Long time lurker, first time poster. I have a 6138-0030 Kakume where the guy who serviced my watch decided to repaint my second sweep hand without permission :o Anyhow, I hear that putting an aftermarket one on is a terrible idea bc it doesn’t fit properly, but I’ve also heard that once you...

Just started modding a couple of Seiko 5s, one of which works fine until I fitted the second hand. It still works ok whilst wearing it but stops about 3 hours into the night after being worn throughout the day. Any suggestions as to why would be very much appreciated.

Hello, I am a little stumped at the moment. I'm experiencing a strange problem with one of these early quartz movements, but don't seem to be able to quite pinpoint what the problem is. I figured it was worth gathering opinions before taking it completely apart (again!) The symptom is...