Dispatch of the Datograph Perpetual Tourbillon has begun

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The first of the new DATOGRAPH ERPETUAL TOURBILLON watches of which there are just
100 have now been dispatched. The watch does exactly what its name suggests, combin-
ing a perpetual calendar with a flyback chronograph and a tourbillon in an absolutely
unique way.

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The tourbillon of the DATOGRAPH PERPETUAL TOURBILLON can only be seen by looking through the sapphire-crystal caseback.

The tourbillon of the DATOGRAPH PERPETUAL TOURBILLON can only be seen by looking through the sapphire-crystal caseback.

Since 2006 the name DATOGRAPH PERPETUAL has stood for the ingenious combination of
flyback chronograph and perpetual calendar. Ten years on, this fascinating timepiece is
now available with an added tourbillon – although at first glance, the only clue is in the
name on the dial. That is because the tourbillon can only be seen by looking through the
sapphire-crystal caseback.

For the watchmakers, integrating this popular mechanism into this exclusive timepiece
was a much more challenging task than might be expected. That is because the 729-part
calibre L952.2 movement was not simply constructed module by module. Instead,
Worth a closer look, page 2
A. Lange & Söhne decided on a more elegant but more complicated solution: within the
movement, which was rebuilt from scratch, the three complications that give the watch its
name were all connected to form an integrated whole.

The chronograph is equipped with a column-wheel mechanism, a precise jumping minute
counter and a flyback function. The jumping perpetual calendar is paired with a moon-
phase display and a Lange outsize date. And a glance through the sapphire-crystal case-
back into the movement – hand-decorated in accordance with the highest Lange standards
– makes it clear how the chronograph mechanism was arranged around the tourbillon.
Thanks to the patented stop-seconds mechanism, the balance wheel is momentarily
brought to a standstill when the crown is pulled, so that the watch can be set with one-
second accuracy.

The sophisticated nature of the watch’s construction is also reflected in its design: the
clearly structured black dial of this model – which is limited to just 100 watches – is easy to
read despite the density of information it displays.

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About A. Lange & Söhne
Dresden watchmaker Ferdinand Adolph Lange laid the cornerstone of Saxony’s precision watchmaking industry when he established his manufactory in 1845. His precious pocket watches remain highly coveted among collectors all over the world. The company was expropriated after World War II, and the name A. Lange & Söhne nearly vanished. In 1990, Ferdinand Adolph Lange’s great-grandson Walter Lange had the courage to relaunch the brand.
Today, Lange crafts only a few thousand wristwatches in gold or platinum per year. They are endowed exclusively with proprietary movements that are lavishly decorated and assembled by hand. With 54 manufacture calibres developed since 1994, A. Lange & Söhne has secured a top-tier position among the world’s finest watch brands. Brand icons, such as the LANGE 1 with the first outsize date in a regularly produced wristwatch and the ZEITWERK with its precisely jumping numerals display, rank among the company’s greatest successes. Sophisticated complications such as the RICHARD LANGE PERPETUAL CALENDAR “Terraluna”, the ZEITWERK MINUTE REPEATER and the DATOGRAPH PER-PETUAL TOURBILLON re flect the manufactory’s determination to achieve ever new pinnacles in horological artistry.