BIANCHET – ROTONDO UltraFino Tourbillon Rose Gold

 

BIANCHET – ROTONDO UltraFino Tourbillon Rose Gold 2026

A new material can transform far more than the appearance of a timepiece. It can reshape its personality.

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Bianchet introduces Rotondo UltraFino in rose gold. A balanced expression of black and gold tension, ultra-thin mastery, and sculptural expression. Powered by Bianchet Flying Tourbillon calibre UR01 in titanium.

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Bianchet expands its Rotondo UltraFino collection with a new rose gold execution, bringing a warmer, more sculptural interpretation to its signature ultra-thin flying tourbillon architecture. The new references reinforce the Maison’s distinctive design language, where a dynamic tension and the Maison's philosophy "Form Above All" define every curve, facet, and proportion.

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While remaining true to the technical foundation of the UltraFino Rotondo in titanium, the rose gold edition introduces a heightened sense of contrast, refinement, and presence, emphasizing the interplay between precious metal warmth and deep black technical accents.

Between strength and refinement

At ts core, the Rotondo UltraFino Gold is driven by the Bianchet calibre UR01, an extra-thin automatic flying tourbillon movement developed entirely in Grade 5 titanium. The architecture is designed for both visual purity and structural resilience, combining lightness of construction with high mechanical robustness, including shock resistance up to 5,000 G.

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A solid 18K rose gold rotor animates the winding system, adding a warm kinetic signature visible through the skeleton architecture. The movement is further enhanced by a black PVD treatment on the titanium bridges and main structure, reinforcing the monochrome contrast that defines this new interpretation.

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Despite its complexity, the movement weighs less than 8 grams, and measures only 3.85 mm in thickness, enabling the watch to maintain its signature ultra-slim profile of 8.9 mm.

A signature architecture of contrast

The Rotondo UltraFino Gold refines the visual identity oft he collection through a carefully orchestrated interplay of materials, colours and finishes.

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The warmth of the rose gold case is set against the technical depth of the black PVD-treated Grade 5 titanium movement, creating a striking dialogue between precious metal and contemporary engineering. 

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This visual tension is further enhanced by the black rubber gasket beneath the bezel, a distinctive signature found on every Bianchet timepiece, which subtly accentuates the layered architecture of the case while adding a modern technical character. The black lacquered crown completes the composition, reinforcing a monochrome thread that runs throughout the design.

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Together, these elements create a visual language, where black and gold, strength and refinement, emotion and performance exist in perfect balance, and every material serves both an aesthetic and structural purpose.

Form Above All: Geometry as philosophy

The Gold Edition of the Rotondo UltraFino continues to embody Bianchet’s foundational design philosophy, where geometry is not a stylistic choice but a structural language. Under the principle of Form Above All, every curve, angle, and proportion is governed by a pursuit of harmonic balance and architectural clarity.

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The round case, an evolution within the Maison’s design universe, does not dilute this philosophy; instead, it translates it into a more fluid expression. The flowing surfaces are deliberately interrupted by precise linear facets, creating a controlled tension that animates the watch from every angle. This interplay between softness and structure reflects the brand’s concept of Dynamic Tension, where opposing forces are not resolved but held in equilibrium.

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In this sense, the Rotondo UltraFino is less an object of ornamentation than an exercise in spatial composition. The openwork architecture of the movement extends this philosophy inward, ensuring that what is visible is not excess, but essential structure reduced to its purest form.

Haute Horlogerie finishing

Beyond its technical architecture, the Rotondo UltraFino Rose Gold stands as a testament to traditional haute horlogerie craftsmanship applied within a contemporary design framework. Every visible component is treated with an uncompromising level of finishing that elevates the skeletonized construction into a refined mechanical sculpture.

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The case alternates between satin-brushed surfaces and mirror-polished bevels, creating a dynamic interaction with light that emphasizes the geometry of the watch rather than masking it. These finishing techniques are executed with precision to enhance the transitions between volumes, reinforcing the sense of architectural depth.

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Inside the movement, each wheel, each bridge is meticulously hand-finished, with over 30 hours of hand-bevelling dedicated to the bridges alone. This artisanal process ensures that even the most technical components exhibit a soft, luminous edge. An essential hallmark of haute horlogerie finishing.

Dual strap system

Conceived as a highly versatile timepiece, the Rotondo UltraFino Gold adapts seamlessly to different expressions of style through an integrated quick-release system. This system allows the watch to transform its character without compromising its architectural integrity.

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Integrated rose gold bracelet and additional black rubber strap: This configuration pairs the sculptural continuity of the full rose gold bracelet with the technical, sport-oriented presence of a black rubber strap. The contrast between precious metal and high-performance elastomer reinforces the dual identity of the watch—refined yet dynamic, elegant yet contemporary.

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Dual rubber strap set - black and white: This interpretation emphasizes modern versatility and daily adaptability. The black strap expresses the watch’s technical and architectural intensity, while the white strap introduces a lighter, more graphic reading of the design, highlighting the geometry of the case and dial with greater contrast.

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TECHNICAL CHARACTERISTICS

 Model name   ROTONDO UltraFino Tourbillon Rose Gold

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Reference: RDUFFTSKRGBKI - bracelet

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Reference: RDUFFTSKRGBKR -rubber strap

CASE
Material: 18-carat rose gold
Diameter: 39.5 mm
Thickness: 8.9 mm
Water-resistant to 100 meters (10 ATM)
DIAL
Skeletonized architecture with openwork Golden geometry
Aplied hour markers and luminous hands
MOVEMENT
In-house Calibre UR01

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Aufomatic flying tourbillon in Grade 5 fitanium
Height: 3.85 mm
Number of jewels: 29
Number of parts: 225
Frequency: 3 Hz, 21'600 vph
Power reserve of 60 hours
5000 G Shock resistant
Rotor: Solid 18-carat rose gold
Functions 
Hours and minutes
Small seconds via 60-second Ultra-Thin Flying Tourbillon
STRAP 
18-carat rose gold integrated bracelet
Rubber strap system with quick release

🔴PRICE 
Gold version with rubber strap: 85 500 CHF (excl. taxes)💰
Gold version with integrated gold bracelet: 119 500 CHF (excl taxes)💰

Swiss Made

Guarantee: 5 years

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BIANCHET SA
Rue de la Promenade Noire 1
2000 Neuchâtel
Switzerland
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===================================
www.Bianchet.com

BIANCHET – Esteban Ocon New Ambassador

 

BIANCHET – Esteban Ocon New Ambassador 2025

 ESTEBAN OCON, FRENCH F1 DRIVER AND GRAND PRIX WINNER,
BECOMES THE NEW BIANCHET AMBASSADOR

28-year-old Formula 1 star Esteban Ocon, who has multiple podiums and a victory to his name, becomes the newest Bianchet Ambassador ahead of the first Grand Prix of the 2025 season in Melbourne this weekend. 

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The young French driver, who has recently signed with the American team MoneyGram Haas F1 Team, has chosen the Bianchet style—on the track, in the city, or while traveling—for its tourbillon watches that are both sporty and elegant. Timepieces that blend traditional craftsmanship with a constant pursuit of perfection, much like the high-level performance demanded in Formula 1.

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Talented and determined, Esteban Ocon is an example of resilience, having overcome numerous obstacles to reach Formula 1. He quickly built an impressive career, progressing through the junior categories, most notably winning the 2014 FIA Formula 3 European Championship and the 2015 GP3 Series, before making his debut in Formula 1 the following year. 

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Today, Esteban has many F1 podiums to his name including his impressive maiden Grand-Prix victory in Budapest in 2021. With an exciting driving style and consistent race performances, he has established himself as a reliable driver, known for seizing opportunities when they arise.

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It is this talent, precision, and determination that perfectly embody Bianchet’s values, such as sport resilience, elegance in motion, and a rigorous approach to performance. The same performance, in one of the most prestigious and demanding sports, where every detail matters, and innovation serves excellence.

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But also elegance! Passionate in life as he is in motorsport, Esteban Ocon, who instantly identified with the aesthetics and engineering of Bianchet watches was immediately spotted wearing the Flying Tourbillon Sport GMT at the prestigious "F1 75 Live" gala in London last February — an iconic event celebrating 75 years of Formula 1 and the opening of the 2025 season. A historic occasion where enthusiasts gathered to discover the cars and drivers that will define the new season.

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“It is an honor to join the Bianchet family and represent a brand that shares my commitment to precision and performance. The sophisticated design and remarkable engineering of their watches perfectly reflect the spirit of racing: pushing boundaries through constant innovation and the pursuit of excellence,” says Esteban Ocon.

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The exclusive Swiss maison Bianchet is renowned for its tourbillon watches, designed with high-tech materials and artisanal expertise that ensure optimal precision and resistance, even in the most extreme conditions. Combining traditional craftsmanship with a relentless pursuit of perfection, Bianchet’s horological approach mirrors the high-performance standards required in Formula 1.

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With a design at the crossroads of art and technology, the Bianchet B 1.618 Flying Tourbillon Sport GMT embodies the perfect harmony between lightness, robustness, and refinement. Its high-density carbon case, infused with titanium powder, withstands shocks up to 5000G and is water-resistant to 100 meters, showcasing technical excellence. At the heart of its titanium movement, a flying tourbillon ensures absolute precision, while vulcanized rubber straps provide flawless comfort and optimal adaptability.

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“We are delighted to welcome Esteban Ocon to the Bianchet family. His dedication, talent, and pursuit of perfection make him the ideal ambassador for our brand. Together, we will continue to push the boundaries of artisanal innovation and performance,” says Rodolfo Festa Bianchet, CEO and founder of Bianchet.

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With this new collaboration, Bianchet and Esteban Ocon illustrate a shared vision: one of excellence and innovation, where every fraction of a second counts.  

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TECHNICAL CHARACTERISTICS

 Model name:  Flying Tourbillon Sport GMT Tourbillon Carbon Red  B1.618

💰Ref, SKU: CBRFTSG4  

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Manual wound Flying Tourbillon with GMT complication
Power Reserve: 90 hours (+/- 5%)
Water resistance: 10 ATM (100 metres)
Weight: 56 grams (excluding strap)
Swiss Made
Guarantee: 5 years

MOVEMENT
- In-house Flying Tourbillon 60 seconds
- Grade 5 Titanium main plate and bridges.
- Grade 5 Titanium tourbillon cage mounted on ball bearings.
Frequency: 3hz - 21’600 vibrations/hour
- Dual time GMT complication with Night&Day indicator.
- Crown function indicator.
- Balance wheel with variable inertia.
- Adapted to 6 positions.
- 20 Jewels
Finishing:
- Sand-blasted, satin-brushed plates & bridges, with hand-bevelling on titanium parts.
- PVD black finish.
- Lacquer applied by hand. 

Manufacturing Partners:
Inotech
Precision Engineering
Feller
Crelier
Goldec
Bandi
AE Decolletages
Ultradec
Protofil
CMT Rickenbach
Quickparts
GMG
CASE
Materials 
- Titanium-Dust High-Density Carbon. Natural vulcanized rubber.
- Crown in Grade 5 Titanium
 Carbon Red
Dimensions: W: 43 mm L: 51 mm H: 14.35 mm
Crown in grade 5 titanium. 
Middle case in Titanium-Dust-High-Density-Carbon
Besel, case-back, and crown crafted from 18 carat 3N Gold.
Glass: Sapphire crystal on bezel and back with glare-proof treatment on both sides
Water resistance: 10ATM
Finishing
Case finished by hand.
Hand-polished crown.
STRAP
Made of natural vulcanized rubber, the two straps allow to play with the face of the watch
Folding clasp in Grade 5 titanium

🔰Limited Edition ✅ Only 100 Pieces
🔴 Price: 75'500 CHF (excl. taxes) 💰

========================

BIANCHET SA
Rue de la Promenade Noire 1
2000 Neuchâtel
Switzerland
-------------------------------------
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===================================
www.Bianchet.com

BIANCHET – Tourbillon B 1.618 UltraFino Titanium

 

BIANCHET – TOURBILLON B1.618 UltraFino Titanium Edition 2025

 An Emerging Icon in Tonneau Sport Watches.
Ultra-Thin, Exquisitely Crafted, and Engineered for Everyday Elegance.

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Bianchet introduces the B 1.618 UltraFino, an extraordinary expression of artistry and engineering in the world of Haute Horlogerie. With its seamless integration of form and function, the UltraFino redefines the tonneau-shaped sports watch, elevating it to unprecedented levels of elegance and performance. The heart of this timepiece beats with Bianchet’s first automatic flying tourbillon movement, the ultra-thin UT01 caliber, crafted from titanium and designed around the Golden Ratio (1.618).

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Balancing sophistication with technical prowess, the UltraFino merges purity of design, high performance, and an unparalleled level of comfort, making it a distinguished choice for those who seek refined horology that fits effortlessly into daily life.

Where Haute Horlogerie Meets Contemporary Ergonomics

In developing the UltraFino, Bianchet’s objective was not to make the world’s thinnest watch at all costs but to achieve a perfect balance of aesthetics, ergonomics, and resilience. 

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The result is a sleek, curved tonneau case, measuring just 8.9 mm in height and 40 mm in width, designed to conform seamlessly to the wrist with a 1.2 mm curvature from lug to lug. This thoughtful design ensures exceptional comfort, creating an experience where the watch feels like an extension of the wearer.

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While ultra-thin watches often sacrifice robustness, the UltraFino defies convention. It withstands shocks of up to 5,000Gs and water pressure of 5 ATM, offering a rare combination of elegance and wearability. This fusion of strength and refinement makes it an ideal everyday timepiece, proving that Haute Horlogerie can be technically groundbreaking and wearable daily.

An Exquisite Skeleton or an Elegant Dial—Two Expressions of Timeless Design

The UltraFino comes in two distinct yet equally refined versions: an openworked model showcasing the beautifully hand-finished UT01 movement and a dial version featuring the exclusive Golden Diamond pattern, a contemporary reinterpretation of the classic Clou de Paris motif inspired by the Golden Ratio.

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 Both interpretations wear Bianchet's distinctive rubber seam between the bezel and case middle, highlighting the craftsmanship expertise that defines Bianchet’s approach to horology.

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The UltraFino Skeleton reveals the ultra-thin UT01 movement, an engineering marvel measuring just 3.85 mm thick and weighing only 8 grams. One of the very few ultrathin automatic flying tourbillon movements in titanium, it is paired with a gold rotor designed with interlacing Fibonacci spirals, ensuring optimal efficiency and aesthetic harmony. 

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Each angle and transition within the movement architecture has been sculpted to reflect the divine proportions 1.618, reinforcing Bianchet’s dedication to mathematical beauty in design.

Redefining the Integrated Sport Tonneau

While integrated metallic bracelets are often associated with round watches, Bianchet takes a pioneering step by introducing one to a tonneau-shaped case — a rare and demanding feat in watchmaking. The UltraFino’s fully integrated titanium bracelet enhances the watch’s fluidity and ergonomics, following the contours of the curved case to create an unbroken line of sculptural elegance.

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The bracelet’s architecture is not only about aesthetics; it also ensures structural resilience and a supremely comfortable fit, setting a new standard for what an integrated tonneau sports watch can be. A vulcanized natural rubber strap with a titanium deploying buckle offers an alternative styling option, enhancing versatility while maintaining a perfect seamless integration with the case’s rubber seam.

A Celebration of Proportional Perfection

True to Bianchet’s signature style, the UltraFino’s design is a direct tribute to the Golden Ratio. This mathematical principle has guided some of the world’s most outstanding architectural and artistic achievements, such as the Monalisa of Leonardo Da Vinci. 

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The Golden Ratio, present in everything from natural formations to celestial structures, is more than a design choice. This philosophy brings balance, proportion, and a subconscious sense of perfection to every UltraFino timepiece. The interwoven Fibonacci spirals that form the rotor, the precisely calculated contours of the case, and the meticulously crafted dial elements all testify to this commitment to harmony.

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The movement's rear bridges echo this mathematical harmony, embodying two concentric golden circles whose proportions align with the 1.618 ratio. This aesthetic and functional structure provides full peripheral support for the oscillating weight, absorbing shocks in demanding physical conditions while maintaining the highest standards of visual elegance.

A Timeless Fusion of Art and Performance

With the B 1.618 UltraFino, Bianchet reimagines the tonneau sports watch, combining ultra-thin Haute Horlogerie, ergonomic mastery, and modern resilience. Whether in its openworked or dial version, the UltraFino represents the pinnacle of contemporary watchmaking, offering a refined aesthetic and technical excellence in equal measure.

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By adhering to the principles of mathematical beauty and uncompromising craftsmanship, Bianchet redefines what an integrated tonneau sports watch can be—a timepiece as enduring as it is elegant, as sophisticated as it is strong. It celebrates proportion and sleek lines, a testament to fine watchmaking, and a bold statement of high performance.

THE MOVEMENT
Bianchet Caliber UT01

 When Performance and Watchmaking Precision Meet with Finesse,
in Pursuit of the Highest Aesthetic Standards

 

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At the heart of the UltraFino is the Bianchet UT01, a movement that embodies the brand’s quest for technical excellence and artistic precision. It is engineered to withstand extreme conditions without compromising its refined aesthetics.
 

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The fusion of three domains of excellence—artistry, performance, and precision—may seem like an ambitious challenge, but when executed harmoniously, it results in a true feat of mechanical engineering. Bianchet’s ultra-thin and ultra-light automatic tourbillon caliber, weighing 8 grams and measuring 3.85 mm in height, embodies this vision, marrying aesthetics, precision, and cutting-edge performance. 

Mastery in Titanium and Gold  

 

The entire movement is crafted from solid titanium, a material chosen for its noble and lightweight properties and resilience. At the same time, the gold rotor, inspired by Fibonacci spirals, ensures optimal winding efficiency with a visual elegance that is uniquely Bianchet. From the rear bridges to the peripheral rotor, every element within the UT01 caliber is designed according to the Golden Ratio, reinforcing the brand’s philosophy that mathematical harmony results in artistic beauty and mechanical excellence.
 

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One of the rare ultra-thin automatic tourbillon movements, Bianchet's UltraFino caliber is a testament to thinness and high performance. It is achieved through a unique design approach that ensures outstanding efficiency while maintaining a high balance wheel quality factor. The tourbillon cage measures just 2.66mm in height, exceeding industry standards in functional reliability. 

Engineering Challenges and the Achievement of a Collective Vision

 

The development of Bianchet’s new automatic movement posed multiple challenges: optimizing efficiency while maintaining an ultra-flat architecture, ensuring superior shock resistance and chronometric precision suitable for high-intensity physical activities, and preserving the refined aesthetics of Haute Horlogerie components within an extra-thin structure.
 

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More than three years of relentless effort from Bianchet’s team of constructors, engineers, and designers led to the creation of an ultra-thin, ultra-high-performance, ultra-light, and ultra-resistant flying tourbillon movement. This exceptional caliber adheres to the principles of harmony and artistic perfection dictated by the Golden Ratio.

High-Performance Tourbillon and Escapement

 

The escapement architecture has been redesigned to reduce the risk of the balance wheel overbanking and optimize the vertical space occupied by the tourbillon cage. This has ensured optimal efficiency and functional safety margins that exceed industry standards.
 

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By reinterpreting a different escapement stacking solution inspired by an old ultra-flat movement—a reinterpretation made possible and optimized through modern manufacturing techniques—the movement’s height was minimized while maintaining generous safety margins.
 

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The construction of the tourbillon cage in the UT01 automatic movement was also guided by bold aesthetic and structural choices, allowing Bianchet to incorporate the elegance of a large screw balance wheel. With a diameter of 8.90 mm (excluding screws), a frequency of 3Hz, and an inertia of 10 mg·cm², this regulating organ features excellent technical specifications. The ingenuity of its construction also made it possible to maintain a high level of shock absorption, ensuring excellent resilience within an ultra-thin architecture.

Energy Efficiency and Performance Optimization

 

Maximizing energy efficiency in the mainspring barrel is a well-known challenge in an ultra-thin movement. Bianchet’s UT01 automatic movement has maintained a generously sized barrel by ingeniously constructing a suspended barrel. This barrel provides a power reserve of over 60 hours without compromising safety margins or shock resistance.
 

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Similarly, the position of the gear train has been optimized to achieve greater thinness while increasing transmission stability. The alignment angles of the wheels have been calculated to neutralize torque variations as much as possible, thereby reducing differences in the balance wheel's amplitude and ensuring optimal gear efficiency for more stable chronometry.
 

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Bianchet’s proprietary winding and time-setting system features a fixed angular gear transmission with a 90° toothing for improved energy transfer and user comfort. The two-position mechanism includes a pivoting lever that smoothly transitions between winding and time-setting functions, depending on the position of the winding stem.

Haute Horlogerie Finishing

 

The new Bianchet automatic caliber is distinguished by an exceptional level of finishing, enhancing depth and light play through a striking contrast of textures that define its open-worked architecture. The main plate and bridges, crafted from titanium, feature a marriage of soft sandblasted finish that subtly absorbs light with finely satin-brushed surfaces, elevated by delicately hand-polished bevels that catch and reflect every glimmer. 

 

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This subtle dialogue between matte and polished surfaces gives the ultra-thin movement a remarkable three-dimensional presence in an ultra-flat architecture, revealing the full complexity of its construction. The wheels, adorned with a circular satin-brushed finish, contribute to this dynamic, creating a fluid and refined visual effect that draws the eye to the heart of the mechanism.

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Every detail is executed with absolute precision, down to the carefully polished screws, achieving flawless brilliance. The tourbillon cage, entirely beveled by hand, exemplifies this artisanal commitment, highlighting the finesse and elegance of the mechanism. The solid gold rotor showcases a refined contrast between circular satin-brushed surfaces and sandblasted zones. At the same time, the polished bevels accentuate each curve with precision. When the rotor is in motion, this interplay of finishes creates a captivating dance of light, drawing the eye and emphasizing the geometric purity of its design. This harmonious composition gives the movement a dynamic and mesmerizing quality, where fine watchmaking meets mathematical perfection.
 

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Through this pursuit of excellence, Bianchet upholds the noblest expression of high horology, where technical mastery and artistic craftsmanship combine seamlessly.

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About Bianchet 
 
Bianchet embodies the singular union of ultramodern style and a classic design heritage in Haute Horlogerie. The relationship between meaning and culture, mathematics and mechanics is at the heart of Bianchet's thinking, which is to infuse the Golden Ratio 1.618 and transpose the mathematical proportions underlying the harmony and beauty of the universe into the world of modern fine watchmaking.
 
This approach to contemporary Haute Horlogerie finds expression in Bianchet tourbillon watches. The sleek tonneau shape, the exclusive design of the in-house-developed calibre, the Italian aesthetic, the choice of high-tech materials, titanium and rubber, the dynamic use of materials, shapes, textures and colours - everything about Bianchet watches and the Bianchet spirit expresses passion, beauty and modernity.

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TECHNICAL CHARACTERISTICS

Model name:  Tourbillon B 1.618 UltraFino Edition

B 1.618 UltraFino Dial: 55 500 CHF (excl. taxes)💰
B 1.618 UltraFino Skeleton: 60 500 CHF (excl. taxes)💰

MOVEMENT
Automatic movement UT01 in grade 5 titanium and gold
Flying tourbillon 60 seconds
Tourbillon cage in titanium, mounted on ball bearings
Adapted to 6 positions.
Frequency: 3hz - 21’600 vibrations/hour
Titanium main plate and bridges.
Non-magnetic tourbillon cage.
Balance wheel with variable inertia.
Shock resistance 5000G
Finishing:
Hand-finished.
Hand beveling on titanium bridges and tourbillon cage.
Sand-blasting, satin-brushing on plates and bridges.
Lacquer applied by hand on crown, tourbillon cap, and big date. 

CASE
Materials
Case in grade 5 titanium with natural vulcanized rubber.
Crown in grade 5 titanium.
Natural vulcanised rubber.
Finished and assembled by hand.
Finishing
Case finished by hand.
Hand polished crown.
Lacquer applied by hand.
Glass: Sapphire crystal on bezel and back with glare-proof treatment on both sides
Dimensions: W: 40 mm L: 47.39 mm H: 8.90 mm
STRAP
Natural vulcanised rubber
Titanium folding clasp

• Strap 1 in grade 5 titanium.
• Strap 2 in natural vulcanized rubber with titanium folding clasp.

Guarantee: 5 years

🔰Limited Edition ✅ Only 200 Pieces

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BIANCHET SA
Rue de la Promenade Noire 1
2000 Neuchâtel
Switzerland
-------------------------------------
www.facebook.com - BianchetLuxuryWatches
===================================
www.Bianchet.com