Introduced at Baselworld in 1999, the A. Lange & Söhne Datograph marked a turning point in modern horology and remains one of the most celebrated chronographs ever created. Cased in 39mm platinum and fitted with a rich black dial, it immediately set new benchmarks for both design and technical innovation. The flyback function allowed the chronograph to be reset and restarted instantly with a single push of the button, underscoring the ingenuity of Lange’s engineering. Revered collectors and connoisseurs, including the legendary watchmaker Philippe Dufour, quickly hailed the Datograph as one of their all-time favorite timepieces.

While the first generation was later produced in other case metals and dial variations, the original platinum and black dial combination is the version that captured the imagination of the watch world when it debuted. In 2012, the Datograph evolved into its second generation with two references: the platinum ref. 405.035 and the pink gold ref. 405.031, like the present example. Key updates included a larger 41mm case, baton indexes in place of Roman numerals, and the welcome addition of a power reserve indicator at 6 o’clock, marked “AUF” and “AB.”

At its heart beats the in-house calibre L951.6, offering 60 hours of power reserve, a free-sprung balance with overcoil, and the kind of lavish hand-finishing that defines A. Lange & Söhne. Visible through the sapphire caseback, every bridge, lever, and wheel is a testament to Saxon watchmaking artistry. With demand for Lange’s finest creations stronger than ever, the Datograph has secured its place as one of the most important and collectible modern chronographs.