Independent Watchmakers · 2026-02-04
Urwerk’s white LightSpeed Ceramic maps sunlight across the solar system
Satellite hours share the display with planetary light-travel times.
By Chronolume digest · Original English summary · Based on MONOCHROME

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What to know
The UR-100V LightSpeed Ceramic combines Urwerk’s wandering hours with a scale showing how long sunlight takes to reach the planets. A moving indicator travels beneath the open structure, adding an astronomical reference to the familiar satellite display. White composite material gives the angular case a different presence from earlier dark executions.
The automatic UR 12.02 provides a 48-hour reserve and is visible through a titanium caseback. The case measures 43mm across, 51.73mm long and 14.55mm thick, with 50-metre water resistance. Introduced in February 2026, this version uses the LightSpeed idea established earlier, with black and white rubber straps offered alongside the pale case.

At a glance
| model | UR-100V LightSpeed Ceramic |
|---|---|
| case | 43 × 51.73 × 14.55mm white ceramic composite, titanium back |
| movement | UR 12.02 automatic |
| powerReserve | 48 hours |
| waterResistance | 50 metres |