I had already adjusted the rate of the watch but I had heard moving the mobile stud carrier as a novice was a stupid idea so I decided to go for it. I was able to bring down a beat error of .8-1.2ms to .3-.6ms. With that it required readjusting the rate to get the watch to run within +/-4 sec/day which I was happy with. The app I used is called Watch Accuracy Meter which is a free Android app which uses you phones mic as a Timegrapher. Even if you don't want to play around with different studs on the watch movement it's very fun to to see how accurate you watch is. Hope you enjoy!