A. Lange & Söhne releases limited edition Datograph Perpetual

German watchmaker A. Lange & Söhne has released an exclusive 50-piece limited edition of the Datograph Perpetual to celebrate the 20th anniversary of the model. This new version features a case and bracelet crafted from 950 platinum and a black dial adorned with hand-set baguette-cut diamonds.

The timepiece utilizes the manually wound L952.1 manufacture calibre, which consists of 556 individual components. The movement combines a column-wheel chronograph with a flyback function and a perpetual calendar. The perpetual calendar is designed to display the date, day of the week, and month correctly for decades, accounting for leap years until the year 2100. Additionally, the moon phase mechanism is highly precise, deviating from the synodic lunar cycle by only one day every 122.6 years.