UR-220 C81

HISTORICAL PIECES
UR-220
" We wanted to have the finest possible pattern traced along the length of the UR-220’s case. We therefore needed a special kind of carbon in layers that are not only parallel but as thin as possible. The concentric pattern on the surface of the UR-220 is the result of this choice. In terms of style and technique this UR-220 is just the way we wanted it. "

MARTIN FREI

With its manually wound movement and control board on its back, the UR-220 goes back to URWERK’s earlier technologies in a case that is sleeker, more ergonomic and as stunning as ever. One exceptional feature is the return of the Oil Change indicator in a new guise. A limited production of 15 pieces every year!

FLYBACK MINUTE HAND
The UR-220 features a high-tech, oversized, three-dimensional retrograde minute hand. It encloses the hour satellite and indicates the time as it transverses the 0-to-60-minute scale. Then in less than 0.1 of a second the hand flies back to dock with the next hour satellite.

RETROGRADE SYSTEM
This lightning fast retrograde system is based on three key elements: a central axis set in ruby bearings ; a cylindrical marine chronometer type spring running vertically around the axis; a double coaxial star-shaped cam regulating the retrograde mechanism.

POWER RESERVE INDICATORS
The 48-hour power reserve is indicated in the upper left and right corners, featuring two hands moving across two scales. This power reserve distributed on two sub-dials is made up of 83 components, testifying its complexity of development.

OIL CHANGE SERVICE INDICATOR
The oil change indicator keeps a running track of how long (in months) the movement has been in operation.

CARBON CASE
The ultra-light case is made of 81 layers of CTP Carbon, compressed in a resin. These extremely thin layers (thickness : 0.15mm) are made to resist the onslaught of time. The carbon structure draw on the UR-220 a refined frame which underline the profiled shape of the case.

Case in Carbon and Titanium caseback
Dimensions 43.8mm x 52.9mm x 14.8mm
Glasses Sapphire crystal with anti-reflective coating
Water resistance Pressure tested to 3 ATM
Calibre UR-7.20 manual
Jewels 59
Escapement Swiss lever
Balance Monometallic
Frequency 28,800v/h, 4Hz
Balance spring Flat
Power source Single mainspring barrel
Power reserve 48 hours
Winding system Manual
Indications Patented revolving satellite complication with wandering hour and three-dimensional retrograde minute hand; power reserve indicator; oil-change service indicator; Super-LumiNova® on markers
Controls Two-position winding crown; Movement-initiator pusher