Minerva 13.21

Caliber 13.21 is a manual-winding Minerva chronograph evolved from the 13-20, featuring a pusher positioned at 37° from the crown rather than the typical 30°. The movement integrates a small seconds display within a monopusher chronograph construction, containing 239 parts within a 29.5mm diameter. Its distinctive pusher angle provides the most recognizable visual distinction from standard chronograph layouts. Production status is discontinued.