Usually I don't care how accurate the watch is but this one is COSC certified so I've been keeping an eye on it. It's been measuring at -9s a day when I log the time everyday and I thought it would improve with wear. Today I looked down at my watch and it was 2 minutes behind and it's only been 5 days since I've received it. So I set it on my Timegrapher and it's running -11s. I've tried fully winding the crown but the rate doesn't change.
So I've heard that you need to wear the watch for a few weeks for it to "break in" but hasn't it already been tested and regulated to be accurate?
Did I receive a dud or do I need to wait for it to break in a bit. What are your experiences with your COSC watches?
Note* I also have a Sinn 556i with the same movement but not chronometer grade and the rotor has a nice weight to it but the Formex rotor is skeletonized and looks super thin - it looks like it can barely make a full revolution without me really trying to get it to turn. The sinn will rotate like a top if I "shake" the watch. Was really hoping this would be the micro brand I would be truly impressed with..