I bought my first Swiss watch about five weeks ago, a TAG Formula 1 Caliber 16. I wear it daily and place it in an upright position at night when I go to bed. At first it averaged gaining 7-8 seconds over 24 hours, which I thought was great. That was almost within C.O.S.C. standards. Now it seems to have settled and gains about 3.5 seconds over 24 hours, which I think is REALLY awesome! I hope it keeps improving. I bought another TAG last week, a quartz Aquaracer but that's another story. I am interested in hearing about the accuracy of some of you other guys' TAGs.