Lange & Söhne is not a brand that fills the market with introduction after introduction. As a very exclusive manufacture this is simply not their style, but when they do introduce a new model, you can count on it that it is something very special!
This is also the case with the Datograph Up/Down “Lumen,” which is as its name already indicates, a special version of the classic column-wheel chronograph that the brand launched in 2012. By fitting it with a semi-transparent dial, more of the exquisite finishing of this watch is visible, but that is not the full story why Lange & Söhne did it. Because of this special dial, light can enter the movement, but more so, also charge the elements that make up the oversized date.
That is not all, because while the hour and minute hand are filled in with the same green colored luminous material, the chronograph seconds hand is fully coated with it. Also, the subdials showing the running seconds, as well as the minute counter have this finish. The beauty of this is that during daylight this Datograph Up/Down “Lumen” is your ‘typical’ classical Lange & Söhne, but when the lights go out, the watch shows a completely different side from itself.
Also, the outer ring, with the minute and tachymeter scale is luminous, literally highlighting this exceptional creation by Lange & Söhne. The brand will make 200 pieces of this watch, all fitted with a 41mm large, platinum case, which houses manual wind caliber L951.7. This movement is made completely in-house and consists out of no-less than 454 parts, has a power reserve of 60 hours, and is decorated by the highest German standards. Unique is that the main plate and bridges are crafted from untreated German Silver with the balance cock engraved by hand. This traditional approach forms in important ways the soul of Lange & Söhne, who in our modest opinion has just created its coolest and most desirable chronograph to date with the Datograph Up/Down “Lumen.”