But i like to say, this for me one of the most beautifull and interesting movements, it is the flates of his art (2,45mm without date), the FP 70 (2,4mm) has a decentral rotor, the Lassale calibers had flying wheels but the never worked more than one week, the Piaget P12 had a microrotor and is also 2,4mm like the FP 70. In my opinon, I think it is fair to say, the PP240 is a copy of the Piaget movement.