solar battery replacement of a Seiko watch

A Step by step demo of replacing the rechargable battery in a Seiko Solar powered watch. These batteries last 10-15 years but the replacement was going to cost me 50% of the watch value so I wanted to find and share a way of replacing them yourself. As the back had been on for so long it was totally stuck and my normal watch tools would not move this one, first watch they have failed on. However if you are lucky enough to be able to get it off please skip to 7:15. The most difficult part was actually putting the screw that holds the battery tab back in the most difficult, just needs patience, the rest is actually easy with a few cheap tools.

[@jamesmeap9093]

Thanks for the video. I've never opened my solar watch, it's always helpful to see it done before attempting. I will say though, for anyone attempting to work on any quartz watch, be careful not to touch the copper coil. Over time, oils from your fingers can cause premature corrosion to the coil, necessitating a replacement. I'm not saying you touched it, but it may not be clear to a first time do-it-yourselfer. Great camera work too!

[@DeviBudhan]

Thanks for the demo! One store quoted me $70 to change the battery. After seeing this video,I think I'll do it myself if I can open it!

[@dodeedo]

Please see my other video on getting the back off. When I did mine the usual tools didn’t work. Hence the need for big nut

[@akorejepade1261]

Where do you get the replacement battery from?

[@dodeedo]

I got it from eBay. Found other on line battery specialists as well. Seems like there are two versions. My watch needed the one with the tab

[@garryh69]

Is this a joke?

[@dodeedo]

No, just a solution to real problem, if you can get the back off with normal tools then great otherwise this is my solution to replacing the battery after 15 years