This IWC Grande Complication reference 3770 is an extraordinary example of the brand’s technical mastery and one of the most ambitious wristwatches ever produced by IWC. Crafted in 18k rose gold, the watch combines a perpetual calendar, chronograph, moon phase and minute repeater within an elegant and wearable case. The anthracite grey dial provides exceptional depth and balance, presenting the numerous indications in a clear and harmonious layout. The perpetual calendar automatically adjusts for the date, day, month and leap year, while the moon phase display and chronograph add further complexity and refinement. Each function is integrated seamlessly, showcasing IWC’s engineering precision and the brand’s unique ability to merge technical brilliance with legibility and design coherence. The minute repeater mechanism, activated by the slide on the left side of the case, demonstrates the watch’s true haute horlogerie pedigree, chiming the hours, quarters and minutes with remarkable clarity. The hand finished movement is a testament to IWC’s craftsmanship and innovation during a period when mechanical watchmaking was reaching new creative heights. This example is preserved in good overall condition with only light and honest signs of wear on the case and clasp. It is offered without its original box but includes the official papers and the original book about the Grande Complication collection. Rarely seen on the market, the IWC Grande Complication reference 3770 in rose gold stands as a milestone in modern watchmaking and a centerpiece in any serious collection of high complications