Skip to main content
October 15, 2026Independent Watch Journalism Since 2006Newsletter  |  Search
Haute Time Collectors Club Free membership · the weekly watch brief, release alerts and invitations Join ›
Haute Time  ›  News  ›  Ulysse Nardin Freak [S Howlite] Is Made Only…
News

Ulysse Nardin Freak [S Howlite] Is Made Only for North America

Ulysse Nardin marks 25 years of the Freak with the Freak [S Howlite], a 15-piece North America exclusive with a Canadian howlite hour disc.

Ulysse Nardin Freak [S Howlite] Is Made Only for North America
The Ulysse Nardin Freak [S Howlite], with its natural howlite hour disc beneath the flying carouselPhoto Credit: Ulysse Nardin

Ulysse Nardin is marking 25 years of the Freak with a watch North America gets all to itself. The just-unveiled Freak [S Howlite] is limited to 15 pieces, and it sets howlite, a material the Manufacture has never used before, under the dual-oscillator Freak S movement. Each hour disc is cut from Canadian stone with its own gray veining, so no two of the 15 watches are alike.

The Haute Minute

The Ulysse Nardin Freak [S Howlite] is a 15-piece North America exclusive marking the Freak's 25th anniversary. It pairs the dual-oscillator caliber UN-251 with a natural howlite hour disc, in a 45mm titanium case priced at $190,700 excluding tax.

Ulysse Nardin Freak S Howlite dial-side view showing the white howlite hour disc with gray veining beneath the flying carousel
The Ulysse Nardin Freak [S Howlite], with its natural howlite hour disc beneath the flying carouselPhoto Credit: Ulysse Nardin
This is a double anniversary. Founded in Le Locle in 1846, Ulysse Nardin turns 180 this year, and the Freak turns 25. When it arrived in 2001, the Freak had no dial, no hands, and no crown—the movement itself told the time, and its pioneering use of silicon challenged long-established conventions. The Maison calls it “a true UFO in the traditional Swiss watch industry,” which barely overstates it.

A quarter-century on, the Freak has become what Ulysse Nardin calls “a true laboratory on the wrist,” with 35 patents and 17 calibers to its name. In 2023, the Grand Prix d’Horlogerie de Genève gave the Freak [ONE] its Iconic Watch Prize. The brand hasn’t slowed down for the anniversary, either, moving from the Super Freak at Watches & Wonders to a more wearable take on the Freak and enamel and guilloché on the Freak [ONE]. Of everything so far, the Howlite is the most intimate chapter, and the one closest to home for North American collectors.

Introducing the Freak [S Howlite]

The Freak S is the most ambitious branch of the family tree. Introduced in 2022, it took the Freak into three dimensions: roughly 95 percent of the movement’s components are in motion, so the watch never looks the same twice. Architecture like that asks a lot of whoever builds it, and each Freak [S Howlite] is assembled from start to finish by a single Grandes Complications watchmaker at the Manufacture in Switzerland.

Ulysse Nardin Freak S Howlite front view in a 45mm gray titanium case on a white textured rubber strap
The Freak [S Howlite] in its 45mm gray titanium casePhoto Credit: Ulysse Nardin
Reading the time takes a minute to learn, and that’s the point. The 373-component Manufacture caliber UN-251 is a flying carousel that rotates around its own axis once every 60 minutes, with a pointer at the tip of the baguette-shaped movement marking the minutes. Below it, a rotating hour disc with its own pointer makes a full turn every 12 hours. Fitting all of this in takes six gear planes, where most mechanical watches use two.

The way it keeps time is stranger still. Two oversized silicon oscillators, each inclined at 20 degrees, beat at 18,000 vibrations per hour with silicon balance wheels and DIAMonSIL® escapements. Linking them is what Ulysse Nardin says is the world’s smallest vertical mechanical differential, a 47-part component with six ceramic ball bearings that averages the rate of the two oscillators.

Silicon has been in the Freak’s DNA since 2001. The ten in-house silicon components in this movement, balance wheels and hairsprings included, are produced at Sigatec, the brand’s silicon lab in Sion. DIAMonSIL®, patented in 2007, adds a diamond coating to the escapements, which are designed to withstand more than 150 million impacts a year.

Close-up of the Ulysse Nardin Freak S Howlite showing two inclined silicon oscillators above the howlite hour disc
The two inclined silicon oscillators and vertical differential of the caliber UN-251Photo Credit: Ulysse Nardin

Then there’s the crown—or rather, there isn’t one. To set the time, you unlock a safety lock at 6 o’clock and turn the bidirectional bezel. To wind it by hand, you flip the watch over and turn the caseback counterclockwise with both thumbs, feeding energy straight to the barrel through the patented Grinder® system.

Grinder® first appeared in 2017 in the Freak InnoVision 2 concept watch, built to feed a hungry dual-oscillator movement, and here it delivers a 72-hour power reserve. Winding a Freak this way becomes a small ritual, and in our view, it’s half the fun of owning one.

Ulysse Nardin Freak S Howlite open sapphire caseback with the Grinder automatic winding system
The open sapphire caseback of the Freak [S Howlite], turned by hand to wind the Grinder systemPhoto Credit: Ulysse Nardin

The Howlite Hour Disc

The stone is where this edition earns its North American passport. Howlite is a naturally occurring white mineral with distinctive gray-to-black veining, first discovered in Nova Scotia in 1868 by the Canadian chemist and geologist Henry How, after whom it was named. For the Freak [S Howlite], it was sourced in Canada and crafted in Switzerland. Putting a Canadian mineral in a watch made only for this continent is a neat bit of storytelling.

It wasn’t an easy material to tame. Howlite is relatively soft and delicate, so the raw stone was core-drilled and wire-cut into thin discs, and every slice was inspected for whiteness, veining, and overall character. About 60 percent didn’t make the cut. The survivors were brought to their final thickness, polished, and finished with a protective varnish that keeps the mineral’s natural look while meeting the tight tolerances of the Freak S movement.

Ulysse Nardin Freak S Howlite on its white ballistic-textured rubber strap
Each howlite hour disc carries its own gray veining, so no two of the 15 watches are alikePhoto Credit: Ulysse Nardin

It was worth all the trouble. Against that marble-like white surface, the flying carousel, the two inclined oscillators, and the differential seem to float above the hour disc, and the movement’s three-dimensional depth becomes far easier to read. Our take: pale stone is a smarter backdrop for this movement than any lacquer could be. It gives each watch a fingerprint, then gets out of the way of the mechanics.

The rest of the package is made to be worn. The 45mm case, bezel, locker, and caseback are all gray titanium, which Ulysse Nardin notes is about 45 percent lighter than steel, and the caseback opens onto the movement through sapphire. The watch has a perceived height of 13.66mm (16.65mm overall) and is water-resistant to 30 meters. It comes on a white rubber strap with a ballistic texture and a titanium folding buckle—a sporty finish that suits the stone better than you might expect.

Profile of the Ulysse Nardin Freak S Howlite titanium case marked 1/15
The Freak [S Howlite] is limited to 15 pieces, available exclusively in North AmericaPhoto Credit: Ulysse Nardin
The Freak [S Howlite], Ref. 2513-500LE-9A-HOW/3A, is limited to 15 pieces, available exclusively in North America, and priced at $190,700 excluding tax. Twenty-five years after the Freak did away with the dial, Ulysse Nardin has found a way to bring one back—cut from a stone that took millions of years to form.

SpecificationDetail
Reference2513-500LE-9A-HOW/3A
MovementManufacture caliber UN-251, automatic
FunctionsHours, minutes
ArchitectureFlying carousel movement rotating around its own axis
RegulationTwo 20-degree-inclined oversized oscillators with silicon balance wheels and DIAMonSIL® escapements
DifferentialVertical differential with ball bearings
WindingGrinder® automatic winding system, blades technology
Components373 components, 33 jewels
Frequency2 x 2.5 Hz (2 x 18,000 vph)
Power reserve72 hours
Case45mm gray titanium case, locker, bezel, and caseback
CasebackOpen sapphire
Height13.66mm perceived, 16.65mm overall
Water resistance30 meters
Hour discNatural howlite, individually cut from mineral sourced in Nova Scotia, Canada
StrapWhite "ballistic" textured rubber
BuckleTitanium folding buckle
Limited edition15 pieces, North America exclusive

Timely FAQs

What is the Ulysse Nardin Freak [S Howlite]?
A 15-piece limited edition of the Freak S, Ref. 2513-500LE-9A-HOW/3A, made exclusively for North America to mark the Freak's 25th anniversary and Ulysse Nardin's 180th year. Its hour disc is cut from natural howlite, a material the Manufacture had not used before.
How many Freak [S Howlite] watches are being made?
Ulysse Nardin is making 15 pieces, available exclusively in North America. Because each howlite disc has its own veining, no two are identical.
How much does the Ulysse Nardin Freak [S Howlite] cost?
The Freak [S Howlite], Ref. 2513-500LE-9A-HOW/3A, is priced at $190,700 excluding tax.
How do you read the time on the Freak [S Howlite]?
It has no conventional dial or hands. The flying carousel movement rotates once every 60 minutes, and a pointer at the tip of the baguette-shaped movement marks the minutes. Beneath it, a howlite hour disc with its own pointer rotates once every 12 hours to show the hour.
What movement powers the Freak [S Howlite]?
The Manufacture caliber UN-251, an automatic flying carousel movement with 373 components and 33 jewels. Two oversized silicon oscillators, each inclined at 20 degrees, beat at 2 x 18,000 vph (2 x 2.5 Hz) and are linked by a vertical differential, which Ulysse Nardin says is the smallest of its kind. The Grinder® automatic winding system gives a 72-hour power reserve.
What is howlite, and where does the Freak [S Howlite]'s come from?
Howlite is a naturally occurring white mineral with gray-to-black veining, first discovered in Nova Scotia, Canada, in 1868 by the chemist and geologist Henry How, after whom it is named. The howlite for this watch was sourced in Nova Scotia and cut and finished in Switzerland.
How is the howlite hour disc made?
The raw stone is core-drilled and wire-cut into thin discs, and each slice is inspected for whiteness, veining, and character. About 60 percent are set aside. The selected discs are brought to final thickness, polished, and coated with a protective varnish so they meet the tolerances of the Freak S movement.
How do you set and wind the Freak [S Howlite]?
There is no crown. The time is set by unlocking the safety lock at 6 o'clock and turning the bidirectional bezel. To wind it by hand, you turn the watch over and rotate the caseback counterclockwise with both thumbs.
How big is the Freak [S Howlite], and is it water-resistant?
The gray titanium case is 45mm in diameter, with a perceived height of 13.66mm (16.65mm overall), an open sapphire caseback, and water resistance to 30 meters. It comes on a white "ballistic" textured rubber strap with a titanium folding buckle.
Who assembles the Freak [S Howlite]?
Each piece is assembled from start to finish by a single Grandes Complications watchmaker at the Ulysse Nardin Manufacture in Switzerland.
Adrienne Faurote
Adrienne Faurote
Editor in Chief · Haute Time
As a former New Yorker, now a “Miamian,” Adrienne Faurote joined Haute Living in August of 2021. She currently serves as the Haute Media Group Editor-in-Chief, overseeing all editorial platforms within the Haute Media Group while also maintaining her role as Fashion, Jewelry & Watch Director. Prior to her position at Haute Living, Faurote was the Market Editor at Marie Claire Magazine US, amassing over ten years in the industry, becoming an authoritative voice in all things fashion, jewelry, and watches.
Haute Time Collectors Club

The watch brief, every week. Free.

New references, auction results and the stories behind them — written for collectors, sent once a week.

Become a member