This IWC GST Perpetual Calendar Chronograph showcases the brand's pioneering spirit in both material and complication. A revolutionary timepiece from the final year of the celebrated GST series, this 2004 model effortlessly merges haute horlogerie with the practical, modern aesthetic of a true tool watch. Crafted from lightweight and durable titanium, its robust "strongbox" case offers a powerful presence without the heft of traditional precious metals. The black dial is a masterclass in complexity and legibility, with the chronograph sub-dials and perpetual calendar windows thoughtfully arranged for both function and balance. At its heart lies a powerful automatic movement, the IWC Caliber 79261. This legendary perpetual calendar complication, a signature design by Kurt Klaus, automatically tracks the day, date, month, year, and moon phase, with a mechanical memory that accounts for every leap year until 2100. Best of all, this high-level complication can be adjusted entirely via the single crown, offering an unparalleled level of user-friendliness. This Swiss-made icon represents a unique blend of sophisticated engineering and utilitarian design. As a neo-vintage classic, it offers a compelling value proposition for the discerning collector who seeks a timepiece that is as technically impressive as it is visually striking. Model Number: IW3756-03 Movement Type & Caliber: Automatic, Caliber 79261 Case Diameter: 43mm Serial Number: 37562947088 Made in Switzerland, c.2004 Includes original box and paperwork Comes with Foundwell 1-Year Warranty Style Number: FWW1775 Shipping Notice: Due to the high value of this product, purchases may take up to 2 business days to process and ship. Return Policy: Because this watch is a vintage, one-of-a-kind piece, all purchases are final sale and excluded from any promotions.