L’Impétrant is a bold debut from Stéphane Pierre, blending architectural design and mechanical artistry into a striking first statement!

Stéphane Pierre, an engineer turned watchmaker, marks the debut of his company with the launch of the brand’s first in-house developed calibre, and sets the tone for its design philosophy almost immediately with the L’Impétrant. Rather than going down the simple design route, Stéphane Pierre wanted to showcase his engineering background with an ambitious double retrograde layout for both the hours and minutes display. Paired with a dial-side balance wheel, the dial is true to the engineering art form of skeletonisation, whereby the raw purity of the movement is on display for all to enjoy!

Before launching his brand, Stéphane Pierre built a career shaped by both engineering and technical industry experience. He trained first in mechanics and then in micro-mechanical engineering in Besançon, later working with a subcontractor for the Swatch Group before spending several years in the naval and military sector. That background helps explain why L’Impétrant feels so mechanically bold from the outset, with its strong architectural layout, visible movement elements, and clear emphasis on technical construction rather than purely decorative design.

Stéphane Pierre L’Impétrant

And this engineering influence is clear the moment the watch comes into view. The openworked presentation is not only just the for the dial side, but also the caseback, where we are once again treated to more exceptional craftsmanship, showcasing the mechanics of the manual-wound movement, alongside an unorthodox power-reserve display and a stylish constant seconds display. This is certainly a bold and technically expressive debut, one that introduces Stéphane Pierre as a name clearly intent on making an impression from the very beginning.

An Architectural Frame For High Watchmaking

The case design of L’Impétrant is a strong reflection of the watch’s overall philosophy, where the technical construction of the case and its visual expression work hand in hand. It is crafted from grade 23 titanium, making it extremely lightweight. And with case measurements of 39mm x 10.8mm thick, it is pleasant to wear on the wrist, thanks to its smart proportions to cater to a wider audience, as well as being durable and lightweight thanks to the titanium material.

The case also features varied finishing techniques, from vertical brushing for the top surfaces, horizontal brushing for the side profile, and then polished finishing for the domed bezel and chamfered edges of the case. All these details lend nicely to highlighting the craftsmanship on the titanium case, elevating its industrial look to one of technical sophistication. Rather than feeling cold or overly utilitarian, the varied finishing allows the case to take on a far more dynamic character, showing that even with a material like titanium, Stéphane Pierre has been able to create something that feels both highly engineered and visually refined.

But that’s not what the highlight of this case design is. As you can see from the offset, it follows the dial’s skeletonised structure. That engineering-led thinking behind this timepiece becomes even more apparent in the construction itself. The case is made up of 28 components and features a hollowed-out caseband that enhances its layered, almost skeletal-like appearance. It is this construction that gives the case such a distinctive presence, making it feel less like a housing for the movement and more like a continuation of the mechanical story itself.

Mechanical Art In Full View

Skeletonised dials are some of my favourite designs in watchmaking. Being an engineer myself, I love seeing the technicality of the movement in full view, from the gear-train, balance wheel, and the raw form of the mechanisms in action. So it’s quite easy for me to say that I am in love with this design!

The dial of L’Impétrant is where Stéphane Pierre’s engineering mindset truly comes to life. Rather than relying on a traditional closed dial layout, the watch embraces skeletonisation in a way that feels purposeful, but with a bold design that allows the movement itself to become a central part of the display. The double retrograde indication for the hours and minutes immediately gives the watch a distinctive identity, while the large hands and zirconia sectors help ensure the time remains readable despite the complexity of the layout.

What makes the dial so compelling is the way Stéphane Pierre has executed its construction, balancing mechanical theater with visual structure. Firstly, the different elements work beautifully together to complete the industrial look of the timepiece, while also elevating it through the careful use of colour. The movement plates are presented in an anthracite-grained finish, which gives the watch a darker, more technical foundation, while the exposed gear components and rose-gold-toned elements bring contrast and warmth to the display. This interplay between darker structural parts and brighter functional details shows the careful consideration of the little details, allowing the right components to take the limelight!

Turn It Over, The Story Continues

Turn the L’Impétrant over, and the poetic mechanical display continues with just as much extravagance as the dial. The view from the transparent caseback is another beautiful representation of the movement’s architecture, where the gear train is made visible with two additional indications being integrated into the display.

The most prominent of these is the small seconds. Shown on the bottom part of the dial, the small seconds are displayed against a zirconia sub-dial, adding another layer of animation to the watch. Alongside this sits the power reserve display, which is far from conventional in its execution, using a ruby cone and follower system to indicate the remaining autonomy of the movement with a greater sense of artisanal complexity.

What makes the caseback especially compelling is the level of thought that has gone into both the construction and finishing of these components, from the polished inward and outward angles, hand engraving, a grained and sandblasted main plate, and satin-finished bridges, a ruthenium-plated frosted baseplate, to the gold jewel settings. This certainly makes the case back just as visually stunning as the dial side, making it not feel like a secondary view of the watch.

Engineering In Motion

Powering the L’Impétrant is Stéphane Pierre’s first in-house developed calibre, a dual-retrograde manual-wound movement. A calibre that feels as every bit ambitious as the watch’s exterior design showcases. The movement operates at a frequency of 3Hz, while offering a power reserve of 70 hours. Stéphane Pierre states that “calibre combines a free-sprung 11.5 mm balance with four masselottes, a Breguet overcoil, and a Maltese cross stop-work to help maintain stable chronometry across the power curve.”

What makes this movement especially impressive, however, is not just its technical specs, but rather the way the movement has been integrated as part of the timepiece’s visual identity. With the open-architecture of the dial and caseback, showcasing the various components alongside the bi-retrograde display, all working together to turn the movement into the central highlight of the timepiece.

Initial Thoughts

For a debut release, the l’Impétrant makes a seriously good impression. The name of the watch is also quite fitting, with the term “l’Impétrant” being a name that is given to a young submariner who has yet to prove himself to his larger team, meaning that Stéphane Pierre is yet to make a name for themselves within the extensive world of watchmaking. But if this first release is anything to go by, I can’t imagine the brand having too much trouble trying to find its footing.

The l’Impétrant has what I love about watchmaking. From the skeletonised dial layout, double retrograde display, to the architectural case construction, every detail about this watch is carefully thought out, and has been created with a clear identity in mind. The industrial character of the watch is also balanced nicely by the warm metallic tones and carefully considered finishing, which stop it from feeling too cold or purely technical.

As an opening statement for the brand, the L’Impétrant is ambitious, bold, and certainly full of personality. Exactly the kind of debut that gets people paying attention!

Stéphane Pierre “l’Impétrant”

Reference & Specifications

FeatureSpecifications
Reference “l’Impétrant”
Dimensions39mm x 10.8mm thickness
CaseGrade 23 Titanium with brushed and polished surfaces
CrystalDomed sapphire crystal with anti-reflective coating
DialSkeletonised dial with bi-regtograde jumping hours/minutes. Balance wheel at 6 o’clock.
CasebackSkeletonised movement showing power reserve indicator via vertical cone + back hand, Maltese cross stopwork & small seconds.
MovementManual-wound calibre, beating at a frequency of 3Hz (21,600 VpH)
FunctionsBi-retrograde display for hours & minutes. Power reserve indicator and small seconds on caseback.
Power Reserve70 hours
Water ResistanceUnknown
StrapCalf leather with a titanium clasp.

International Recommended Retail Price: CHF 84,000

Availability: Limited “souscription” series of 15 timepieces featuring a two-tone zirconium and rose gold case. 50 pieces are made from grade 23 titanium. For more information, please head to Stephanepierre.com

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