IWC Schaffhausen Ingenieur Perpetual Calendar 41 Watch IW344904

The Ingenieur Perpetual Calendar 41 is the first titanium model to combine Gérald Genta’s visionary Ingenieur design with Kurt Klaus’s crown-controlled perpetual calendar. The watch features a 41-millimetre case and an integrated bracelet made of Grade 5 titanium, a matte grey dial, and black hands and appliqués filled with luminescent material. Seamlessly integrated into the case via a middle-link attachment, the bracelet ensures exceptional wearing comfort.

Thanks to titanium’s significantly lower weight compared to stainless steel, the watch feels particularly light and comfortable on the wrist. The characteristic bezel is secured to the case ring with five functional screws. The case, bezel, crown guard and bracelet links are sandblasted with subtly polished edges.

The moon phase display at 6 o’clock shows a single moon disc set against a finely detailed background. For excellent legibility, the hands and applied indices are filled with Super-LumiNova®. The perpetual calendar displays the date, day, month and moon phase on the dial.