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Urwerk UR-100V Lightspeed Ceramic
The spacetime continuum returns in a striking white case.
Urwerk always surprises, and the new UR-100V Lightspeed Ceramic is the best proof of that. While we've seen similar complications before, this time it incorporates some entirely new material innovations. Let's take a closer look.
It feels like just yesterday we visited Urwerk's headquarters during Geneva Watchmaking Days. Yet, only six months later, we're releasing some new watches we didn't even get to see then. This forward-thinking brand moves swiftly. In fact, today's release is lightning fast. Let's take a look at the new UR-100V.
Urwerk UR-100V Lightspeed Ceramic
Urwerk's latest watch is actually a derivative of one we've seen before. In 2024, my colleague Thomas reviewed the UR-100LS, which first featured this thought-provoking complication. The new UR-100V retains the original's 43mm case diameter, 51.73mm case length, and 14.55mm thickness. It also prioritizes practicality, featuring a screw-down crown and 50-meter water resistance. The watch comes with two textured rubber straps, one black and one white, both with folding clasps.
In fact, the matte black dial and various indicator colors are identical to the original. So, what's the difference? Urwerk developed a new ceramic case that solved a fundamental problem with this material—brittleness. This composite material is essentially glass and carbon fibers embedded within a polymer matrix. The polymer matrix is bright white, while the fibers are silver. Photos may not fully capture the charm of this case, as the contrasting colors give depth to the otherwise slightly plastic-like material.
A spaced-out display. At first glance, the UR-100V Lightspeed Ceramic watch seems to have an inverted movement, with the dial resembling an automatic rotor. However, this is not the case. The brand's signature satellite display is cleverly combined with a retrograde minute display. The hours are displayed on a rotating disc at the bottom of the dial, which runs along the minute arc. Additionally, a blue-green hand connected to the central gear points to the eight planets and indicates the time it takes for light to travel from the sun to them. This hand rotates once every three hours and is hidden below the minute markers for one-third of the time. Could this be considered an abstract complication? Absolutely.
The UR12.02 Movement and the UR-100V Lightspeed Ceramic watch are powered by the automatic UR12.02 movement. The movement is fully visible through the grade 5 titanium and sapphire crystal case back. Despite its slightly industrial design, this is a high-end luxury timepiece. Therefore, details such as circular graining, satin polishing, sandblasting, and shot blasting all highlight its superior quality. In terms of performance, the movement vibrates at 28,800 times per hour and has a 48-hour power reserve.
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Brand: Urwerk
Model: UR-100V Light Speed Ceramic
Dial: Matte black with satellite time display and light speed indicator
Case Materials: This white ceramic case was developed specifically for Urwerk, featuring silvered glass fiber fabric and carbon fiber inserts, with a titanium inner case.
Case Dimensions: 43mm (W) × 51.73mm (L) × 14.55mm (D)
Crystal: Sapphire crystal
Case Back: Grade 5 titanium with sandblasting and PVD coating, featuring a sapphire crystal display secured with four screws.
Movement: UR12.02: Automatic winding with manual winding function, 28,800 vibrations per hour (4 Hz), 48-hour power reserve
Water Resistance: 50 meters
Strap: Textured black rubber strap and white rubber strap with folding clasp
Functions: Time (hours and minutes) and light speed indicator via satellite.
