A lange sohne datograph perpetual

The A. Lange & Söhne Datograph Perpetual is a flyback chronograph with perpetual calendar, reference 410.025, merging German haute horlogerie with rare technical complications.

About this subject

The A. Lange & Söhne Datograph Perpetual, released in 2016 as part of the 1815 collection, represents the pinnacle of watchmaking engineering from the Saxon manufacture. Its hand-wound movement, caliber L952.2, integrates a flyback chronograph (allowing reset without stopping) and a perpetual calendar with retrograde date display. The date, shown in a large window at 12 o'clock, advances via an instantaneous jump mechanism, automatically correcting for 30- and 31-day months and leap years. The watch also displays day of week, month, moon phase (accurate to 122.6 years), and 50-hour power reserve. The case, in white or pink gold, measures 41 mm and contrasts with a silver opaline dial and dark subdials. Each piece is hand-assembled in Glashütte, Germany, with typical finishes: bridges with graining, polished bevels, and engraved balance cock. The Datograph Perpetual is considered one of the most desired complications among collectors, rivaling Patek Philippe and Vacheron Constantin in the perpetual chronograph segment. Limited production and movement complexity justify prices exceeding €100,000 on the secondary market. Notably, the dial design maintains Lange’s characteristic symmetry, integrating the retrograde date into the chronograph without visual clutter.

Frequently Asked Questions

What is the caliber of the A. Lange & Söhne Datograph Perpetual?

It uses the hand-wound caliber L952.2, with 50-hour power reserve, flyback chronograph, and retrograde perpetual calendar.

Is the Datograph Perpetual limited?

There is no official limited series, but production is small and controlled, making the watch rare on the market.

How does the retrograde date work on this watch?

The date is displayed on an arc from 0 to 31 on the main dial. At month's end, a hand jumps instantly to day 1 of the next month, automatically adjusting for shorter months.