URWERK Closes the SpaceMeter Story in Deep Blue

URWERK has never treated time as a simple matter of hands moving around a dial.

With the UR-10 SpaceMeter Blue, the independent watchmaker returns to one of its most poetic ideas, a wristwatch that measures not only hours and minutes, but also the motion of Earth itself.

This final blue edition brings the SpaceMeter concept to a close in a limited run of 25 pieces.

At a glance

A blue finale for the SpaceMeter

The UR-10 SpaceMeter Blue follows the black and titanium-toned versions introduced in 2025, but it carries a more conclusive role within the collection.

URWERK is retiring the SpaceMeter after this edition, making the blue dial not just a new colourway, but the closing statement for the model.

The watch is unusually calm by URWERK standards at first glance.

Its rounded case, integrated bracelet and central syringe-style hands give it a more conventional silhouette than the brand’s satellite-hour pieces.

That sense of familiarity doesn’t last long.

The crown sits at 12 o’clock, and the dial is populated by counters that shift attention from civil time to planetary movement.

The case measures 45.40 mm wide by 44 mm long and uses a sandblasted titanium case middle with a sandblasted steel caseback.

At 7.13 mm high excluding the crystal, it keeps a surprisingly low profile for a watch carrying such an unusual mechanical display.

The dial turns Earth’s motion into wrist-scale mechanics

The UR-10 still tells time through central hours and minutes, but that’s only the beginning of the display.

At 2 o’clock, a counter tracks Earth’s daily rotation at the Equator in 10-kilometre increments.

At 4 o’clock, another counter follows Earth’s orbit around the Sun in 1,000-kilometre increments.

The most visually distinctive indication sits at 9 o’clock, where a double concentric counter combines Earth’s rotation and solar revolution on paired scales.

The back of the watch continues the astronomical idea with a 24-hour display for rotation and revolution.

It’s a reminder that the UR-10 is less interested in reducing time to appointments and more interested in placing the wearer inside a larger celestial rhythm.

The concept has roots in an astronomical clock associated with Gustave Sandoz, an object that helped shape the SpaceMeter’s unusual reading of time and distance.

That link to historic clockmaking matters, because the UR-10 isn’t futurism for its own sake.

It translates an old horological fascination with the heavens into a contemporary independent watch.

Inside the UR-10.01 calibre

The watch is powered by the automatic Calibre UR-10.01, developed around a high-grade base movement in collaboration with Vaucher and fitted with URWERK’s own astronomical module.

It runs at 28,800 vibrations per hour and offers a 43-hour power reserve.

The movement also carries one of URWERK’s familiar technical signatures.

Two patented superimposed turbines with counter-rotating propellers regulate rotor speed through an air-cushion system intended to reduce wear in the winding mechanism.

Through the caseback, the free-sprung balance can be seen working beneath the turbine blades.

The finishing mixes circular graining, straight graining, sandblasting and polished screw heads, giving the mechanical architecture a deliberately technical finish rather than a decorative one.

The integrated bracelet is sandblasted titanium and closes with a titanium folding clasp.

There’s no quick-change system mentioned for the bracelet, but the single-link construction is central to the watch’s smooth, continuous profile on the wrist.

Details & Specifications

The UR-10 SpaceMeter Blue will appeal to collectors who like URWERK’s more conceptual side, especially those drawn to watches that challenge the usual definition of a complication.

It’s not a watch that simply adds more information to the dial.

It changes the frame of reference altogether, turning the wrist into a small mechanical map of Earth in motion.