Seiko 7L22

The Seiko caliber 7L22 (7L22A) is a Japanese-made quartz movement featuring a chronograph with retrograde minutes. As a kinetic movement, it generates power through a rotor-driven capacitor system rather than a conventional battery. The retrograde minutes display distinguishes this chronograph from standard configurations, advancing in a sweep before snapping back to zero. This caliber appeared in Seiko's DressKX collection.