URWERK UR-230 “Black Star”: Darkness as the Ultimate Medium of Expression
The URWERK UR-230 “Black Star” watch takes this independent watchmaker back to absolute, profound, cosmic darkness. As the final chapter of its classic trilogy, this piece does not aim to reflect light, but rather to absorb and reshape it. Following the “Eagle” watch crafted from carbon fiber CTP and the UR-230 “Polaris” watch showcasing mineral-like purity in white ceramic, the “Black Star” watch concludes the 230 series with a star-like depth, like a gravitational singularity, shimmering faintly in the shadows.
Welcome to the dark side of URWERK.
A Caliber Protected Like an Atomic Heart
The UR-230 “Black Star” stands out with its unique design. At its heart is the UR-7.30 movement, sealed within a titanium case resembling a mechanical safe.
Around this protected core component, URWERK designed a hybrid case incorporating the following elements:
- Laminated composite ceramic inner case,
- Black DLC titanium case back,
- A technically sophisticated, precise, and sharp aesthetic, favored by master watchmaker and brand co-founder Felix Baumgartner.
“Ceramic is hard, lustrous, and textured… yet extremely fragile,” he explains. “I didn’t want to abandon this material. So we had to find another way.”
URWERK developed a unique composite ceramic, composed of alternating layers of woven ceramic, carbon fiber, and glass fiber. After processing, this material exhibits a black texture, punctuated with shimmering points of light: a vibrant and dynamic black, as if light breathes beneath its surface.
For Art Director and co-founder Martin Frey, the "Black Star" is the counterpart to the cosmic North Star:
"The North Star symbolizes the brilliant light of stars. The Black Star belongs to interstellar space. This blackness seems to breathe; it allows light to emerge from the shadows."
In astrophysics, a "Black Star" refers to a star in a state of gravitational collapse, a critical state where light has almost disappeared, but not completely—suspended on the boundary between existence and nothingness.
The UR-230 "Black Star" embodies this duality: a rich and vibrant black that does not deny light, but rather reveals it by enveloping it in darkness.
Satellite Complexity: URWERK's Iconic Design
The UR-230 "Black Star" showcases URWERK's pure DNA through its displays:
Roaming Clock Hands + Retrograde 3D Hands
Three cube-shaped satellites, each carrying time, revolve around a central hub.
Each satellite traverses a 120° sector within 60 minutes.
A hollowed-out retrograde hand follows the passage of time minute by minute, then immediately returns to zero to greet the next satellite.
This is a unique mechanical choreography, somewhere between kinetic sculpture and pure technology.
Dual Turbines: Airflow Control
The UR-230 features a unique dual-turbine system, a true mechanical hallmark of URWERK:
The first turbine absorbs external shocks, improving the durability and lifespan of the movement.
The second turbine acts as an aerodynamic brake, regulating the load on the automatic winding rotor.
A control button on the back of the housing allows you to perform the following operations:
Adjust the winding intensity,
Limit the load,
or completely deactivate the rotor and switch to manual winding.
Two symmetrical indicators (located at 11 o'clock and 1 o'clock respectively) display these parameters in real time.
UR-230 Black Star: The Final Chapter Before a New Cycle
URWERK brings the 230 series to a perfect close with the UR-230 "Black Star".
The end of a cycle… but most importantly, the announcement of new horological explorations planned for 2026, where time and shadow may once again redefine the boundaries of contemporary haute horlogerie.
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3 days ago