The definitive answer is, that there is no definitive answerHi guys!
Quick question on Casio solar watches that is surely recurrent but never seems to get a definitive answer.
And before that, Gentle Lunar.I just know that Tough Solar is a step up from Casio's old Gentle Solar watch line.
How's the lume?I, had a solar sundial, worked most days~
Sent from Capt Kirk's Communicator
Sorry for resurrecting this old post.It would last as long as the watch in most of cases providing that the charging circuit also works, but its capacity will decrease over the time. At some point your watch might be unreliable.
Fixed the pic links^^^This answer is DEFINITIVE, not vague:
Casio solar cells will last the life of the watch, 20 years, if charged periodically.
The original Tough Solar G-Shock is the Raysman, released in 1998 and all still going strong on original batteries
![]()
.
Guardian Angels DW-9300GA
![]()
Raysman DW-9350 MSJ Middle Sea Race
![]()
Galapagos DW-9350DJ titanium
![]()
![]()
That makes me feel very happy. Maybe the water resistance is stronger than normal too.Fixed the pic links^^^
Some of these are now 22 years old, on original battery, still holding full charge.
Still have never changed a solar watch battery.