I’ve posted an entry at this magnificent community sharing my two Seiko 7M22-6A50. They are branded as Automatic Generating System that was later rebranded to Kinetic.
My problem started with the capacitor. The old ones didn’t last long, like 2 days max in one watch, hours in the other. So I bought the new lithium capacitor from cousinsuk that should last 180 days after full charge.
Problem, how to charge this?
Start reading about this and made a few tests. The Braun toothbrush charger worked but not very efficient. Phillips Imageo base charger didn’t work.
Start searching for alternatives to this. First the Seiko oficial chargers but they are rare and cost around 300$.
So, I stumble in one forum where someone bought a coil and assemble its own charger. The kit was a 3.3v 500mA wireless transmitter. I bought one but didn’t work. So I bought 12v 200mA max and 5v 600mA max and give it a try.
The 12v didn’t work but the 5v was a success.
My next experiment will by measuring how long it will take to make a full charge without burn the movement.
![Image](http://uploads.tapatalk-cdn.com/20201013/1f12196031d21479c6b32dd2ce0d898b.jpg)
The transmitter
![Image](http://uploads.tapatalk-cdn.com/20201013/67dbc27f52bebb3ccea571f87f7b5eae.jpg)
Female DC power adapter
![Image](http://uploads.tapatalk-cdn.com/20201013/7a4389dbbfa46e38326103dd289dd169.jpg)
And a normal AC-DC wall adapter with variable output to allow some adjustments.
This can burn the movement but I’ve 7 around here to play. I’m saying this because the watch gets real warm when charging.
Thanks