The A. Lange & Söhne Datograph is arguably one of the most fascinating chronograph wristwatches produced by a modern manufacture. With a beautiful combination of traditional watchmaking and fine aesthetics, the Datograph displays a well-balanced dial layout on the front and when flipped to the movement side, it displays its in-house manual movement, expertly finished throughout with Glashütte stripes and signature hand-engraved balance cock. The oversized date window display, particular to Lange wristwatches and inspired by the Dresden Semper Opera clock, crowns the dial atop simplified and highly legible - and in this edition, luminous - seconds and minute counters. Traditionally produced in platinum and pink gold with a solid black dial, the “Lumen” transcends these aesthetics, bringing a completely fresh appeal to the famed model.

First introduced in December 2018, the Datograph “Lumen” was launched as a limited edition series of 200 pieces. Differentiating from its regular peers, the dial is where the magic happens. With a complex construction of the main dial in tinted sapphire, the translucency allows the main plate below to be exhibited, proudly displaying its precise perlage finish on the surface. Although many may think that the implementation of the tinted sapphire was purely for aesthetics, it serves an important purpose. The tinted sapphire dial allows the luminous material to absorb UV rays from daylight to be luminous at night. This feature applies to all luminous components on the dial including the tachymeter scale, subsidiary dials, date and power reserve indicator. The present example Datograph “Lumen”, numbered 66, is presented in excellent condition and is accompanied by its A. Lange & Söhne Guarantee, product literature, wallet, presentation box and outer packaging.