IWC Schaffhausen Stainless Steel Ingenieur Automatic Perpetual Calendar Watch 41.6mm

IWC’s legacy of the perpetual calendar dates back to the early '80s, when head watchmaker Kurt Klaus developed a wristwatch capable of accurately tracking the irregular days and leap years of the Gregorian calendar. The Ingenieur Perpetual Calendar is the first stainless steel model to combine this innovation with Gérald Genta’s visionary Ingenieur design, featuring a sleek, functional screwed bezel and a characteristic grid pattern on the dial. The moonphase is another horological marvel, crafted with such precision that it will deviate from the moon’s rhythm by just one day every 577.5 years.