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  • This Urwerk Watch Started as a Sketch of a Molecule

This Urwerk Watch Started as a Sketch of a Molecule

The UR-300 Time Quantum, among the new releases at WatchTime New York in October, rearranges its hour display every hour. Martin Frei and Felix Baumgartner on where the idea came from.

Justin Mastine-Frost
Justin Mastine-Frost

Oct 27, 2026

•

3 min read

"New inventions emerge, and some eventually become part of URWERK's design language. If an idea is cool enough, it might find its way into another watch. Take the crown protector bar on the UR-210, for example: in a slightly altered form, it is now present on the UR-300 as well," Martin Frei, co-founder and artistic director, told Crown & Caliber.

Photo: Urwerk

Photo: Urwerk

Photo: Urwerk

At the top of every hour, the T-shaped frame inside Urwerk's UR-300 Time Quantum jumps forward and turns, and all of its hour prisms spin at once. The watch was among the new releases at WatchTime New York in Gotham Hall on October 16, a day after Urwerk released it in an edition of 50 pieces (25 in titanium and 25 in AlTiN-treated titanium). The Satellite collection it joins includes the UR-101, one of the two watches Urwerk launched with at Baselworld in 1997.

Urwerk makes no bones about the fact that several of its creations take inspiration from historical relics of horology (the wandering-hours complication found in the early UR-101 and UR-103 is inspired by a 17th-century night clock produced for the pope), but even with this inspiration, the execution is zero parts historical, but rather creations that would be right at home in the universe of Blade Runner, Tron, or The Fifth Element.

This isn't a brand that's in any kind of race to release new models. Some years an existing collection evolves or gets a new reference or two, and others, like this past month, an entirely new model breaks cover. Each new model is an evolution of the timepieces that came before. Frei and Felix Baumgartner, co-founder and master watchmaker, have a very thoughtful and dynamic approach to how they work; some design codes are more fixed than others, as Frei said.

Photo: Martin Frei

Photo: Martin Frei

In the new UR-300 Time Quantum, there's a strong interplay between familiar and new ideas. Multi-sided hour prisms trace back to the brand's collaboration with Harry Winston in 2005 on the Opus 5, a design detail that has carried on throughout Urwerk's history, right up to the UR-230 Eagle that appeared in 2023. That said, its operation is fundamentally different here. With each change of hour, its T-frame structure, composed of what we shall call its crossbar and stem, jumps forward and rotates 72 degrees, bringing the next hour prism into position. What was previously the crossbar of the T pivots around its midpoint and becomes the new stem, coming into alignment with the zero-minute mark. The previous stem rotates in the opposite direction and becomes the new crossbar. At the same time, all the hour prisms spin, and the hour prism at the base of the new stem now displays the next hour.

According to Frei, the UR-300 was spawned from an idea that Baumgartner had dreamed up, and one that,  as is often the case, led to its own share of engineering challenges. "Felix showed me a sketch of a mechanism he had dreamed up, and it looked like a molecule. He explained that his inspiration came from exploring the world of very small things. In this mechanism, he said, the satellites were called electrons. That became my starting point," Frei said, adding, "I realized that this mechanism required the elements to be positioned as close together as possible. Each new mechanism brings its own requirements, so the design process is different every time."

Photo: Urwerk

In Urwerk's announcement of the watch, Baumgartner said, "The world of the atom is fascinating because it exists in a state of constant, temporary equilibrium. Introduce energy into the system and its structure breaks down, reorganizes and shifts into a new state."

While the mechanism itself is a key draw, it's these sorts of changes and innovations that keep brand enthusiasts (myself included) so faithful. From one piece to the next, there's enough change that Urwerk doesn't feel like that kind of "one and done" brand for collectors. The difference in design and construction of the UR-300 Time Quantum and the more round and slender UR-100V, or the bold and brash UR-120 is significant enough that one can pretty quickly justify a desire for multiple pieces.

Photo: Urwerk

Dubai-based collector Paul Blandford owns both the prototype UR-105 T-Rex and a UR-103 AlTiN. "I love that they have a very specific design language; each model is clearly different from the others, but still unmistakably Urwerk," he said, adding, "the designs themselves haven't aged at all either. If a collector didn't know the brand and someone showed them a UR-103, telling them it was the latest release, I think most people would believe it. That's crazy when the watch itself was designed over 20 years ago, and just shows how successful the original design was."

As Urwerk heads into its 30th year in 2027, looking back on the brand's journey thus far raises the question of what comes next.


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NAVIGATION

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SECTIONS

CAUGHT OUR EYE

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GO DO SOMETHING

MY FIRST WATCH

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© 2026 Crown & Caliber. All Rights Reserved.