Home News A. Lange & Söhne DATOGRAPH UP/DOWN “Lumen”: The first noctilucent chronograph in the company’s history

A. Lange & Söhne DATOGRAPH UP/DOWN “Lumen”: The first noctilucent chronograph in the company’s history

by Hours and Minutes Australia

Nearly twenty years after the original’s debut in 1999, the manufactory is now presenting the DATOGRAPH UP/DOWN “Lumen”, a reinterpretation of this exceptional stopwatch. It is a timepiece that expresses stringent clarity by day and becomes a luminous guide at night. As a reflection of our modern, pulsating times, it is also a timeless fixed star within our era.

The concept is based on a sapphire-crystal dial with a patented, semitransparent coating. It filters out visible light and all but conceals the inner workings of the watch. But in bright surroundings, it candidly reveals the mechanism of the Lange outsize date as well as the hand- decorated plate. At the same time, the coating is permeable to energy-rich UV light that charges the luminous pigments on the displays. So it is precisely legible and operable even in the dark. The darker the surroundings, the brighter the indications glow in a green hue that the human eye perceives as very agreeable.

This chronograph is composed of a total of 454 parts. Apart from the outsize date, it features a precisely jumping minute counter as well as a stop mechanism with a flyback function. Thanks to this function, a single actuation of a button stops an ongoing measurement, resets the chronograph hands to zero, and starts a new measurement. Additionally, the watch has an Up/Down indication that displays the state of wind within the range of the 60-hour power reserve. Its hand is positioned in a small display at 6 oclock.

Because of its lucid dial architecture, the first DATOGRAPH in 1999 quickly became a prized collectible among design purists. Now, the family welcomes the DATOGRAPH UP/DOWN “Lumen” as a further collectors’ timepiece. It is also A. Lange & Söhne’s fourth “Lumen” model. This small series was launched in 2010 with the ZEITWERK “Luminous”. It was followed in 2013 by the GRAND LANGE 1 “Lumen” and in 2016 by the GRAND LANGE 1 MOON PHASE “Lumen”. All of them are limited-edition watches cased in platinum. The DATOGRAPH UP/DOWN “Lumen” edition consists of only 200 pieces.

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