DISCLAIMER: Yes I first used the search engine but I really didn't feel like reading over 100 threads to see if I would find my answer there. And I like to do conversation with fellow WUS members so...
A few weeks ago, I was wearing my Seiko SKX007 and noticed that the watch was gaining ridiculous amount of time in a short period, like 20 minutes or more every hour or two. Now, I'm far to be certain that the movement is magnetized but the symptoms pointed me in that direction according to a few posts I read on that subject and before I send it out to a watchmaker, I wanted to know if there was an easy way to demagnetize a watch movement so I can try it and see if it works. Now, this is a watch I wear, maybe, once every month and I cannot recall getting close to any strong magnetic field with my watch on the wrist. The watch is stored in a 36 watches watch case with all of my other watches and this is the only one that started to go crazy. I have never opened that watch to regulate it since it was keeping very accurate time since day one.
With my limited knowledge, I tried to eliminate a few hypothesis. It's so fast that I'm 99% certain that this as nothing to do with regulating the movement, I could be wrong though. The watch was not knocked or dropped on the floor AFAIK (yeah I have two daughters but the usually never touch my watches) . I ask myself if a broken component in the movement could do that , but then if something was broken, the watch would probably not work at all One thing I should point out is that, it's also harder to have the movement to go. What I mean is that I feel that I have to shake it a lot more than my other Seiko for it to start and go for good. If I just do a quick shake like I usually do, the second hand starts and then stops a few steps further
Anyhow, I know you can buy a demagnetizer but I'm almost certain that I already read a post in which the guy was explaining how to do an homemade demagnetizer. Any help is welcome and feel free to give your diagnostic if you feel i'm on the wrong track.
Thanks in advance, and here is a photo of the watch even if irrelevant, I know we all like photos!