In 2009 A. Lange & Söhne shocked the (watch) world with the introduction of the Zeitwerk. The concept was based on the famous five-minute clock at the Semper Opera House in Dresden, Germany. A. Lange & Söhne took the design and scaled its details down to wristwatch size and paired it with a unique dial layout that displays time in a digital format like military time.

Perhaps the most astonishing thing about the model is that it is powered by a mechanical movement. It includes a large number of numerical discs that jump quickly from one to another to display time, all of which require a substantial amount of power that needs to be built up and released all at once. This is quite a volatile action, where stopping the disc at precisely the correct position is as important as moving it at the right time. While various brands have made jump-hour watches, the Zeitwerk brought them to another level.
Nearly thirteen years after the debut of its base model, A. Lange & Söhne is releasing a second-generation model, though it is not the first time that the brand has experimented with the Zeitwerk. As the brand amassed more experience with the watch over the years, different versions emerged, integrating other complications like repeaters and a date function.

At first glance, there seem to be few updates to the original, but below the surface, this generation of the Zeitwerk is equipped with an entirely new movement. The caliber L043.6 offers a power res...