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![IWC] Ingenieur 3506 SL Automatic, the iconic Jumbo's smaller brother (34mm) : r/Watches](https://preview.redd.it/2qrzt1lvr1851.jpg?auto=webp&s=ab3a4455e3e0ffd007838c3506c44010a6417189 "IWC] Ingenieur 3506 SL Automatic, the iconic Jumbo's smaller brother (34mm) : r/Watches")
IWC] Ingenieur 3506 SL Automatic, the iconic Jumbo's smaller brother (34mm) : r/Watches
IWC Ingenieur Automatic IW3506 | Montro
IWC | 'JUMBO' INGENIEUR SL, REF 1832 STAINLESS STEEL BRACELET WATCH WITH DATE CIRCA 1978 | Watches Weekly | London | 2020 | Sotheby's
IWC, REF. 3505, INGENIEUR SL AUTOMATIC, STEEL | Only Online Auction | Geneve, December 9. 2020
1977 IWC Ingenieur SL 1832 'Jumbo' Box, Heavy Paperwork and IWC Service — WBLDN
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