P8 MOVEMENT

P8 MOVEMENT
Pivoted Detent Escapement
Pivoted Detent Escapement

So robust that it passed the Chronofiable® test.

Central second-hand
Central second-hand

Sweeps over the dial at 3 beats per second.
The only mechanical wrist watches in the world to do so.

Considered an impossibility until 2011
Considered an impossibility until 2011

Previously used exclusively in ship’s chronometers in the 18th and 19th centuries.

In 2011, Urban Jürgensen presented the prototype of the groundbreaking UJ-P8 movement, the world’s first wristwatch movement utilizing a chronometer escapement, thus connecting the marine chronometers and clocks made by the firm in the 18th and 19th centuries directly to the world of watchmaking in the 21st century.

The extreme precision of the detent escapement, which lies at the heart of defining a true chronometer, ranks far above the tourbillon in terms of accuracy and horological importance. Nonetheless, until 2011 it was considered an impossibility to successfully implement it in a modern wristwatch. In the 18th and 19th centuries, it was used exclusively in ship’s chronometers, built to withstand the motion of the open sea, always with the dial facing upwards in a gimbal mounting and set within a closed box.

In today’s world, the day-to-day hazards of life on a wrist are extreme compared to the marine environment and, therefore, the original escapement concept had to be altered. Additionally, this step required smaller dimensions in order to make the detent escapement practical and accurate for modern times.

After several years of research and heavy investments in classic watch making R&D, Urban Jürgensen was not only successful in creating a revolutionary Pivoted Detent Escapement for its new movement, it was also found to be so robust that it passed the Chronofiable® test; one of the toughest standards in the Swiss Horological Industry.

In 2015, Urban Jürgensen took a step further in the development of its Detent Escapement and its movement. Completely in line with the company’s high standards of manufacturing and traditions, the new design of the bridges and the intricate new finish of the movement found in this collection elegantly and mechanically close the circle between Urban Jürgensen past and present.

Connoisseurs and experts will immediately recognize this as a unique timepiece, as the central second-hand sweeps over the dial at 3 beats per second. The only mechanical wrist watches in the world to do so.