Focus: A.Lange & Söhne

Datograph Up/Down “Lumen”

CASE : platinum, sapphire caseback

SIZE : 41mm, 13.4mm thick

MOVEMENT : mechanical manual-winding Caliber L951.7, 18,000 vph, 60h power reserve

FUNCTIONS : hours, minutes, small seconds with stop-seconds device, flyback chronograph, power reserve, large date

DIAL : nickel silver outer ring, treated sapphire inner segment

STRAPS : black alligator leather, platinum pin buckle


Light in stock

Since its launch in 2012, the Datograph is one of the favorite timepieces among collectors and fans of the Saxony-based brand. First of all, for its technical qualities, including the flyback function serving to perform several successive timing operations simply by pressing the pusher ; as well as its jumping chronograph minutes advancing in one-notch increments as soon as the central hand passes the 60th second, a token of great precision. Other notable and much sought-after features include its large date and its power-reserve indicator (ab/auf – up/down). Finally, these indications are beautifully arranged on an extremely legible dial, a style signature of A. Lange & Söhne. The new “Lumen” version now brings the Datograph another type of clarity radiating a subtly enigmatic aura. While the three large hands bear a traditional luminescent coating, the halo of green light suffusing the counters, the external dial ring, the tip of the power-reserve pointer, and above all the large date, stems from “Lumen” technology. A semi-transparent treated sapphire dial filters the light, while allowing through the ultra-violet rays required to recharge the luminous pigments with phosphorescent energy during the daytime hours. The watch thus glows with a diffuse light in the dark, almost resembling that of a screen. Another of the sapphire dial’s assets lies in its manner of revealing the beautiful circular-grained mainplate and the date disks.

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