Panerai Radiomir 1940 3 Days Automatic Acciaio 45mm PAM00572

Officine Panerai P.4000 calibre, the first automatic movement with an off-centre micro-rotor completely developed. This design means that the rotor is mounted off-centre: a sophisticated technical solution enabling the thickness of the movement to be substantially reduced. The small oscillating weight is inserted within the movement rather than superimposed upon it , a thickness of only 3.95 mm.