The IWC Ingenieur Automatic 40 ref. IW328901 is a 40 mm stainless-steel sports watch that combines the architectural character of the Ingenieur with a restrained black-dial configuration. Its textured dial, five functional bezel screws and integrated stainless-steel bracelet create a distinctive technical appearance inspired by Gérald Genta’s Ingenieur SL design of the 1970s. The case measures 10.7 mm thick and offers 10 bar of water resistance, giving the watch practical everyday capability alongside its integrated-bracelet construction.
Inside is the IWC-manufactured calibre 32111, an automatic movement operating at 4 Hz and delivering an extended 120-hour power reserve. A soft-iron inner case protects the movement from the effects of magnetic fields, preserving one of the technical principles historically associated with the Ingenieur collection.
Reference IW328901 is particularly notable within the Ingenieur Automatic 40 family for its monochromatic black-and-steel presentation. Compared with the silver-plated and aqua dial versions, the black dial gives greater visual emphasis to the geometry and finishing of the case and bracelet. It combines the design heritage of the Ingenieur SL with modern proportions, magnetic protection and a five-day power reserve in one of the collection’s most understated contemporary configurations.
