IWC Vintage Jumbo Ingenieur | SL 1832 in Stahl Box und Zertifikat Serv ...
IWC Ingenieur Jumbo | Chrono24.com
IWC - Reference 1832, self-winding, anti-magnetic, centre-seconds, date; “Ingenieur SL”, so-called “Jumbo”; stainless steel | Important Modern & Vintage Timepieces | Hong Kong, May 10,2020