A core model watch from A. Lange & Söhne is hard enough to find in the wild, but a Grande Lange 1 that is 1 of 25 is even more of a rarity. Especially when it has an eye-popping mother-of-pearl dial. To understand why this piece is special, it is important to remember that when A. Lange & Söhne was resurrected in 1994, the Lange 1 was among the first four watches that were introduced to announce its return. And even now, over 30 years later, its basic formula remains the same: an asymmetrical display, separate hours and minutes and running seconds, power reserve, and the iconic Lange Big Date, inspired by the clock above the Semperoper stage in Dresden.