Telescopic minutes hands

The Revolving Satellite Complication displays time using telescopic minutes hands operating through the middle of three orbiting and revolving hours satellites. The telescopic minute hands precisely adjust their length to follow the three sectors marking the minutes: 0-14, 15-44, 45-60. Extended (4.8mm long), they enable the UR-202 to display the time across a large, easy-to-read dial. Retracted (1.8mm long), they allow for a very wearable and comfortably sized case.

Patented carousel

The patented carousel is the critical component of the revolving satellite complication. It is responsible for not only the rotation of the hour satellites but also the integral telescopic minute hands.
This rotating central hub is an extremely complex part to manufacture due to the high precision and tight tolerances necessary. Many of the carousel’s intricacies have to be machined and finished to tolerances of 1/1000mm.

Moon-phase indication

Day/night indicator

Transporters

High precision 'transporters' are used to control the variable length of the minute hands. One end of each transporter follows a cam plotting the path of the minute indication, while the other controls the precise length of the minute hands.

Twin turbines

Innovative new winding system regulated by compressing air utilizing miniature turbines. Cutting-edge miniature twin turbines – miniature compressors – can be seen spinning on the back of the UR-202. They are coupled to the winding rotor and act as shock absorbers to reduce wear and increase the lifespan of the movement.

Airflow

The spinning turbines force air through holes into a tiny air chamber. The selector switch controls the amount of air escaping from the turbines. By restricting the airflow, air pressure increases and slows down the turbines and the winding rotor.
The turbine system is totally self-contained within the waterproof case. The air flows from under the turbines and is channeled up past them under a sapphire plate and down through holes leading to a tiny air chamber.

3-position selector switch

The turbines are controlled by a 3-position selector switch. This functions by adjusting the level of compression the turbines generate by selectively regulating the amount of air flowing inside the case.

While the selector position is continuously variable, the three principal positions are:

FREE - where the turbines spin freely; 

SPORT - where the air pressure generated by the turbines reduces the winding rate by approximately 35%; 

STOP - where the turbines and rotor are fully blocked - the UR-202 then operates as a manual wind watch.