Super accurate Automatic

I have had my Automatic Grand Classic for over a year now. It looks beautiful with 2 tone rose gold and matches my wedding ring, but most of all it could go up to weeks and be accurate within a minute without needing readjustment (sometimes I let it go longer without readjusting) I wear it all the time except in shower and think it an automatic marvel. One weakness would be the date setting, it tends to lag a day behind after less than a week of usage.