IWC Big Ingenieur 45.5mm IW500501

The IWC Big Ingenieur Ref. IW500501 is a bold and technical statement in a 45.5 mm stainless-steel case. It features a textured black dial with luminous hands and indices, a power-reserve indicator at 3 o’clock, with red warning when low, and a date window at 6 o’clock. Inside is the in-house automatic Calibre 51113 with the Pellaton winding system, delivering an impressive 7-day (168-hour) power reserve. The watch comes with a black alligator strap, is water-resistant to 120 m (10 ATM), and has a sapphire crystal.