Did you know that it is perfectly normal for chronograph watches for the second hand to be not aligned?
Watch this video on how to fix it, and some instruction:
If you have a quartz chronograph and let’s say it has a 30-minute subdial and for some reason the hand is stuck at 29 when it should be at 30, most quartz chronographs have the same/a similar resetting method:
First, pull the crown out to the farthest position, typically where it lets you set the time. Then, hold down both chronograph buttons for a few seconds. Next, let go and if you push chronograph button one, it should advance the chronograph second hand once. Push that button until the chronograph second hand lines up at 12. If you hold down both chronograph buttons again for a few seconds, then push button one again, it should advance the chronograph minute hand once. This then lets you “unstuck” the chronograph hand from 29 to 30. Finally, simply push the crown back, and voila you’re done.
This seems to be the standard approach for Swiss quartz chrono movements like ETAs. I have found that this works with my Wenger Aerograph Chrono, my former TAG s/el Chrono, and a search of the web shows that it seems to work for nearly all Swiss quartz chronos.