Maximus: The world’s largest tourbillon

A KERBEDANZ world premiere in a limited edition of 99 pieces, introducing Maximus: The world’s largest tourbillon cage at 27 millimetres across.

An unusual timepiece that breaks the mould, the Maximus masterpiece of horological micromechanics was introduced to the media and all the world’s buyers at the end of March at the Baselworld trade fair.

With its 27-millimetre cage, which is almost twice the size of the largest one known to date, the biggest wristwatch with tourbillon in the world, by KERBEDANZ, couldn’t be called anything but Maximus. Indeed, the most imposing monument of all of Roman Antiquity is still in Rome to this day and is called the Circus Maximus in Latin and in Italian. This famous venue was used for horse-drawn chariot races. It was built between the Palatine and Aventine Hills in the early 6th century B.C.E. by the Etruscan king, Tarquin the Elder.

Quintessential complication meets chronometric science

This unbelievable watch, which transcends this seminal complication in a technically impeccable and visually most spectacular manner, represents a watershed in the story of this top-flight brand, KERBEDANZ, which has been winning over more and more informed collectors and MIP—most important personalities—from its home base in Neuchâtel, Switzerland. This term, in contrast with the hyped term, is a discreet reference to the fact that the brand’s customers include individuals who have the most influence in the world, like statesmen and women, in other words, people with power and influence. It’s an important watershed because until now, KERBEDANZ revealed its multiple crafts inherited from a long family tradition in the field of jewellery in the extreme luxuriance of its dial decoration, which always features a host of allegories and initiation journeys combined with stylistic civilizational references to history. All those limited editions or unique pieces might easily conceal the fact that the brand also integrates the quintessence of the art of traditional Swiss horological complication, and that it is able to develop the most complex products using the science of chronometry.

The tourbillon was invented by the great watchmaker Abraham Louis Breguet (1747-1823). The complication places the regulating organ of the watch inside a cage that turns on itself, thus varying the position of the regulating elements to compensate for errors due to gravitational forces, to non-concentric development of the balance spring, and the point where it is attached to the collet. In watchmaking, enlarging the size of certain components does not mean just multiplying their size. Everything needs to be reinvented, recomputed. Two patents are pending.

Symbolism that serves an ultimate calibre  

Not only does the Maximus flying tourbillon by KERBEDANZ allow one to better observe and understand the subtleties of this fascinating mechanism, thanks to its sheer size, but it also demonstrates the extent of the company’s watchmaking competencies:  This watch required conception and manufacturing of a special balance spring, a rack with a screw for fine adjustment, and a balance wheel. The cage of this watch makes a full rotation once every six minutes, and not in sixty seconds, which is usually the case.

In terms of energy, the Caliber KRB-08, with its giant central flying tourbillon, in-line pallets, and 27-millimeter cage, boasts four parallel barrel springs that drive a central wheel mounted on ball-bearings. This produces enough power for a tourbillon of such size.  It runs at a frequency of 2.5 Hertz, or 18,000 vibrations per hour. The feat lies in being able to develop a power reserve of 54 hours, which is displayed on a separate indicator. The watch is made up of 415 carefully assembled components, of which 73 are dedicated to the tourbillon cage. The latter is made entirely of titanium and only weighs 1.35 grams. Achieving such perfection requires the expert hands of select watchmakers.

Maximus, in antiquity, was a key word wherever grandeur and splendour were being expressed. Now, the term has taken on a new, masterly dimension, one made up of a respect for watchmaking fundamentals, combined with a bold quest for watchmaking excellence. A significant opus, and an inescapable one as well.


Hours, minutes, 6-minutes tourbillon, power reserve indicator


Gold. Exclusively designed, manufactured, hand- decorated by KERBEDANZ


Alligator mississippiensis strap, 18-karat gold buckle personalized by KERBEDANZ

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