The Tissot Powermatic 80 Automatic caliber not only demonstrates ultimate precision but also has 80 hours of power reserve
The high-tech escapement has no regulator; the rate is set at the factory with a laser, making the manual rate adjustments normally required by a mechanical watch unnecessary.
I have heard that Tissot easily could send more than a million Powermatic 80 Automatic calibers to Contrôle Officiel Suisse des Chronomètres (COSC) to be certified
Watch insider