When URWERK closes a chapter in its horological playbook, it rarely does so quietly. Over the past two decades, co-founders Martin Frei and Felix Baumgartner have fundamentally reshaped independent watchmaking, replacing traditional hands and dials with kinetic orbital mechanics.
The UR-120—famously nicknamed “Spock” for its signature satellite complication—has reached its final destination.
Enter the URWERK UR-120 BLUE PLANET, a 20-piece limited edition that serves as the ultimate, sci-fi-infused send-off to one of the brand’s most daring platforms.
Priced at CHF 115,000 (excluding tax), this final transmission merges cosmic storytelling with haute horlogerie.
A Two-Part Spacecraft Architecture
Visually anchored in a shade of deep, almost liquid blue that evokes Earth viewed from low orbit, the UR-120 Blue Planet presents a masterclass in case geometry.
Measuring 47mm wide, 44mm long, and 15.8mm thick, the sandblasted steel case features a seamless two-part interlocking construction—a structural principle deeply favored by artistic director Martin Frei and inspired by the classic carapace designs of Gérald Genta.
* Reference: URWERK UR-120 Blue Planet (Limited to 20 Pieces)
* Case: Sandblasted Steel with Blue ALD Treatment (47mm x 44mm x 15.8mm)
* Movement: In-House Automatic Caliber UR-20.01 (48-Hour Power Reserve)
* Complication: Wandering Satellite Hours with Split-Stud "Vulcan Salute" Motion
* Strap: Blue Cordura-Textured Calfskin with Steel Pin Buckle
Without a single visible screw on its upper shell, the case appears as a unified, futuristic hull.
A sweeping, domed sapphire crystal draws the viewer deep into the kinetic theater below, while articulated lugs featuring a concealed spring at 6 o’clock allow the sculpted silhouette to hug the wrist with surprising ergonomics.
Mechanical Choreography: The Vulcan Salute
At the heart of the timepiece lies the automatic Caliber UR-20.01, a 32-jewel, 4 Hz engine engineered to turn time-telling into a theatrical performance.
As three satellite hour blocks orbit across the analog minute track, the movement executes its signature complication. Upon reaching the left-hand side of the display, each hour satellite splits open into two distinct rectangular studs, forming a sharp “V” shape—a mechanical homage to science fiction’s most famous greeting.
“The satellite studs spin on their own axes before rejoining to display the upcoming hour unit—a sequence governed by micron-level tolerances within a 175-component carousel.”
Executing this motion required developing a central carousel governed by precise Maltese cross mechanisms and custom, in-house produced lyre-shaped springs.
The movement architecture is finished with traditional haute horlogerie hand-decoration, including circular graining, straight graining, sandblasting, and Côtes de Genève.
Gold Highlights and Functional Light
Rather than treating gold as a mere luxury ornament, URWERK coats key kinetic elements—such as the lyre springs and Maltese crosses—in a 24K yellow-gold PVD finish.
Set against the deep blue ALD-treated background, these glowing accents function like mechanical beacons, highlighting the exact points where rotational energy is stored, transferred, and released.
| Specification | Details |
| Retail Price | CHF 115,000 (Tax Excl.) |
| Movement | Caliber UR-20.01 Automatic (28,800 vph / 4 Hz) |
| Power Reserve | 48 Hours |
| Water Resistance | 3 ATM / 30 Meters |
Paired with a blue Cordura-textured calfskin strap, the URWERK UR-120 BLUE PLANET represents a fittingly dramatic send-off for the reference.
At CHF 115,000, it stands not just as a rare collector’s item, but as a monument to independent Swiss horology reaching for the stars.
