After having my movement in watch for about a week now, I've noticed that it gains almost 10 seconds per day! And I can't pull the stem out and turn the datewheel. Only the minute hand.. Honestly, it looks like the Asian2824 I replaced
This is a professional use only movement… Definitely not for a shade tree mechanic… Only buy this if you are qualified to diagnose repair and adjust a chronographs like this otherwise leave it to the pros