Hi, so I recently got a seiko 5 snk809 and it was working fine, I then decided to regulate it as it was losing about 1 minute a day. After I regulated it it was working fine then stopped so I shook it to wind it up and then it started working. After 5 minutes it stopped again so I wound it up and it would work but then stop after a couple of minutes. I checked to see if the watch was being winded and it was, so the watch had power but just wouldn't move, I dont know why this is, the watch has power but will only run for a minute or two when I shake it, this hasn't happened before to this watch, so if anyone could help that would be great.
Thanks