In 2025, the Parisian company Bell & Ross introduced the BR-X3 model - the third generation of watches with a square case, large sapphire glass, and a skeletonized movement concept.
This model, the BR-X3 Tourbillon Micro-Rotor, was released in a limited series of 25 pieces and cost around $100,000 USD. In 2026, the brand launched a more accessible version, the BR-X3 Micro-Rotor, retaining many design features and an impressive appearance, but costing less than a quarter of the tourbillon's price. Let's take a closer look at the new Bell & Ross model for watch art enthusiasts.
Design and Construction of the BR-X3 Micro-Rotor Case
The BR-X3 case has a square shape with a comfortable width of 40 mm. The case thickness is 9 mm, and the water resistance is 50 meters. The case construction resembles a sandwich: the bottom part is a steel case back, the middle is the brand's signature automatic movement, and the top is a large sapphire crystal that also serves as the bezel. On the wrist, the watch looks striking, while sitting comfortably thanks to well-rounded edges that eliminate sharp angles, ensuring wearing comfort.
Movement and Dial Features
Unlike the BR-X3 Tourbillon with a fully skeletonized movement, the Micro-Rotor version offers a more balanced design for those who do not want to constantly see wrist hair through a transparent case. The movement is partially open: the micro-rotor automatic winding section and individual elements are visible, but much of the dial is covered by sturdy bridges, designed in the style of Piet Mondrian with characteristic horizontal and vertical line intersections. The watch lacks hour markers, but the luminescent-coated hands are easily readable in any conditions.
Technical Characteristics of the BR-CAL.390 Movement
The movement is not fully produced within Bell & Ross, but it is not an off-the-shelf model either. The caliber BR-CAL.390 is created specifically for the brand and operates at a frequency of 4 Hz with a power reserve of 48 hours. Through the transparent dial, one can observe the balance wheel, rotating micro-rotor, and skeletonized mainspring barrel. The latter allows users to visually assess the degree of spring wind, serving as a simplified power reserve indicator - a convenient feature for daily use.
Ergonomics and Visual Perception on the Wrist
The 40 mm square case does not appear overly large, but has a strong presence on the wrist. Bell & Ross focuses on ergonomics: shortened lugs, absence of sharp edges, and a thin case profile make the watch comfortable for extended wear. In this regard, the BR-X3 Micro-Rotor is a more elegant and less sporty version of the BR-03, with an emphasis on the artistic component of the design.
Position of the BR-X3 Micro-Rotor in the Bell & Ross Model Range
While Bell & Ross is known for its sports watches, its experimental and artistic models are no less in execution and design. The brand is intriguing for its dual nature: on one hand, it resembles Tudor, and on the other - Ulysse Nardin. This multifacetedness may seem unusual, but it is precisely what makes Bell & Ross a deep and versatile brand, deserving of the attention of experts and collectors.
Strap and Limited Edition of the Model
The BR-X3 Micro-Rotor comes with a tapered grey alligator leather strap. The grey-silver color scheme of the model is versatile and pairs well with most shades of clothing. Possibly, Bell & Ross will release brighter options in the future, but the grey palette remains practical and stylish. The model is limited to 99 pieces - significantly more than the tourbillon version. The retail price of the BRX3M-MR-ST/SCA is $22,500 USD.
Key Advantages of the Bell & Ross BR-X3 Micro-Rotor
- Unique design with a square case and large sapphire glass
- Proprietary automatic movement BR-CAL.390 with micro-rotor and 48-hour power reserve
- Ergonomics: comfortable wear due to rounded edges and thin case
- Artistic dial design in the style of Piet Mondrian
- Limited edition of 99 pieces for collectors
The Bell & Ross BR-X3 Micro-Rotor combines innovative watch artistry and practicality, making it appealing to professionals and enthusiasts who appreciate design and technical excellence.