At A. Lange & Söhne, the year 2013 marks the debut of a timepiece of stunning complexity and perfection: the GRAND COMPLICATION.

With a Grande Sonnerie, a perpetual calendar, and a split-seconds chronograph with flying seconds, it features a density of complications that is uncommon even in the category of grand complications. Its elaborate movement represents the supreme challenge for a watchmaker, because the complex mechanisms must not only be individually adjusted but also harmonised to achieve impeccable interaction.