Displaying the intricate rhythm of the Gregorian calendar on the dial of a mechanical watch has been one of the greatest challenges in fine watchmaking. IWC Schaffhausen embarked on this journey over 40 years ago. In 1985, the Da Vinci Perpetual Calendar Chronograph (Ref. IW3750) introduced the world to the genius of Kurt Klaus. With his ingenious crown-controlled perpetual calendar, the legendary watchmaker defined this complication for decades. Inspired by his pioneering spirit and bold vision, the next generation of engineers at IWC is now building on Kurt Klaus’s legacy and carrying it into the future with the new Perpetual Calendar, IWC-ProSet™.

“The Perpetual Calendar ProSet is a testament to the comprehensive expertise that our watchmakers and engineers have accumulated in mechanical calendar complications. Protected by several patent applications, this groundbreaking innovation radically redefines how a perpetual calendar is set and operated. Its fully synchronised design is entirely based on gears and makes adjusting the calendar forward and backward as easy and intuitive as setting the time.”

Chris Grainger-Herr, CEO of IWC Schaffhausen

The Perpetual Calendar ProSet is presented in three versions. 

• The Big Pilot’s Watch Perpetual Calendar ProSet Le Petit Prince (Ref. IW339601) features a 43-millimetre white zirconium oxide ceramic case and a deep blue dial with a gradient finish. The numerals and indices are printed in white on the dial, while the hands are rhodium-plated and filled with Super-LumiNova®. This watch is fitted with a white rubber strap featuring the EasX-CHANGE® system. 

• The Big Pilot’s Watch Perpetual Calendar ProSet Le Petit Prince (Ref. IW329601) features a 42-millimetre stainless steel case and 5-link stainless steel bracelet with EasX-CHANGE® system. The deep blue dial is complemented with rhodium-plated appliques for the indices and numerals, while the hands are also rhodiumplated.

• Both the appliques and the hands are filled with Super-LumiNova®. This watch comes with an additional blue rubber strap. With the integrated EasX-CHANGE® system, the metal bracelet can be exchanged for the rubber strap quickly and easily without any tools. Both models feature stainless steel crowns and stainless steel case back rings with an engraving of “Edition Le Petit Prince”. As a charming reference to Antoine de Saint-Exupéry’s most famous novel, the rotor of the automatic winding system boasts a gold-plated medallion depicting the Little Prince on his asteroid. 

• The Big Pilot’s Watch Perpetual Calendar ProSet (Ref. IW329602) features a 42-millimetre 18-carat 5N gold case, crown and case back ring. The precious metal is paired with a dark olive green dial. The applied gold indices and numerals, and the gold-plated hands, are filled with SuperLumiNova®. This watch is fitted with an olive green buffalo leather strap with an 18-carat 5N gold pin buckle.

Forward And Backward Calendar Adjustability 

Like Kurt Klaus’s original mechanism, the Perpetual Calendar ProSet automatically accounts for varying lengths of months and adds a leap day every four years. While the dial maintains its familiar appearance, the internal mechanics have been completely overhauled. Engineered from the ground up with forward and backward adjustability in mind, the Perpetual Calendar ProSet is based entirely on gears with multiple functional layers and flexible, extendable and retractable fingers. This innovative new approach makes it possible to adjust the calendar in both directions using a single position of the crown. There is no need for separate corrector buttons, changes of crown positions or having to follow complicated setting menus. These adjustments can be made via the patented quick-correction function, moving the displays in precise daily steps. 

Moon Phase With an Enhanced Accuracy Of 1040 Years 

For the Perpetual Calendar ProSet, IWC’s engineers recalculated the reduction gear leading to the moon phase display. As a result, the indicator deviates from the moon’s actual orbit by just one day every 1,040 years. IWC’s signature Double MoonTM shows the phase of the moon as seen from the northern and southern hemispheres. Each night around midnight, the synchronised switching sequence advances the date, weekday and moon phase. At the end of a month, the month display is advanced by one position, and after twelve months, the year is moved forward. The four-digit year display, a hallmark of IWC’s perpetual calendars, is located between 7 and 8 o’clock. 

A Smart Mechanical Programme Adjusts the Month Lengths 

In months with fewer than 31 days, the mechanical programme of the calendar comes into play. All adjustments are governed by a complex geometry arranged across several layers within the programme wheel. The month length wheel contains different elevations to provide information about the lengths of the months. In shorter months, its unique shape triggers the extension of flexible fingers. When these fingers are extended, the 24-hour wheel engages not one but several teeth during its nightly switching sequence, ensuring that the calendar advances directly to the 1st of the next month. At the end of February, the leap year wheel, which completes one revolution every four years, indicates whether it is a leap year. This information is also transmitted through a finger: in regular years, the finger is extended, while it remains retracted in a leap year. 

Micro-Engineering Enables Highly Complex Geometries 

Components such as the 24-hour wheel, the programme wheel, the month length wheel or the moon phase gears feature intricate geometries and must be manufactured with the highest precision. To achieve this, IWC utilises the advanced LIGA process. This micro-structuring technique combines lithography, electroplating and moulding. It enables the manufacturing of highly complex shapes and intricate geometries with previously unattainable levels of precision. Another significant advantage of this process is the capability to integrate multiple functional layers into a single component. 

Precise And State-Of-The-Art Automatic Calibre 

The calendar module has been integrated into the IWC-manufactured 82665 calibre, which is equipped with a nickel-phosphorus escapement and a silicon hairspring. The highly efficient Pellaton winding system uses movements of the oscillating mass in both directions to wind the mainspring. Components of the winding system that are subject to high stress, such as the automatic wheel or the clicks, are manufactured from virtually wear-free zirconium oxide ceramic. The movement is elaborately finished and decorated with circular graining and Geneva stripes. On all three new watches, the movement can be viewed through the transparent sapphire glass case back.

The post IWC Schaffhausen Redefines Perpetual Calendars With IWC-Proset™ first appeared on Top 10 of Indonesia.

Maserati and Bianchet, the Neuchâtel-based Swiss maison of haute horlogerie, announce a special collaboration in the name of the philosophy they have always shared: passion for beauty that never gives in to compromises, mechanical rigour and artisan tradition, all expressed through balance and precision. To mark the centenary of the iconic Trident emblem inspired by Bologna’s Fountain of Neptune – which made its first appearance on the Tipo 26 when it came in victorious at the Targa Florio – Maserati and Bianchet present UltraFino Maserati, the Flying Tourbillon watch available in a limited collection of 100 one-of-a-kind timepieces, unveiled at the Watches and Wonders 2026 trade fair in Geneva.

A Meeting of Two Philosophies

The convergence of Maserati and Bianchet serves as the natural, inevitable union of two trajectories that have long run in parallel.

Founded in Bologna in 1914 and now headquartered for over 80 years in Modena, Maserati translates racing passion into cars that embody performance, comfort and typically Italian style. The Nettuno V6 engine, an in-house development featuring an innovative pre-chamber combustion system with dual spark plugs drawing directly from Formula 1 technology, epitomises the brand’s vision: extreme performance and refined elegance.

Bianchet – rooted in Neuchâtel and with its manufacturing base in La Chaux-de-Fonds, the cradle of Swiss haute horlogerie – has embraced a similar and equally rigorous vision since its foundation. Its approach is governed not only by engineering ambition but also by explicit aesthetics: each timepiece is designed in accordance with the principles of the Golden Ratio, so that beauty and proportion become structural, intrinsic qualities of the piece. A philosophy in which function follows form and in which the architecture of the movement satisfies the eye as much as it does its designers.

UltraFino Maserati is therefore the meeting point of these two philosophies: a perfect balance between form and function.

Mcpura and Ultrafino: Two Objects, One Soul

The UltraFino Maserati design draws its inspiration from the Maserati MCPURA: the brand’s latest supercar, unveiled at the 2025 Goodwood Festival of Speed and made in Modena. Powered by a 630-hp twin-turbocharged 3.0-litre Nettuno V6 and built around a carbon-fibre monocoque, Maserati MCPURA can achieve 0-100 km/h in under 2.9 seconds, a figure that speaks less of brute force than of the mastery of weight, balance and material science. Thanks to a its lightweight construction and meticulous hand-finishing at the Viale Ciro Menotti plant, Maserati MCPURA is the expression of engineering as a form of art. A car that embodies over 100 years of Italian racing heritage and channels it into something contemporary and uncompromising.

The parallels between the watch and supercar are deliberate and precise: the open-worked skeleton dial of UltraFino Maserati takes its visual language from the birdcage-design wheel architecture of MCPURA, with its iconic triple split-spoke design forming a trident motif. The AI Aqua Rainbow finish, which made its debut on MCPURA at Goodwood and belongs to Maserati’s Fuoriserie Collezione Futura programme, infuses the watch dial and runs as a signature accent along the rubber seam of the case, creating the same prismatic depth on the wrist that the car achieves at road speed. The grade 5 titanium bridges and main plate, the high-density carbon case and bracelet, all mirror the torsional stiffness of MCPURA’s carbon fibre chassis, while the flying tourbillon cage – open, visible, suspended – evokes the beating heart of the Nettuno engine.

Where the MCPURA relies on its carbon-fibre chassis to ensure high levels of torsional rigidity whilst absorbing the demands of the road, UltraFino Maserati addresses the equivalent challenge of shock in mechanical watchmaking. Dedicated shock-absorbing solutions have been integrated at both the balance wheel and structural levels, enabling the movement to withstand forces of 5,000 G, an exceptional specification that draws a direct parallel with MCPURA’s suspension engineering and electronic traction management.

Where Engineering Meets Design

The beating heart of UltraFino Maserati is the Bianchet UT01 calibre. Entirely finished by hand: sand-blasted, satin-brushed and polished, with hand-bevelling on every bridge, on the main plate and on the tourbillon cage, the UT01 calibre represents a series of original engineering decisions, each made at the service of a challenging thin profile of 3.85 mm. The suspended mainspring barrel eliminates the traditional ratchet wheel, recovering vertical space while delivering a 60-hour power reserve. A 2.66-mm thin tourbillon cage houses a large screw balance wheel with variable inertia, beating at 3 Hz, which preserves both the visual presence of a generous escapement and the functional safety margins demanded by a wearable instrument. A bespoke winding and time-setting architecture reduces friction and refines energy transfer throughout the gear train.

The result is a movement of 225 components and 29 jewels, finished entirely by hand, within a total case height of 9.9 mm. The case is constructed in high-density carbon fibre with vulcanised rubber, and the hand-finished crown is protected by integrated carbon crown-guards. Both the bezel and case-back are fitted with glare-proof sapphire crystal. Water resistance is also guaranteed up to 5 ATM. Two straps have been imagined for UltraFino Maserati: an integrated high-density carbon-fibre bracelet, and a natural vulcanised rubber strap with a titanium folding clasp. The timepiece weighs 36 g without the strap, with every detail reflecting the rigour that defines this work of haute horlogerie.

A Limited Edition of 100 Pieces

UltraFino Maserati is presented in a limited of 100 timepieces, a number chosen to echo the centenary of the Maserati Trident. Each piece is individually numbered and produced at Bianchet’s atelier in La Chaux-de-Fonds to the standard of hand-finishing and precision that defines the brand.

Cristiano Fiorio, Maserati Chief Marketing Officer and BOTTEGAFUORISERIE General Manager, adds: “With Bianchet, we share a concept: creating objects where iconic design, elegance and authentic performance co-exist in a perfect balance. UltraFino Maserati embodies this harmony: a distinctive aesthetic, based on our iconic heritage and our sporting DNA, transformed into a sophisticated form of elegance that speaks the language of our unmistakable Trident logo, 100 years after its first appearance on one of our cars.”

Rodolfo Festa Bianchet, Founder and CEO of Bianchet, says: “Bianchet and Maserati are built on the same foundation: the certainty that engineering at its highest level is inseparable from beauty. UltraFino Maserati is not a watch inspired by a car. It is the meeting point of two objects that speak the same language, and the expression of two Maisons that have never accepted any compromise in terms of performance and elegance.” 

To celebrate UltraFino Maserati’s debut at the Watches and Wonders 2026 trade fair in Geneva, Maserati and Bianchet are offering invited guests an exclusive MCPURA driving experience: a unique opportunity to discover the watch and car, and to experience at first hand the creative dialogue that gave rise to this extraordinary collaboration.

The post Maserati And Bianchet Unveil Ultrafino Maserati first appeared on Top 10 of Indonesia.

In 2019, George Russell debuted in Formula One™. After joining the Mercedes-AMG PETRONAS Formula One™ Team in 2022, the Briton instantly claimed pole at the Hungarian Grand Prix™ and seven podiums within his first 20 races. Russell has since secured five Grand Prix victories for the team, with his latest win at the 2025 Singapore Grand Prix. The acclaimed racing driver has now collaborated with IWC’s creative team to design two limited-edition Pilot’s Watches, bringing his creative vision to the brand.

Throughout his whole career, the colour blue has had a significant meaning for Russell. After initially racing for the Mercedes-AMG PETRONAS Formula One™ Team with a black helmet, he soon reverted to the blue-dominant design that has long served as the foundation of his racing brand. Standing apart on the Formula 1™ grid, the colour blue is uniquely associated with Russell and emblematic of the duality he brings as a driver: calm under pressure, yet fiercely competitive. This unique shade, which is also present in Russell’s current helmet design, is at the core of these special editions: both feature dial details and rubber straps in Russell’s signature blue colour. 

“It has been an unforgettable experience working with IWC Schaffhausen’s creative team on the design of my first ever limited-edition watches. By incorporating my signature blue colour that has accompanied me during most of my career as a racing driver, as well as my 63 Logo, these watches feel truly personal and unique to me. These two limited-edition Pilot’s Watch pieces are reflective of where my journey has taken me so far and of what I have been able to achieve on and off the race track,” says George Russell.

“Since 2013, we have enjoyed a close relationship not only with the Mercedes-AMG PETRONAS Formula One™ Team, but also with the team’s drivers. It was an honour to collaborate with George Russell to bring his vision of a bold sports watch to life. These special editions truly capture his spirit as a person and gifted driver,” explains Franziska Gsell, Chief Marketing Officer at IWC Schaffhausen.

The Pilot’s Watch Chronograph 41 George Russell combines materials that are emblematic of the comprehensive expertise IWC has acquired since the 1980s. Its 41.9-millimetre case is crafted from black zirconium oxide ceramic, a material IWC pioneered four decades ago. Ceramic is lighter than steel and highly scratch-resistant, making it an attractive choice for watches. The crown and the pushers are made of Ceratanium®, an IWC-developed material that combines the lightness of titanium with a hardness and scratch resistance similar to that of ceramic. The black dial features indices and numerals printed in George Russell’s signature blue shade. The black hands are filled with Super-LumiNova® in the same colour. The chronograph is powered by the IWC-manufactured 69380 calibre with a power reserve of 46 hours.

The Pilot’s Watch Automatic 41 George Russell is housed in a 41-millimetre case made from black zirconium oxide ceramic, with its crown made from Ceratanium®. Similar to the chronograph, the model displays indices, numerals and Super-LumiNova® in the signature blue shade associated with George Russell. It is powered by the IWC-manufactured 32112 calibre, which includes a double-pawl winding system that provides a power reserve of 120 hours.

Both watches feature titanium case backs with distinct engravings of the number 63, the starting number the driver has raced with since he was a child winning karting championships all the way through to Formula One.  The chronograph and automatic models are fitted with blue rubber straps in the same signature blue hue found on the dial, complete with Ceratanium® pin buckles. Thanks to the integrated EasX-CHANGE® system, these straps can be exchanged quickly and easily without any tools.

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