IWC Portugieser Grand Complication IW377602 18k 5N Case

This IWC Portugieser Grand Complication ref. IW377602 stands at the absolute summit of what the Portugieser collection represents, bringing together nearly every revered traditional high complication into a single, breathtaking wristwatch. Far beyond a standard Portugieser with added functions, this piece embodies IWC’s most ambitious expression of mechanical watchmaking, uniting a chronograph, a full perpetual calendar with four-digit year, an astronomical moonphase, and a minute repeater capable of chiming hours, quarters, and minutes on demand. Comprising hundreds of meticulously finished components, it distills centuries of horological innovation into one commanding form. These complications are housed within a substantial 18k 5N gold case, paired with a clean silver-plated dial that remains remarkably legible despite its complexity. Measuring 45mm, the watch wears with purpose and presence, perfectly suited to the magnitude of what it contains. Powered by IWC’s automatic Caliber 79091 with a 44-hour power reserve and paired with a refined leather strap, this Grand Complication is not designed as an everyday watch, but as a powerful statement—an enduring testament to what elite mechanical watchmaking can still achieve, and a rare opportunity for the collector who understands its significance.