A JP 8870878 A JP8870878 A JP 8870878A JP S5516237 A JPS5516237 A JP S5516237A
Authority
JP
Japan
Prior art keywords
battery
capacity
terminal
voltage
circuit
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
JP8870878A
Other languages
Japanese (ja)
Inventor
Shojiro Komaki
Toshinao Arai
Yoshihiko Hirayama
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 Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP8870878A priority Critical patent/JPS5516237A/en
Publication of JPS5516237A publication Critical patent/JPS5516237A/en
Pending legal-status Critical Current

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  • Electromechanical Clocks (AREA)

Abstract

PURPOSE: To display the capacity of battery on changing the movement step of the second hand and to extend the life of battery by detecting a voltage of the battery which is proportional to the capacity.
CONSTITUTION: A terminal voltage of the lithium battery 3 is detected by the battery voltage detecting circuit 4. The detecting circuit controls the timing circuit 5, changes the movement step of the second hand of the display feature 6 to show the capacity of battery. When light is irradiated to the solar battery 1 and an electromotive force is produced, the lithium battery is charged through the charge control circuit 2, the capacity of battery increases, the terminal voltage of the battery 3 is raised. An increase of the capacity can be detected by the display feature 6 through the detecting circuit 4 and timing circuit 5. By the switch 7, time can be displayed when the terminal is connected to VDD, the capacity of battery can be done when the terminal is connected to VSS.
COPYRIGHT: (C)1980,JPO&Japio
JP8870878A 1978-07-20 1978-07-20 Electronic watch Pending JPS5516237A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8870878A JPS5516237A (en) 1978-07-20 1978-07-20 Electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8870878A JPS5516237A (en) 1978-07-20 1978-07-20 Electronic watch

Publications (1)

Publication Number Publication Date
JPS5516237A true JPS5516237A (en) 1980-02-04

Family

ID=13950383

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8870878A Pending JPS5516237A (en) 1978-07-20 1978-07-20 Electronic watch

Country Status (1)

Country Link
JP (1) JPS5516237A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60146888U (en) * 1984-03-12 1985-09-30 リズム時計工業株式会社 Clock with battery life display function
JPH01152295A (en) * 1987-12-10 1989-06-14 Mitsubishi Motors Corp Acidic tin and tin alloy plating bath
JPH02141595A (en) * 1988-11-24 1990-05-30 Hitachi Cable Ltd Sn or Sn alloy plating solution and plating method
JP4481497B2 (en) * 1998-08-31 2010-06-16 シチズンホールディングス株式会社 Electronic watch with power generation function

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60146888U (en) * 1984-03-12 1985-09-30 リズム時計工業株式会社 Clock with battery life display function
JPH01152295A (en) * 1987-12-10 1989-06-14 Mitsubishi Motors Corp Acidic tin and tin alloy plating bath
JPH02141595A (en) * 1988-11-24 1990-05-30 Hitachi Cable Ltd Sn or Sn alloy plating solution and plating method
JP4481497B2 (en) * 1998-08-31 2010-06-16 シチズンホールディングス株式会社 Electronic watch with power generation function

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