URWERK UR-120 Blue Planet: The Final Satellite Salute

Key Highlights

• Third and final iteration of the UR-120 series, designated “Blue Planet”
• Limited to 20 pieces worldwide
• Calibre UR-20.01 self-winding, 175-component carousel with Vulcan salute complication
• 47 mm sandblasted steel case with articulated lugs and domed anti-reflective sapphire crystal
• Lyre-shaped springs and Maltese crosses finished in 24K yellow-gold PVD
• Priced at CHF 115,000 (tax not included)

Why It Stands Out

For collectors in the GCC who prize genuine mechanical invention over decorative gesture, the UR-120 Blue Planet arrives as something rare: a closing statement with no concessions.

URWERK, founded in Geneva in 1997, limits annual production to roughly 200 watches. With only 20 examples of the Blue Planet, this final UR-120 sits at the furthest edge of scarcity even within that deliberately constrained output. It is the kind of piece that does not circulate at retail for long — and its significance to the independent watchmaking canon is already fixed. Collectors familiar with the brand’s trajectory from the UR-101 Diamond Sky onwards will recognise this as the punctuation mark on one of URWERK’s most technically ambitious series.

The Story Behind It

This is the decisive threshold — the mission accepted, the spacecraft cleared for launch.

URWERK positions the Blue Planet as the third act of the UR-120 narrative, and the colour choice carries weight beyond aesthetics. Deep, almost liquid, the blue reads simultaneously as Earth viewed from orbit and the uncharted azure of open space. Artistic director and co-founder Martin Frei describes the two-part interlocking case construction as a deliberate reference to Gerald Genta’s carapace approach: a base and upper shell that fit together with such precision that the seam vanishes entirely. Construction, in Frei’s view, becomes an act of design rather than a technical obligation.

Craftsmanship & Mechanics

Three hour satellites orbit a central carousel; the Vulcan salute transforms horological complication into cultural signal.

At the heart of Calibre UR-20.01, each satellite advances along the minute track before rotating off-stage. When a satellite reaches the left side of the case, its two rectangular arms split to form a V. The gesture, familiar to generations of science-fiction enthusiasts, is here engineered to micron-level tolerances. Co-founder and master watchmaker Felix Baumgartner notes that the carousel alone comprises 175 components, with a lyre-shaped spring governing the opening and closing of the arms while Maltese crosses sequence each cycle with absolute regularity. The lyre springs and Maltese crosses are finished in 24K yellow-gold PVD against the deep blue architecture, making energy itself visible: each stored impulse glows before it is released as motion. URWERK produced the lyre-shaped spring in-house, consistent with the Maison’s commitment to independent research over sourced solutions. This level of in-house mechanical authorship is what draws discussion at Watches and Wonders and within collector circles across the Gulf.

On the Wrist

The Blue Planet is a 47 mm presence, yet its ergonomics are considered with uncommon care.

The sandblasted steel case measures 44 mm in length and 15.8 mm in height. Articulated lugs — a feature rarely seen in URWERK’s design vocabulary — extend the case with continuous flow, and a concealed spring within the 6 o’clock lug fine-tunes the fit without visible mechanical intrusion. The domed sapphire crystal draws the eye down into the display rather than sitting passively above it. Water resistance reaches 3 ATM. The watch ships on a blue Cordura-textured calfskin strap with a satin-brushed steel pin buckle, completing a coherent visual language from case to clasp.

Where It Sits in the URWERK Line-Up

The UR-120 Blue Planet belongs to URWERK’s Satellite collection, the Maison’s founding line and its most recognisable signature.

Within that collection, the wandering-hour display defines the brand’s philosophy: time as orbital event rather than static readout. The UR-101 Diamond Sky occupies a different register within URWERK’s portfolio, but the Blue Planet closes the UR-120 chapter as the definitive chromatic expression of the series. At CHF 115,000 before tax, it competes on its own terms — not against conventional complications, but against the handful of independent ateliers capable of producing kinetic horological sculpture at this level of resolution.

For collectors seeking more on URWERK’s output, the UR-101 Diamond Sky coverage offers useful context on how the Maison moves between its satellite-hour and special-project registers.

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