The 3521 is part of the Ingenieur family, which could be seen as IWC's answer to the Milgauss, albeit with a different focus. Both timepieces were designed to protect their movements from high-intensity magnetic fields. While "Milgauss" refers to a measurement of one thousand gauss, IWC chose the name "Ingenieur" to emphasize its target audience. This watch is specifically crafted for engineers, whether they were working at the pioneering CERN, in hydroelectric plants, or, considering the era, in nuclear power facilities. It makes for an ideal choice for both professionals and watch enthusiasts alike.
Case: Show sign of wear with approximate size 34mm in diameter without crown along with serial number engraved on case back
Dial: Excellent Condition black dial along w/ matching hands
Bracelet: IWC steel bracelet w/ 20 links and folding clasp
