Automatic watches still require they be wound manually by hand. The automatic system only keeps the watch running. It won't start it from a virgin state. It normally takes around 30 - 40 winds by hand, depending on the brand and model, for it to reach full power. (If the watch is not fully wound, putting it on a winder only raises the watch to the power reserve remaining in the movement.)
If a watch has not been fully wound prior to wearing, this might explain the inaccurate time keeping you may be experiencing.
Please try rotating the crown clockwise, ~40 times, and leaving the watch stationary for at least 24 hours. If the timekeeping is inaccurate within the first 2 hours, please let us know you have followed the advice in this article submit a request to support to arrange a return for inspection for you.