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.)
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 KKfiledCriticalSeiko Epson Corp
Priority to JP15674075ApriorityCriticalpatent/JPS5280863A/en
Publication of JPS5280863ApublicationCriticalpatent/JPS5280863A/en
PURPOSE: To perform clear display at dark time with less power consumption by letting the light emitting diode at the end of a hand emit light when a switch is connected by an optical diode that responds to darkness and brightness.
COPYRIGHT: (C)1977,JPO&Japio
JP15674075A1975-12-271975-12-27Optical display mechanism of watch
PendingJPS5280863A
(en)