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Datasheet

More than six years in the making, and requiring the expertise of over a hundred specialists, this unique timepiece is distinguished by both its size and the complexity of its mechanism.

The clock is 40,000 times heavier than a standard mechanical watch and yet it is extraordinarily precise. Its components were crafted from noble materials such as titanium, ruby, sapphire and aluminium to meet the highest standards of the watchmaking industry.

1

The clock movement is entirely mechanical, driven by two weights located on either side of the dial. The yearly weight descends over the course of a year and begins its ascent at midnight on December 31.

2

The black aluminium flange has 80 parts. The hour display is engraved in anti-reflective mineral glass.

3

The clock movement consists of 3,156 parts made from select materials that include brass, titanium, stainless steel and ruby

4

The Huygens endless chain is the visible part of the constant-force device, a highly sophisticated mechanism that maintains the regularity of the pendulum.

5

The regulating pendulum weighs almost 20 kg and the pendulum rod is made of invar, an alloy that is insensitive to temperature change.

6

The daily weight, the main driving force of the clock, also shows the local time in Jura. It takes 24 hours to descend and begins its ascent at 59 minutes past midnight, Jura time, or 18:59 Quebec City time.

7

The perpetual calendar is regulated by an ingenious electromechanical system that takes leap years into account.