Mido Caliber 80 Chronometer Si

Caliber 80 Chronometer Si is an automatic movement manufactured by Mido based on the ETA C07.111. It features a silicon balance spring for enhanced magnetic resistance and improved precision. The movement delivers 80 hours of power reserve and carries COSC chronometer certification. Part of the broader Powermatic 80 family, it remains in production and is used across Mido's sport and dress collections.