A. Lange & Söhne has added a new chapter to its Lumen family with the Lange 1 Tourbillon Perpetual Calendar Lumen, a 50-piece limited edition in platinum that brings glowing calendar displays to one of the manufacture’s most technically dense references.
The watch combines the familiar asymmetry of the Lange 1 with a smoked, translucent dial architecture that lets the perpetual calendar indications glow after dark while revealing parts of the mechanical landscape beneath.
A luminous take on Lange’s most complicated Lange 1
The Lumen concept has become one of Lange’s most distinctive modern signatures, appearing previously on models such as the Grande Lange 1 Moon Phase, Datograph Up/Down and Zeitwerk Honeygold.
Here, that treatment is applied to the instant-jump outsize date, hour and minute hands, retrograde day display, peripheral month ring, moon phase and leap-year indicator, all using Super-LumiNova for a rare nighttime expression of a high-complication dress watch.
A translucent dial that actually charges the display
The dial is not simply darkened for effect, as the sapphire crystal receives a special treatment that allows ultraviolet light to pass through and charge the luminous material hidden below the visible surfaces.
That technical choice gives the watch its character, balancing the strict layout of a perpetual calendar with a partially exposed view of the 685-component calibre L225.1 underneath.
Calibre L225.1 and a tourbillon in platinum
Inside the 41.9 mm platinum case is Lange’s automatic manufacture movement, delivering around 50 hours of power reserve while driving a perpetual calendar that will not need a manual calendar correction until March 1, 2100, provided the watch remains running.
The tourbillon is visible through the sapphire caseback, where Lange’s hand finishing takes over with black polishing, hand engraving and the brand’s familiar mix of architectural precision and traditional Saxon decoration.
A 50-piece Lumen for serious Lange collectors
The Lange 1 Tourbillon Perpetual Calendar Lumen is aimed squarely at collectors who appreciate Lange’s restrained engineering but want one of its rare more experimental executions.
It keeps the intellectual appeal of a perpetual calendar tourbillon intact, yet adds a nocturnal personality that makes the complication feel newly alive without losing the manufacture’s characteristic discipline.
