Introducing The A. Lange & Sohne Datograph Up/Down Lumen In Platinum (price)

A. Lange & Sohne Datograph Up/Down Lumen in platinum.

Taking a true classic and making it new isn’t always easy, but German watch brand A. Lange & Sohne makes it look easy time and again. Now the brand unveils a new twist to it beloved Datograph — releasing the platinum cased Datograph Up/Down Lumen. The Datograph, the brand’s first proprietary chronograph caliber with column-wheel design, jumping minute and flyback function was unveiled in 1999, and fast became an icon as a beloved timepiece by collectors. In 2012, A. Lange  & Sohne equipped that special Datograph with a power reserve indicator (60 hours) — releasing the Datograph Up/Down. Since then, there have been several entrancing updates to the Datograph Up/Down.   Now, the platinum version with Lumen dial — created in a limited edition of just 200 pieces, is destined for the same iconic status.

A. Lange & Sohne’s Datograph Up/Down “Lumen” is the fourth watch in the brand’s Lumen collection.

In the new timepiece, all indications are legible even in darkness, thanks to its semi-transparent dial and luminous displays. Key highlights of this watch are, of course, its beautifully balanced dial design, outsized date in double apertures and two subsidiary dials for the seconds and jumping minutes indications. The Lumen that glows in the dark and coats the hands gives off a distinct green hue. Additionally, the minute scale, the tachymeter scale, and power reserve arrow also glow green. However, the true attraction in the dark of this watch is the luminous over-sized date, that recharges during the day and glows just after midnight via a semi-transparent dial.

A. Lange & Sohne platinum Datograph Up/Down Lumen will be made in a limited edition of 200 pieces.

This watch marks the fourth Lumen model in the series that was first launched in 2010.  Equipped with a sapphire crystal caseback, the watch features the lavishly finished 454- part manually wound calibre L951.7. The 41mm Platinum watch allows for one-fifth of a second timing thanks to the 300-marker minute scale. It retails for $100,500.

A. Lange & Sohne Datograph Up/Down Lumen houses a 454-part caliber.


Technical Specs of the A. Lange & Sohne Datograph Up/Down “Lumen” Ref. 405.034

Movement	Lange manufacture calibre L951.7; manually wound, crafted to the most exacting Lange quality standards, decorated and assembled by hand; precision-adjusted in five positions; plates and bridges made of untreated German silver; balance cock engraved by hand
Movement parts	454
Jewels	46
Screwed gold chatons	4
Escapement	Lever escapement
Oscillator	Shock-resistant balance wheel with eccentric poising weights; balance spring manufactured in-house with a frequency of 18,000 semi-oscillations per hour, precision beat adjustment system with lateral setscrew and whiplash spring
Power reserve	60 hours when fully wound
Functions	Time indicated in hours, minutes and subsidiary seconds with stop seconds; flyback chronograph with precisely jumping minute counter; power-reserve indicator; outsize date
Operating elements	Crown for winding the watch and setting the time, two pushers for operating the chronograph, one rapid correction pusher for the outsize date
Case dimensions	Diameter: 41.0 millimetres; height: 13.4 millimetres
Movement dimensions	Diameter: 30.6 millimetres; height: 8.1 millimetres
Case	Platinum
Dial	Basic dial (outer ring) in German silver, polished; inner segment in coated sapphire crystal; outsize date, subsidiary dials, minute scale, tachymeter scale and power-reserve indicator luminous
Hands	Rhodiumed gold hour and minute hands, luminous; chronograph hand in rhodiumed steel, luminous; seconds hand and minute counter in blued steel
Crystal and back	Sapphire crystal (Mohs hardness 9)
Strap	Hand-stitched alligator leather strap, black
Buckle	Lange prong buckle in platinum
Limited edition	200 watches

Datograph Up/Down Lumen Movement with oversized date.