The Chronograph That Changed Everything Few timepieces have had such a profound impact on modern watchmaking as the A. Lange & Söhne Datograph. Introduced in 1999, it redefined what a mechanical chronograph could be, combining extraordinary engineering with uncompromising hand-finishing. Today, it is widely regarded as one of the finest chronographs ever created—a benchmark against which virtually every high-end chronograph is measured. Crafted in 950 platinum, the 39 mm case possesses a quiet confidence, allowing the beautifully balanced black dial to command attention. The signature outsize date, inspired by the historic clock of Dresden's Semper Opera House, harmoniously complements the flyback chronograph displays, creating a dial celebrated for its exceptional legibility and perfect proportions. Every detail reflects the unmistakable design language of Glashütte, where precision and elegance exist in complete harmony. The true masterpiece, however, lies beneath the sapphire caseback. The manually wound Calibre L951.1 is considered one of the most beautiful movements ever produced. Comprising 405 individual components, it features a traditional column-wheel flyback chronograph, hand-engraved balance cock, untreated German silver bridges, gold chatons secured by blued screws, and an extraordinary level of hand-finishing that rewards every glance. It is a movement admired not only for its technical sophistication but also for its remarkable architectural beauty. More than two decades after its debut, the Datograph remains an icon of contemporary haute horlogerie. Revered by collectors, watchmakers, and industry experts alike, it represents the very pinnacle of German watchmaking—where mechanical innovation, artistic craftsmanship, and timeless design come together in perfect balance. It is not simply one of the greatest chronographs ever made; it is one of the defining masterpieces of modern horology. Year: approx. 2010