The A. Lange & Söhne Double Split 404.035 Platinum Flyback Chronograph in platinum stands as one of the most mechanically sophisticated chronographs ever created, showcasing groundbreaking double rattrapante (double split) chronograph innovation alongside the unmistakable refinement of Saxon watchmaking. As the world’s first chronograph capable of measuring split times for both seconds and minutes, this reference represents a true milestone in haute horlogerie. For those seeking an exceptional timepiece, the A. Lange & Söhne Double Split 404.035 Platinum Flyback Chronograph is an outstanding choice. The watch features a striking black dial with beautifully contrasting solid silver subdials, delivering exceptional legibility and symmetry. A flyback chronograph display, double split (rattrapante) mechanism, and a power reserve indicator at 12 o’clock create a balanced yet highly technical layout, while applied markers and finely blued hands highlight Lange’s renowned attention to detail. At its core is the manual-winding manufacture Calibre L001.1, visible through the sapphire caseback and celebrated for its exceptional finishing, including a hand-engraved balance cock, gold chatons, and German silver bridges. The movement’s intricate architecture reveals the extraordinary engineering required to power both the flyback chronograph and the double split complication with flawless precision. Encased in a commanding 43mm platinum case and paired with a black alligator leather strap, the Double Split 404.035 offers a refined yet powerful wrist presence. This example is presented as a highly complete collector’s set, including the original box, papers, and original A. Lange & Söhne white tag, further enhancing its desirability and collectability.