Ingenieur
IWC’s anti-magnetic sport-engineering line — the original 1955 Ref. 666 introduced soft-iron Faraday-cage shielding for electrical-engineer wear. The 1976 Gérald Genta SL (Ref. 1832) gave the line its integrated-bracelet sport-luxury silhouette; the 2023 IW328901 generation re-issued the Genta design with the Caliber 32111 (Sellita SW300 base) and 10 bar water resistance.