URWERK‘s UR-120 Blue Planet is the farewell flight of a modern icon. The third and final UR-120 claims a deep, liquid blue that reads like Earth from orbit. It is limited to 20 pieces and priced at CHF 115’000 before tax. Less a swan song than a calm ignition, it departs with quiet confidence.
The two-part case – base and shell – follows Martin Frei‘s fondness for precise interlocking architecture. Sandblasted steel, smooth upper surface without visible screws, and a domed sapphire crystal give the watch a clean vector. Articulated lugs extend the line of the case, with a concealed spring at 6 o’clock refining the fit. Nothing is gratuitous. Everything resolves toward ergonomics and flow.
Inside, Calibre UR-20.01 treats time as choreography. Three hour satellites orbit a central carousel, advancing along the minute track before exiting stage left. There comes the signature gesture: each satellite opens, its two arms splitting into a V – the “Vulcan salute” – then closing to ready the next hour. The carousel rotates, satellites counter-rotate for legibility, arms pivot on their axes. A lyre-shaped spring governs opening and closing, while Maltese crosses index every move with controlled restraint. Energy management, URWERK’s perennial puzzle, is handled with the brand’s usual clarity.
The technical core is rendered legible through color. Against the blue architecture, the lyre springs and Maltese crosses wear 24K yellow-gilt PVD. It is not flourish but function highlighted – the tension points where energy is stored, metered, and released. A useful reminder that mechanics can be read by eye if one knows where to look.
Specifications remain suitably pragmatic: self-winding UR-20.01 at 4 Hz with 48 hours of power reserve, Swiss lever escapement, 32 jewels, components in beryllium copper, ARCAP, titanium, brass, anodised aluminium, and blue ALD-treated parts. Finishing includes circular and straight graining, sandblasting, Côtes de Genève, and polished screw heads. The case measures 47 mm wide, 44 mm long, 15.8 mm thick, with sapphire crystal and 3 ATM water resistance. It is delivered on a blue Cordura-textured calfskin strap with a satin-brushed steel pin buckle with blue PVD.
The UR-120 Blue Planet does not tease a sequel. For one last time the V flickers under sapphire, a small salute before silence. A fitting end – concise, mechanical, and strangely human.
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