Results for Constant Force / Remontoir

New: Grand Seiko T0 Constant-force Tourbillon – World Premiere For A Tourbillon With Co-axial Remontoir

Grand Seiko unveils a concept caliber T0 - Constant-Force Tourbillon with an interesting new double cage design for a remontoir tourbillon.

Up Close: Grand Seiko Kodo Constant-Force Tourbillon SLGT005

Following the 2022 debut of its first ever tourbillon – and the brand’s most complicated watch ever – Grand Seiko follows up this year with the Kodo Constant-Force Tourbillon SLGT005 “Daybreak”. Mechanically identical to its predecessor (the SLGT003), the new Kodo still boasts a co-axial tourbillon and remontoir, a novel construction unique to the Kodo. But the Kodo SLGT005 is dressed in brighter colours of silver tones and pale greys, hence the “Daybreak” nickname. The result is a watch that’s less aggressively technical in style, but just as complicated. And thanks to its lighter palette, the technicality and decoration of the movement are arguably more prominent in the Kodo “Daybreak”. Initial thoughts The Kodo in its original form had a strikingly skeletonised appearance that maximised the view of its intricate mechanics, giving something of an anime sci-fi aesthetic. This was accentuated by the dark colours highlighted with vivid, dark red rubies. The new version, on the other hand, is both lighter in colour and visual weight. Because there’s less colour contrast in the movement, it appears a bit more classical and less stylised. A clever touch are the blue jewels to replace the conventional red ruby bearings, which enhances the “daylight” theme. The original Kodo SLGT003 from 2022 Even though it looks different, the Kodo SLGT005 is identical in technical terms. So it still has the impressively constructed movement with a novel approach to t...

In-Depth I: Grand Seiko Kodo Constant-Force Tourbillon SLGT003

The first complicated mechanical watch from the brand in its six decades years of history, the Grand Seiko Kodo Constant-Force Tourbillon SLGT003 is an impressive example of high horology. The Kodo is self-explanatory: it is equipped with a highly skeletonised and sensitively finished movement boasting a one-second remontoir and tourbillon, both mounted on the same axis. The Kodo is an interesting watch in all respects, tangible and intangible, making it worth a detailed examination – exactly the focus of this two-part series. In this first instalment, we explain the development and conception of the Kodo, as well as the decoration of its movement. In the second part that will be published subsequently, we detail how the movement works and analyse how it compares to the competition. A surprise Evolved from the T0 concept movement unveiled just two years ago, the Kodo is undoubtedly a milestone – and a major step upwards – for the Japanese watchmaker that’s historically been focused on simple but high-quality everyday watches. Like conventional Grand Seiko (GS) watches, the Kodo is all about high-quality timekeeping, but it is far from simple. An example of a typical Grand Seiko, which is strikingly different from the Kodo, yet not so different in terms of philosophy Well known for its quest for high precision – amongst its earliest timepieces were observatory-tested chronometers – GS has done much research and development in the cutting-edge timekeeping techn...

In-Depth: Breguet’s Constant-Force Magnetic Escapement

Earlier this week, Breguet rounded off its grandiose 250th anniversary with the unexpected launch of the Expérimentale 1 chronometer in Paris. Showcasing modern Breguet’s most impressive innovation to date - a magnetic constant-force escapement - the watch left many scratching their heads simply because the novel invention defies easy explanation. Here we explain the actual functioning of this remarkable invention, and why it represents such a significant step forward in terms of chronometry and escapement technology. The origins of the concept Before turning to the decidedly modern and futuristic Expérimentale 1, we must first take a short trip to the past and consider how the idea of using magnets in mechanical escapements first came to life. For that we must turn to the late 1930s, when Cecil Frank Clifford, Fellow of the British Horological Institute (BHI), started experimenting with oscillators maintained by magnetic rails or escape wheels.  He was granted a British patent in 1954 for a variety of magnetised escape wheels paired with elastic vibrating magnetic blades. The device would operate silently and Clifford envisioned it being used for naval underwater torpedoes, so the lack of ticking would be harder to pick up by sonars.  Iterations of Clifford magnetic escapements. His designs were rudimentary. The principle was that the escape wheel would be braked by a vibrating pair of magnetised blades (in several possible configurations), while simultaneously ...

A Monday Morning With The Grooviest Watch In The World: The Grand Seiko Kodo Constant-Force Tourbillon “Daybreak”

Grand Seiko’s first all-mechanical complicated watch debuted in 2022. It was a timepiece with a movement featuring a tourbillon with an inner carriage rotating at eight beats per second and a constant-force mechanism rotating at one beat per second. Not only was the Grand Seiko Kodo Constant-Force Tourbillon SLGT003 a complicated and ingenious watch, but […] Visit A Monday Morning With The Grooviest Watch In The World: The Grand Seiko Kodo Constant-Force Tourbillon “Daybreak” to read the full article.

In-Depth: Girard-Perregaux’s True Constant-Force Escapement

Ten years after it arrived on market, Girard-Perregaux revived its most notable modern-day invention with the Neo Constant Escapement. Operating on the same principles as the original, the Neo Constant Escapement (NCE) features an upgraded movement inside a more compact case. A combination of a historical concept originating with Abraham-Louis Breguet and cutting edge horology, the NCE retains the defining invention of the original – a true constant-force escapement. “True” because the constant-force mechanism, comprising a lozenge-shaped silicon spring, is integrated with the pallet lever, which in turn interacts with a “natural” escapement of twin escape wheels. While the key concept has been retained, the rest of the NCE, however, has been improved over the original, with wearability in particular having been enhanced. Initial thoughts The fundamental concept of the NCE is appealing because it successfully combines a significant historical invention, Breguet’s double-wheel escapement, with an innovation that is entirely 21st century, a compliant mechanism in silicon. Both are brought together in an elegant yet ingenious manner. The basis of the movement is Breguet’s échappement naturel, the “natural” escapement with two wheels that has been adopted in the modern day, in a variety of modified forms, by Voutilainen, F.P. Journe, and Charles Frodsham. But the natural escapement here has been enhanced with a constant force mechanism made up of a single pi...

Grand Seiko T0 Constant Force Tourbillon: I Couldn’t Believe My Eyes! – Reprise

As Joshua Munchow swiped through posts on Instagram one day, he was stopped in his tracks, toothbrush dangling from his gaping mouth, eyes wide, and one singular thought running through his head as he stared at his phone: Grand Seiko doesn’t make movements like this. This is an avant-garde tourbillon movement with a constant force escapement and incredible, exposed mechanics! What in the world . . .?! Meet the T0.

Grand Seiko Kodo Constant Force Tourbillon: Grand Seiko Unleashed

The Kodo Constant Force Tourbillon is a full manifestation of the precision excellence one finds at Grand Seiko. It is also a tacit indication that there should be no doubt in any aficionado’s mind whether Grand Seiko belongs in the top tier of haute horology.

Review: The New Grand Seiko Kodo Constant-force Tourbillon SLGT003

In 2020, the world bore witness to something off the beaten path from Grand Seiko: an openworked, concept movement which incorporates a constant-force mechanism and a tourbillon as one unit on a single axis. This was the T0 Constant-force Tourbillon concept movement. While impressive, the T0 was an uncased, unwearable movement; it was not aRead More

Grand Seiko T0 Constant Force Tourbillon: I Couldn’t Believe My Eyes – Reprise

As Joshua Munchow swiped through posts on Instagram one day, he was stopped in his tracks, toothbrush dangling from his gaping mouth, eyes wide, and one singular thought running through his head as he stared at his phone: Grand Seiko doesn’t make movements like this. This is an avant-garde tourbillon movement with a constant force escapement and incredible, exposed mechanics! What in the world . . .?! Meet the T0.

Auction Watch: The Unique Grand Seiko Kodo Constant-Force Tourbillon SLGT001

On very rare occasions does Grand Seiko create unique versions of its watches. But it has done so with a unique version of the Kodo Constant-Force Tourbillon – the one-off reference SLGT001 – that will go under the hammer at Phillips’ New York auction December 11, with some proceeds from the sale going to a children’s charity. Anyone who read our earlier in-depth, two-part story on the Kodo (part I covers the watch and part II its technical features) will understand the the impressive technical achievement that is its movement. The SLGT001 has all of that, but in a unique execution specifically for the auction. Engraved “Unique Piece No. 1/1” on the back, the SLGT001 is instantly recognisable as a one-off. While the standard version of the model has a monochromatic grey palette, the SLGT001 is set apart by its colour: heat-blued and gilded components against rhodium-plated bridges. Most of the screws are blued steel, while the three-armed tourbillon carriage is blued titanium. And the SLGT001 is also distinguished by its case material. Unlike the standard model that has a case made up of both titanium and platinum, this is entirely in Brilliant Hard Titanium, the brand’s proprietary alloy that boasts a brighter, more silvery hue than most titanium alloys. A portion of the proceeds from the sale of the SLGT001 will go to the Children’s Heart Foundation. Besides benefiting a good cause, the winning bidder will also get a trip to Japan to meet the team behind...

In-Depth II: Grand Seiko Kodo Constant-Force Tourbillon SLGT003

Having delved into the origins, concept, and design of the Grand Seiko Kodo Constant-Force Tourbillon SLGT003, we now turn to the granularity of its technical qualities. The Kodo is first and foremost a chronometer in the vein of the watches that lay behind the founding of Grand Seiko (GS). A brand focused on precision timekeeping since its establishment in 1960, the opening act of GS in its first decade was competing in observatory chronometer trials at Neuchatel and Geneva – and winning, much to the horror of the Swiss. Several decades later the brand is still pursuing perfect accuracy in both mechanical, quartz, and hybrid formats, most notably with the novel Spring Drive. The Kodo powered by the cal. 9ST1 is the latest, and arguably greatest, endeavour in chronometric precision from GS. But it is like no GS that has come before it. Rather than rely on modern technology and materials, the Kodo instead revisits traditional mechanical solutions, namely as the constant-force mechanism and tourbillon. Combining the two in a wristwatch mark a milestone for GS, or any Japanese watchmaker for that matter. To understand the mechanical systems within the Kodo, we must first understand the fundamental challenges in precision timekeeping. The factors that influence precision fall into two categories, the first related to the barrel or energy supply, and the second, gravity’s effect on the balance or oscillator. Energy challenges The barrel is the source of energy in a conve...

INTRODUCING: The IWC Big Pilot’s Watch Constant-Force Tourbillon Edition “AMG ONE OWNERS”

If you’ve ever been catching some public transport and spotted someone wearing a six-figure luxury watch, you know the feeling of seeing something extraordinary in an ordinary context. The Mercedes-AMG ONE is possibly the most extreme example of this concept - a hypercar using Formula 1 technology to achieve over 1000 horsepower in a street-legal … ContinuedThe post INTRODUCING: The IWC Big Pilot’s Watch Constant-Force Tourbillon Edition “AMG ONE OWNERS” appeared first on Time+Tide Watches.

INTERVIEW: Takuma Kawauchiya unpacks the wonders of the Grand Seiko Kodo Constant Force Tourbillon

With hair neatly parted and pocket square cheekily stuffed into his breast pocket, Takuma Kawauchiya doesn’t look like a former guitarist in a rock band that once toured around the world. But music’s loss has been the watch world’s gain in a very big way. The Grand Seiko R&D; engineer and watchmaker is responsible for the T0 Constant … ContinuedThe post INTERVIEW: Takuma Kawauchiya unpacks the wonders of the Grand Seiko Kodo Constant Force Tourbillon appeared first on Time+Tide Watches.

VIDEO: Seiko President reveals the origin story behind the Grand Seiko Kodo Constant Force Tourbillon

“Grand Seiko was born in 1960 and for about 50 years it was just limited exclusively to the Japanese domestic market,” explains Seiko President Akio Naito in this video. “Then we decided to go into the global market in 2010, and then we decided to make Grand Seiko an independent brand in 2017.” Grand Seiko has … ContinuedThe post VIDEO: Seiko President reveals the origin story behind the Grand Seiko Kodo Constant Force Tourbillon appeared first on Time+Tide Watches.

Introducing the IWC Big Pilot’s Watch Constant-Force Tourbillon Edition “IWC Racing”

With the Big Pilot’s Watch Constant-Force Tourbillon Edition “IWC Racing”, IWC Schaffhausen presents a horological masterpiece in a design inspired by the technical world of motorsport.

IWC Big Pilot’s Watch Constant-Force Tourbillon Edition “IWC Racing”: Haute Horlogerie Contrasts

The IWC Big Pilot’s Watch Constant-Force Tourbillon “IWC Racing” edition piques Joshua Munchow's interest thanks to its connection between time, flight, and mechanics. This latest iteration of the Big Pilot’s Watch Constant-Force Tourbillon is new for 2021 and provides an extremely attractive proposition for the historically minded pilot’s watch fan. Here Joshua explains why.

Introducing the Grand Seiko T0 (T-Zero) Constant-Force Tourbillon

Grand Seiko introduces the T0 (T-Zero) Constant-Force Tourbillon, with a tourbillon and a constant force mechanism co-axially mounted

Introducing the IWC Portugieser Constant-Force Tourbillon

IWC introduces the Portugieser Constant-Force Tourbillon paired with a uniquely IWC, made-to-order service.

Girard-Perregaux Neo Constant (Force) Escapement: The Evolution of a Revolution

While it is remarkable how Girard-Perregaux made the movement, it is even more astonishing how they turned it into such an incredibly good-looking watch. Compared to its predecessor, the Neo Constant Escapement has a very wearable size of 45mm in diameter at a thickness of 14.8mm. It sits nicely on even a smaller wrist thanks to relatively short lugs, while the titanium case keeps the weight down.

The Revolutionary List: 24 Technically Brilliant Watches – IWC Portugieser Constant-Force Tourbillon

Best Tourbillon 2022: Grand Seiko Kodo Constant-Force Tourbillon

Auction Watch: Breguet Skeleton 30-Day, Constant Force Clock by Philippe René Jaccard

One of the most intriguing timepieces being offered in the final run of watch auctions for 2019 is not a wristwatch, but an incredibly rare table clock made by Breguet in 1934 that’s going under the hammer at Christie’s. It hardly looks like a typical Breguet – having no engine-turning or gilding or blued steel hands – but is remarkably striking, with a skeletonised, architectural movement that is modern-looking despite being 85 years old. Abraham-Louis Breguet is rightly regarded as one of the most important watchmakers in history, whose inventions range from the natural escapement to the tourbillon, while being commercially savvy enough to become a leading watchmaker to the Ottoman Empire. But his descendants ventured into other businesses by the mid 19th century, most notably aviation, so the watchmaking operation was sold by Louis-Clément Breguet, grandson of Abraham-Louis, in 1870 to English watchmaker Edward Brown. The Browns kept the workshop in Paris, though it moved several times over the decades. During the century that the Brown family ran Breguet – Brown’s grandson George sold the company to French jeweller Chaumet in 1969 – the firm mostly retained the signature Breguet style and produced a large variety of timepieces, but in tiny quantities, often relying on external specialists for movements and components. Timepiece no. 3142 This clock is one such timepiece from the period. A unique piece according to the accompanying Breguet museum archive...

Cramain Introduces the Mark II Constant Force

Established in 2014, Cramain recently unveiled its first wristwatch, the Mark II Constant Force. Technically the brand’s second model – the Mark I was never commercialised – the Mark II is a hand-wound, time-only wristwatch equipped with a 20-second remontoir, and produced almost entirely by Kilian Leschnik, one half of the founding duo, the other being Dr Julian M. Stiels, a Swiss medical doctor with a keen interest in watches. Just 28 years old, Mr Leschnik completed his watchmaking studies in 2016. But the German watchmaker was already working on his own wristwatch in 2014, a timepiece that evolved out of his school watch. Cramain is a means to “live his dream as a mechanical artist”, says Mr Leschnik. Mr Leschnik and Dr Stiels developed the Mark II together, with Dr Stiels having taught himself computer-aided design, allowing him to construct do the construction of the watch and its movement. Starting two years ago, Dr Stiels has made Cramain his full-time calling. The pair are the sole owners of the brand, which is entirely self-funded. Part of it was made possible by prototyping work Mr Leschnik has done for various Swiss watch brands. Initial thoughts Impressive in both function and fabrication, the Mark II is evidently a wristwatch of extremely high quality, and one created by a watchmaker with a dedication to quality in form and finish. The Mark II’s design is a contemporary techno-mechanical style that is reminiscent of Greubel Forsey, which works i...

First Look – The Spectacular Pink Gold Edition of the Girard-Perregaux Neo Constant Escapement

A conundrum shared by watchmakers for centuries concerns the issue of constant force, or how to produce a steady, unwavering stream of power from the mainspring to the regulating organ to prevent rate variations and maintain amplitude consistency. The big question is how? Taking the bull by the horns, Girard-Perregaux tackled the dilemma with the […]