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Results for Equation of Time

33,648 articles · 3,721 videos found · page 814 of 1246

Vacheron Constantin Marks 270 Years with Most-Complicated-Wristwatch-Ever SJX Watches
Vacheron Constantin Marks 270 Years Mar 31, 2025

Vacheron Constantin Marks 270 Years with Most-Complicated-Wristwatch-Ever

This year is quite the anniversary for Vacheron Constantin, with the brand turning 270 years old. To mark the occasion appropriately, the Geneva-based manufacture created the mighty Les Cabinotiers Solaria Ultra Grand Complication – La Première, the culmination of eight years of development. Now the most complicated wristwatch ever, this unique wristwatch boasts 41 complications on two faces, encompassing five rare functions as well as a world first – a celestial object tracker. All of that is contained in a surprisingly compact, but still large, case. (A detailed list of the complications is available in the addendum below.) Initial thoughts Timepieces of such complexity reach beyond the realm of horology and can be regarded as engineering marvels. In a sense the Solaria is not unexpected since VC has a long history of making ultra-complications – “The Berkley” pocket watch was just unveiled a year ago – but the Solaria is one of the most fascinating watches in recent memory. The numbers behind the Solaria are impressive. Beyond the 41 functions, the watch is powered by the cal. 3655 that’s made up of 1521 pieces and the subject of 13 patents. The watch took eight years to develop and construct, which is impressive for a single timepiece. Surely VC will trickle down some of the developments related to cal. 3655 and install them in simpler timepieces, but condensing 41 complications into a wristwatch no thicker than 15 mm is an engineering feat that cannot b...

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Grand Seiko Presents Two Completely Different Tentagraph Watches: The Cool Evolution 9 SLGC007 And The Wild Tokyo Lion SLGC009 Fratello
Grand Seiko Presents Two Completely Different Mar 31, 2025

Grand Seiko Presents Two Completely Different Tentagraph Watches: The Cool Evolution 9 SLGC007 And The Wild Tokyo Lion SLGC009

When Grand Seiko launched the first Tentagraph in 2023, it was also the brand’s first all-mechanical chronograph. Two years later, two new Tentagraph models debut - the Evolution 9 SLGC007, which is a new colorway of the 2023 SLGC001, and the bold Tokyo Lion SLGC009, a watch in the Sport Collection. Yes, Grand Seiko presents […] Visit Grand Seiko Presents Two Completely Different Tentagraph Watches: The Cool Evolution 9 SLGC007 And The Wild Tokyo Lion SLGC009 to read the full article.

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Grand Seiko Steps Into The Future With New Spring Drive U.F.A. SLGB001 And SLGB003 Fratello
Grand Seiko Steps Into Mar 31, 2025

Grand Seiko Steps Into The Future With New Spring Drive U.F.A. SLGB001 And SLGB003

Seiko founded Grand Seiko to pursue watchmaking excellence. Most commonly, this mission translated into creating the most accurate watches possible. Later on, aesthetics also played an increasingly important part thanks to the Grammar of Design. Grand Seiko was Seiko’s answer to the Swiss domination of the industry, and the line offered watches that could compete […] Visit Grand Seiko Steps Into The Future With New Spring Drive U.F.A. SLGB001 And SLGB003 to read the full article.

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Introducing: The 2025 Tank Louis Cartier With An Automatic Movement And A Guilloché Dial Fratello
Cartier Mar 31, 2025

Introducing: The 2025 Tank Louis Cartier With An Automatic Movement And A Guilloché Dial

You’ve already seen the header image, so you know exactly what watch this article is about. However, when I say, “Roman numerals, railway track, parallel brancards, blued-steel sword hands, and a beaded crown with a cabochon on top,” what do you envision? Of course, that can only be a Cartier Tank. At Watches and Wonders […] Visit Introducing: The 2025 Tank Louis Cartier With An Automatic Movement And A Guilloché Dial to read the full article.

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First Look – The new Grand Seiko Spring Drive UFA SLGB001 & SLGB003 (With Finally a Micro-Adjustment Clasp) Monochrome
Grand Seiko Spring Drive UFA SLGB001 Mar 31, 2025

First Look – The new Grand Seiko Spring Drive UFA SLGB001 & SLGB003 (With Finally a Micro-Adjustment Clasp)

When talking about vintage Grand Seiko watches, some references or acronyms have a lot of meaning. For instance, 44GS refers to one of the most important models ever, the watch that initiated the Grammar of Design and the shape of all subsequent creations. The acronym VFA also has its importance. Standing for Very Fine Adjusted […]

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Boom! The New TAG Heuer Formula 1 Solargraph Collection Fratello
TAG Heuer Formula 1 Solargraph Collection Mar 31, 2025

Boom! The New TAG Heuer Formula 1 Solargraph Collection

If last May’s TAG Heuer Formula 1 × Kith announcement left you yearning for a regular-production retro-inspired collection, then today is your lucky day. The new Formula 1 Solargraph collection is here, and I think it goes a long way toward satisfying the legions of fans asking for a return to the colorful good old […] Visit Boom! The New TAG Heuer Formula 1 Solargraph Collection to read the full article.

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Insight: Rolex Land-Dweller Cal. 7135, Patents and Innovation Explained SJX Watches
Rolex Land-Dweller Cal 7135 Patents Mar 31, 2025

Insight: Rolex Land-Dweller Cal. 7135, Patents and Innovation Explained

Rolex has entered uncharted territory with the Land-Dweller, arguably the most advanced and radical creation from a hitherto conservative brand. The Land-Dweller is significant, perhaps even game changing, not because of the integrated bracelet or patented solid lume, but because of the cal. 7135, a new calibre with an all-new double-wheel escapement known as Dynapulse and a ceramic balance staff. (This story details the technical advances in the movement; for a review of the watch, check out the accompanying story.) The Land-Dweller 40 mm in platinum The fundamentals Why is it significant, or even game changing? The cal. 7135 is the first in-house, serial production Rolex movement that is high frequency, beating at 5 Hz or 36,000 beats per hour. All things being equal, a higher frequency promises superior timekeeping. Despite the higher frequency, the cal. 7135 still has a 66-hour power reserve. That’s thanks in part to the Dynapulse escapement which is 30% more efficient than a conventional Swiss lever escapement, while occupying essentially the same volume of space. The balance assembly of the cal. 7135 Dynapulse is one of several innovations that make the cal. 7135 a landmark, especially since it will be produced at scale. While Rolex has traditionally been associated with incremental innovation, the cal. 7135 is a revolution. The Land-Dweller is the subject of 32 filed patents, 18 of which are unique to the watch. Moreover, 16 of the patents unique to the watch are ...

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In-Depth: Rolex Land-Dweller SJX Watches
Rolex Land-Dweller Mar 31, 2025

In-Depth: Rolex Land-Dweller

The most discussed debut of Watches & Wonders 2025, the Rolex Land-Dweller is an entirely new model with a new case and bracelet, but that’s not why it is significant. While Rolex is conventionally associated with incremental innovation, the Land-Dweller is game changing. Not because of the design, but because it’s equipped with perhaps the ultimate mechanical movement produced at scale in contemporary watchmaking, a calibre that’s the subject of 16 patents. (The finer technical details can be found in our accompanying story.) The cal. 7135 inside the Land-Dweller is a new, sophisticated calibre equipped with an indirect-impulse, double-wheel escapement that’s entirely in silicon – christened Dynapulse – matched with a ceramic balance pivot. And it’s a high-frequency calibre running at 5 Hz or 36,000 beats per hour. Cumulatively, that makes for a superior timekeeper on the wrist. The Land-Dweller debuts in two sizes, 36 mm and 40 mm, in three basic variants: white Rolesor, Everose gold, and platinum. There are also a handful of high-jeweller versions. The Land-Dweller in white Rolesor on Roger Federer’s wrist. Image – Rolex Initial thoughts The Land-Dweller is both surprising and predictable. The styling is surprising; the integrated bracelet echoes historical watches like the Oysterquartz and ref. 5100 Beta 21 but I never expected it. The Land-Dweller looks and feels surprising for a Rolex Oyster. At 9.7 mm it’s the slimmest Oyster Perpetual in the cat...

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NORQAIN Launches New Independence Skeleton Chronos Worn & Wound
Norqain Launches New Independence Skeleton Mar 31, 2025

NORQAIN Launches New Independence Skeleton Chronos

After last year’s success in launching the Independence Skeleton Chrono 42mm, NORQAIN will be unveiling two new additions to this line-up for Watches and Wonders: purple and jade. Now, you may recall that there was already a purple Skeleton Chrono in September of 2024, but this one we’re told is slightly different – and not limited to just a 300-piece production. As the name suggests for these models, NORQAIN has continued its offering of high-end timepieces with a little peek under the hood, so to speak, with a skeletonized dial. While this may be a rugged watch that’s meant to be put to use, seeing the delicate pieces just underneath the sapphire crystal remind us of why we love this hobby. In terms of appearance and material, both new models feature Grade 5 titanium cases, weighing in at just 94 grams. For the purple version, the titanium complements the deep purple accents and rubber strap for a sporty look. As for the jade version, there is a DLC coating for a more sombre look that nicely contrasts the richness of the green rubber strap.  The Independence Skeleton Chrono 42mm is equipped with a 30-minute counter at 12 o’clock, a running seconds indicator, and a fly-back function. In terms of movement, both models run on an NORQAIN 8K Manufacture Calibre (NK24/1) with a 62-hour power reserve, which can be seen through the sapphire crystal caseback. Both new references in the Skeleton Chrono 42mm will be showcased during Watches & Wonders and you can expect h...

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Introducing – The New Jacob & Co. Astronomia Revolution Four-Axis Tourbillon Monochrome
Jacob & Co. Mar 31, 2025

Introducing – The New Jacob & Co. Astronomia Revolution Four-Axis Tourbillon

Jacob & Co. this year celebrates 10 years since the launch of the Astronomia collection, which comprises some of the craziest, oversized and overjewelled (like in diamonds), overperforming creations that are also mechanically complex and provide the owner, apart from other pleasures, with a true dance of arms, sub-dials and rotating stones… And, of course, […]

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Introducing – The Gerald Charles Maestro GC39 Jumping Hour 25th-Anniversary Edition Monochrome
Gerald Charles Mar 31, 2025

Introducing – The Gerald Charles Maestro GC39 Jumping Hour 25th-Anniversary Edition

The Gerald Charles brand was founded by the legendary designer Gérald Genta in 2000, with backing from the Zivani family. After the designer’s death in 2011, Federico Zivani set about reviving the brand and has since created a solid collection of watches around the idiosyncratic yet immediately recognisable Maestro case. Celebrating 25 years of the […]

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Introducing: The Gerald Charles Maestro GC39 25th Anniversary Edition Fratello
Gerald Charles Mar 31, 2025

Introducing: The Gerald Charles Maestro GC39 25th Anniversary Edition

In celebration of its quarter-century anniversary, Gerald Charles presents the Maestro GC39 25th Anniversary Edition. This is a jump-hour watch with an in-house-designed caliber. Naturally, the new timepiece features the brand’s signature baroque case shape, but it is fully modernized with Grade 5 titanium construction. We’ve covered the majority of new releases from Gerald Charles […] Visit Introducing: The Gerald Charles Maestro GC39 25th Anniversary Edition to read the full article.

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Introducing: The Surprising Sartory Billard By Studio Underd0g SB05 Sunfl0wer Fratello
Studio Underd0g Mar 31, 2025

Introducing: The Surprising Sartory Billard By Studio Underd0g SB05 Sunfl0wer

Did Sartory Billard and Studio Underd0g announce one of the most exciting watches of this release-packed week? The two brands joined forces to create a very special version of Sartory Billard’s SB05. This new SB05 Sunfl0wer features a unique dial designed by Studio Underd0g and produced by Sartory Billard. This 10-piece limited edition will undoubtedly […] Visit Introducing: The Surprising Sartory Billard By Studio Underd0g SB05 Sunfl0wer to read the full article.

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