Sharing my ex private collection.. IWC Ingenieur ref 322801.. Not limited edition, but only was produced for one year I believe.. The difference with other Ingenieur models was the sapphire exhibition case instead a solid caseback with antimagnetic soft-iron inner cover.. The IWC cal 80111 is 7.3mm thick (that's right!) with Pellaton winding system and is considered by some as one of the most robust automatic movement avalable..
