The Grand Complication. “It simply marks the beginning of a new era”, says Anthony de Haas, Director Product Development at A. Lange & Söhne.

A. Lange & Söhne The Grand Complication

Read an interview about a horological masterpiece; see new pictures and the very first picture of its stunning, ultra complicated movement.


The Grand Complication features a grande and petite sonnerie, minute repeater, a chronograph with rattrapante as well as flying seconds and a perpetual calendar.


A. Lange & Söhne The Grand Complication
A. Lange & Söhne The Grand Complication


Anthony de Haas, Director Product Development, answers questions on the most complicated wristwatch ever crafted by A. Lange & Söhne.

Alexander Linz and Anthony de Haas
Alexander Linz and Anthony de Haas


1. What does The Grand Complication mean for A. Lange & Söhne?

With the development of the most complicated wristwatch ever built by A. Lange & Söhne – and in Germany – we entered uncharted territory in the domain of horology. The unique combination of seven, some very rare, complications is not only a tribute to the tradition of our brand, but marks above all the beginning of a new era in the history of A. Lange & Söhne.

2. What do you mean by ‘a new era’?

The building of this multiple complication with the most complex of chiming mechanisms that bears the distinctive signature of our unique Saxon watchmaking culture has expanded our knowledge and released a lot of creativity. It is not an exaggeration to say that this project has opened the gate to many new ideas and designs.

3.      What was the biggest challenge in the development of The Grand Complication?

The project was an adventurous expedition into the universe of complexity where danger lurks on every corner. It imposed extreme requirements on the perfect interaction of many intricate mechanisms and hundreds of parts. To give an example, we had to avoid any loss of amplitude when at midnight all indications of the perpetual calendar are switching and the grande sonnerie is striking simultaneously. We succeeded in mastering this challenge and have even made it possible for the owner of the timepiece to operate the rattrapante mechanism at the same time.

4.      What is required of watchmakers to assemble the movement of The Grand Complication and how long does it take them?

Assembly must adhere to exacting requirements in terms of precision and the perfect interaction of intricate mechanisms. Only the most talented and experienced watchmakers will be able to master the challenges associated with assembling the movement and its 876 parts. Even the most experienced watchmakers will take about a year to accomplish the mission. It requires the highest level of concentration, experience and sensitivity – and a lot of patience.

5.      What happens during this rather long period of assembly

The assembly time of one year includes above all elaborate and comprehensive test procedures. For example, the chiming mechanism is monitored day and night. In turn, this recording has to be evaluated to check whether the mechanism has been chiming correctly every single quarter. If not, it has to be dismantled, adjusted, assembled and checked again to see if it is functioning properly. ‘Free, with no shake’ is the mantra that governs the interplay between the moving parts of a chiming mechanism.


A. Lange & Söhne The Grand Complication  A. Lange & Söhne Caliber L1902
A. Lange & Söhne The Grand Complication A. Lange & Söhne Caliber L1902


6.      Why did you choose 2013 to present this fundamental piece in the history of the manufactory?

This year is dedicated to our horological heritage. ‘Unique by tradition’ is the theme we have chosen for 2013. By tradition, A. Lange & Söhne is a unique brand that follows its own path and in doing so constantly tries to outperform its own achievements. The Grand Complication is the perfect embodiment of this idea.

7.      What is the message that A. Lange & Söhne is sending with The Grand Complication?

More than any other watch ever built by A. Lange & Söhne The Grand Complication manifests the endeavour of our product developers and master watchmakers to extend the boundaries of fine mechanical watchmaking. And what is more, it contains a promise to our collectors: our ambition to never stand still will keep us committed to enriching the world of fine watchmaking with meaningful contributions.


A. Lange & Söhne The Grand Complication
A. Lange & Söhne The Grand Complication


8.      After The Grand Complication, what can we expect from A. Lange & Söhne in the future?

As a matter of principle, we do not comment on future developments. However, we are constantly working on a number of product development projects. There is an unrelenting demand for timepieces with sophisticated complications. We have responded to this trend in the past two decades with many exciting developments and we will have attractive new products to address it in the future. In other words: we will continue our product policy of watchmaking excellence and unmatched craftsmanship

9.      How does The Grand Complication compare to the pocket watch No. 42500 that Lange presented three years ago?

The Grand Complication is an independent development that opens new gates as regards technical and manual demands. The technical highlights are inspired by the tradition of horological complications that A. Lange & Söhne took to new levels in the late 19th and early 20th century. The pocket watch No. 42500 is perhaps the most prominent and sophisticated example. The know-how acquired during its restoration provided valuable insights and sparked new impulses. The same holds true for the development of the Grand Complication.


A. Lange & Söhne The Grand Complication
A. Lange & Söhne The Grand Complication


10.    How does The Grand Complication command its price of almost two million euros?

Looking at the price one has to bear in mind that it took our product developers seven years to master all of the technical challenges involved in the design of this exceptional timepiece and that the entire series consists of six pieces only.

11.    Is it true that all six pieces have been sold?

It is true that the number of serious A. Lange & Söhne collectors interested in the watch is higher than the supply. But it has not been decided yet which of the potential buyers will eventually receive one. Unfortunately, we cannot produce more Grand Complications as it would tie up capacities that we need for our new projects.


A. Lange & Söhne The Grand Complication
A. Lange & Söhne The Grand Complication
A. Lange & Söhne The Grand Complication
A. Lange & Söhne The Grand Complication




More from Alexander Linz
11 replies on “The Grand Complication. “It simply marks the beginning of a new era”, says Anthony de Haas, Director Product Development at A. Lange & Söhne.”
  1. says: Mezdis

    Truly an extraordinary and stunning piece. Congratulations to ALS!

    One question, Alex: On one picture we can see you and Anthony de Haas with (presumably) The Grand Complication in his hands. The other images seem to be renderings and/or commercial images by ALS.
    As you usually post at least a dozen of great self-made pictures, I am wondering… where you not allowed to take photos of this masterpiece?

    1. No, I simply have in this case not been in Glashütte and the the picture was taken earlier. This Q&A was in written form. But I will for sure be able to present you photos of this superb watch later this year.

  2. says: BCP

    Super watch – but only makes the grand complication watch that is being made by British watchmaker Peter Roberts look like incredible value.

  3. says: Peter U.

    The long thin bronze coloured hand is for the seconds but what is the long thin blue coloured hand for ?

  4. says: Nick Parker

    Breathtaking. One has nothing but admiration for the engineers who take a year to assemble 876 parts to fit on one’s wrist. One also has to admire the commitment of management to give 7 years for the design and development of this staggering product. Well done to the Board. A work of extreme art.

  5. says: Debashish

    An outstanding watch, no doubt about it! But beyond the reach of ordinary folks. We can only admire it from far!

    1. Yes, but its good to know that such watches are made. They keep the real spirit of watchmaking alive. My full respect to those who are able to create and manufacture such timepieces…

    1. says: Peter U.

      Why do you need two ? Maybe one to wear and the other one to put away as an investment . I know you are only joking, or are you, lol ?

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