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AR15.COM
9/11/2014 3:25:02 PM EDT


So I am sitting here working on a Citizen Watch Eco Drive
I was replacing the crystal, and crystal case gasket.

To do this you have to pull the movement, and dial out and everything out
So I took the stem and crown out to remove it from the case
Then pulled the capacitor out (battery out)

And the thing is still running....

http://www.youtube.com/watch?v=K3g8Qg_OpqA&feature=youtu.be


The face is solar cell, (Eco Drive) and stores enough energy to keep the watch running even with out a capacitor, as long as it is still getting direct light.
Ok, so I thought it was kind of cool, so I filmed it, and made post about it.




9/11/2014 3:28:50 PM EDT
[#1]
The battery is just for storage of power to run it when there is no light or not enough light. With the battery removed it will stop when you remove the light source. That's how solar works.