WTS: IWC Ingenieur 3506 Full Kit | WatchUSeek Watch Forums
IWC INGENIEUR REF 3506 STEEL International Watch Co., Schaffhausen, " Ingenieur Automatic'', case No. 2388290, Ref. 3506. Made circa 1988. Fine and very rare, tonneau-shaped, center-seconds, self- winding, water-resistant, antimagnetic, stainless steel ...