Mosel Watch Runs Fast

I finished a build of the Mosel skeleton 8N24 kit, my first kit, and wore it around today. The watch runs noticeably fast, an offset of 6-8 minute over the course of an hour (set and matched against my phone). I’ve checked the alignment of the hands, the minute and hour line up at 12:00 like the instructions said still, so I don’t think it’s just an offset of the hour hand compared to the minute. What are some other things I could look into as to why this is happening?

Sounds like it’s magnetized. DWC has a video on their youtube channel. Look it up