Fusing delicate designs with everyday function, the Langematik Perpetual is one of the most sought-after interpretations among A. Lange & Söhne’s perpetual calendar variety. The most apparent characteristic of this yellow gold ref. 310.021 is its large date windows at 12. Easily recognisable as one of the first iterations to offer this display, it became a recurring feature included in many of the German watchmakers’ later models. Following this attribute, the traditional perpetual calendar dial layout consists of three smaller subsidiary counters: a moon phase indication, a 24-hours indication, a leap year indication, along with a patented zero-reset mechanism that assures fast and precise time-setting.

The combination of these intricate complications has resulted in a beautifully balanced cream dial framed with an elegant yellow gold case. Accompanied with its proof of origin, the present A. Lange & Söhne Langematik Perpetual ref. 310.021 is well preserved with minimal signs of use and wear.