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The chronograph that never sleeps

The DATOGRAPH UP/DOWN “Lumen” is the fourth model of the “Lumen” series that A. Lange & Söhne launched in 2010. Its semi-transparent dial and luminous coatings assure that all features can also be used in the dark: the time indication, the outsize date, the chronograph functions and the power-reserve indicator. The flyback chronograph with the precisely jumping minute counter comes in a limited edition of 200 watches in platinum.

The DATOGRAPH UP/DOWN “Lumen” comes in a limited edition of 200 timepieces. The DATOGRAPH UP/DOWN features luminous hands and appliques.

Even in the dark, the displays are clearly legible because the three central hands as well as the applied arrow marker of the power-reserve indicator are coated with a luminous compound. The seconds and minute-counter hands in blued steel each revolve in front of a phosphorescent subsidiary dial. The display surfaces of the outsize date also glow with a green hue perceived as pleasant by the human eye. For the first time in a Lange watch, the inner dial ring with the minute scale is luminous as well.

Discover the model

1 Model of the DATOGRAPH UP/DOWN "Lumen"

Movement L951.7

Number of movement parts


Number of rubies


Number of screwed gold chatons


Power reserve

60 hours when fully wound

Oscillation system

Frequency: 18000 semi-oscillations per hour

Beat-adjustment system: Screw balance

Movement measures

Diameter: 30.6 mm; height: 8.1 mm

Movement Movement
Movement Movement