A. Lange & Sohne Datograph Up/Down “Lumen” 41 mm Black Dial Platinum Leather Strap 405.034 / LSLS4052AI

This model was introduced in 2018. The dial is made of polished German silver and incorporates segments in semi-transparent sapphire crystal. The hands are made of rhodiumed gold and blued as well as rhodiumed steel. The chronograph sweep seconds hand, the hands for hours and minutes, as well as the power-reserve hand are luminous. The hour markers at 3, 6, 9, and 12 o'clock, the subsidiary dials, and the tachymeter scale are luminous as well.