All Automatic Watches will gain/lose time
All automatic watch will gain or lose time when they are new or not worn on the wrist all the time.
The watch will “settle down” to a more reasonable accuracy level after being worn for a couple of months. If your watch loses or gains a few seconds per day, you can take it off at night and:
– Lay the watch flat with the dial uppermost (To gain a few seconds if it is slow).
– Lay the watch vertically with the winding-button downwards. (To lose a few seconds if it is fast).
– Lay the watch vertically with the winding-button uppermost. (To lose more seconds if it is too fast).