In 2011 Urban Jürgensen presented the prototype of the UJS-P8 movement, the world’s first wristwatch movement utilizing a chronometer escapement.
In the 18th and 19th centuries, the detent escapement 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.
The extreme precision of the detent escapement ranks it far above the tourbillion in terms of accuracy and horological historic importance. Nonetheless, despite centuries of attempts, until 2011 nobody was able to implement it in a modern wristwatch.
The day-to-day hazards of today's life on a wrist are extreme compared to the marine environment and therefore, the original escapement concept had to be altered but also reduced in size. After several years of research, Urban Jürgensen was successful in creating a revolutionary Pivoted Detent Escapement for its new caliber, which passed the Chronofiable® test - one of the toughest standards in the Swiss Horological Industry.
In 2015, Urban Jürgensen took a step further with a new design of the bridges and an intricate new finish of the movement.
Here are its main features:
- Pivoted detent escapement
- Three level roller on the balance
- Escapement wheel working in two levels
- Security system for shocks
- Three individual pallets for three different functions
- Patented mechanism for better efficiency detent is smaller therefore less sensitive to shocks and easier to move.
