A. Lange & Söhne unveils a glow-in-the-dark tourbillon at Watches and Wonders 2026

A. Lange & Söhne has revealed two new timepieces at Watches and Wonders 2026. The German manufacture from Glashütte has launched the Lange 1 Tourbillon Perpetual Calendar “Lumen” and the Saxonia Annual Calendar.

The Lumen is the headline act. It combines a tourbillon, a perpetual calendar and a moon-phase display, three of watchmaking’s most demanding complications, in a single watch. Oh, and everything on the dial glows in the dark.

That last detail sounds like a gimmick, but isn’t. The transparent sapphire dial allows UV light to continuously charge the luminous elements beneath it. The result is a watch that reads beautifully by day and transforms into something genuinely spectacular at night.

The dial layout follows the classic Lange 1 formula. Displays are arranged as an isosceles triangle, with the outsize date at upper left, a retrograde day-of-week display below it, and the hour and minute subdial at upper right. Months appear on a rotating ring around the dial’s circumference – an elegant solution that keeps the face uncluttered.

The moon-phase display is a first for Lange. It includes an integrated day/night indication, with a celestial disc rotating once every 24 hours. By day it shows an empty sky. At night, stars appear. The moon moves across this backdrop with extraordinary accuracy – it will only need correcting by one day after 122.6 years.

The movement inside is the new calibre L225.1. It contains 685 parts and 74 jewels, including a diamond endstone. The tourbillon cage, cock and intermediate-wheel cock are finished in black polish – one of the most demanding and time-consuming techniques in watchmaking.

Stars and a shooting star are engraved by hand on the tourbillon and intermediate-wheel cocks. These are the kind of details you’ll never see on the wrist, but they matter enormously to anyone who cares about what goes into a watch.

The rotor is new too. For the first time on this watch, it is crafted from 18-carat white gold with a centrifugal mass in 950 platinum. Power reserve is 50 hours.

The case is 42mm in 950 platinum, with a height of 13mm. It’ wears’s finished on a black alligator strap with a platinum deployant buckle. Only 50 will be made.

The Saxonia Annual Calendar is a very different proposition, and arguably the more wearable watch. At 36mm in diameter and just 9.8mm tall, it is compact enough to slip under a shirt cuff.

The new calibre L207.1 is self-winding, a departure from the manual-wind movements traditionally found in the Saxonia family. It delivers 60 hours of power reserve and beats at a frequency of 21,600 semi-oscillations per hour.

The annual calendar does the clever work automatically. It knows which months have 30 days and which have 31. The only manual correction needed is once a year, at the end of February.

Two versions are available. White gold with an argenté dial is the more understated choice, while you’ll want to opt for the pink gold with a grey dial to show off.

Both are finished on reddish-brown alligator straps.

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