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Monochrome
Until recently, for those who have followed Breguet‘s exploits in modern chronometry, one watch has long occupied a special place: the Classique Chronométrie 7727, from 2013. The 7727 demonstrated what high frequency could achieve when combined with silicon components and, quite provocatively, when magnetism, a force that watchmaking usually fears, was not only controlled but […]
SJX Watches
The upcoming Phillips Hong Kong auction includes a diverse and spectacular selection of pocket watches spanning two centuries. From early 19th‑century enamel masterpieces crafted for the Chinese market to 20th‑century tourbillon chronometers that triumphed at observatory trials, the lots on offer demonstrate the technical and aesthetic evolution of the watch over the last two hundred years. Lot 1086 – S. Smith and Son No. 1899-1 Tourbillon Chronometer with Kew Class A Certificate Albert Pellaton-Favre constructed the first of two tourbillons in the auction, which was later retailed by S. Smith & Son. The other, by Patek Philippe, is the work of his son, Jämes-César Pellaton. Both are depicted in Reinhard Meis’s famous Das Tourbillon. The English and Swiss disagreed on what constitutes a chronometer. The English argued that a chronometer must use a chronometer (detent) escapement, while the Swiss considered any watch a chronometer if performed well enough – which the English would call a “Half-Chronometer”. As the Willis enamel dial boasts, the first is a chronometer by both English and Swiss reckoning, with a spring detent escapement and “Especially Good” certificate from the Kew Observatory. While S. Smith and Son retailed quite a number of tourbillons, including others with detent escapements, most were sourced locally, while the present lot uses a Swiss movement. The London branch of Baume Frères ordered six tourbillon chronometers from Albert Pella...
Worn & Wound
A series of features identifying the most extraordinary mechanical masterpieces in history, blending precision, innovation, and craftsmanship. We all have our favourite timepieces either in our collection or those incredible horological masterpieces that have been invented or created through the ages. This series will showcase examples from the previous centuries up to the present day and look at the importance and impact on modern day timekeeping. John Harrison’s H4 Chronometer was a groundbreaking timepiece that solved the longitude problem, a major challenge for navigation during the 18th century. Before Harrison’s work, sailors had no reliable way to determine their precise east-west position at sea, leading to deadly navigation errors. The British government, through the Longitude Act of 1714, offered a large prize to anyone who could develop a practical solution. Sir Cloudesley Shovell, by Michael Dahl, about 1702-5 (L); The Association with the Eagle, Rumney and the Firebrand, Lost on the Rocks of Scilly, October 22, 1707 (R). Image courtesy of the © National Maritime Museum, Greenwich, London The Catalyst for the Longitude Act In the early 18th century, determining longitude at sea was one of the greatest challenges in navigation. While sailors could measure latitude using the position of the sun or stars, longitude required precise timekeeping-something that was nearly impossible with the unreliable clocks of the time. The inability to determ...
Deployant
Longines continues its exploration of high-frequency watchmaking with the release of the Ultra-Chron Classic, a modern reinterpretation of its 1967 Ultra-Chron model. Offered in 37mm and 40mm case sizes, and powered by the high-beat calibre L836.6, the new Ultra-Chron Classic combines heritage styling with contemporary materials and full chronometer certification.
Worn & Wound
Standards and certifications in watchmaking were primarily developed for chronometry, as well as to reassure the buyer that their watch had been thoroughly tested to a certain level of accuracy. The standards we see most often in the technical specifications are COSC, METAS, and other company or regional chronometry certifications. In modern watchmaking, other key standards like the ISO 6425 dive watch standard, which was developed in the 1990s and followed by watch companies, also come into play. These standards were largely based on various military set standards for watches; however, since each military set their own requirements, there was not one universally followed standard. The International Organization for Standardization (ISO) published specific requirements and testing procedures for a watch to be officially designated a “Diver’s watch”. While there is no ISO standard for pilot’s watches, there are specific requirements set by militaries around the world. One of the most well-known standards is from the WWII German pilot’s watch known as the “Beobachtungsuhren” or “B-Uhren.” B-Uhren pilot’s watch standards are well documented and are still followed by many watch companies to this day. In March 2012, Sinn lead an initiative in collaboration with the Faculty of Aerospace Technology at the Aachen University of Applied Sciences to create TESTAF – Technical Standard for Pilot Watches. TESTAF was developed so that a pilot’s watch meets all mod...
Fratello
Just one year ago, I was introduced to Lederer watches. The brand, founded by Bernhard Lederer, creates incredible movements with complex mechanisms. Constant-force escapements and twin gear trains are some of the impressive details. Last year, I fell in love with the Triple Certified Observatory Chronometer, a set of 44mm watches that had traveled to […] Visit Hands-On With The New Lederer CIC 39 Longitude to read the full article.
SJX Watches
Greubel Forsey repackages its cutting edge perpetual calendar in a sleeker, more accessible format as the QP Balancier. It’s still a highly legible calendar that adjusts forward and back via the crown without need of tools or fear of damage. Despite the simpler styling, the QP Balancier retains the high-end movement decoration the brand is known for. Initial Thoughts Greubel Forsey was arguably a latecomer to the world of complications, spending its first decade on chronometry, refining the tourbillon. The brand’s first complication, the GMT presented in 2011, applied an unfamiliar approach to a familiar complication. That set the tone for the brand’s first perpetual calendar four years later – the Quantième Perpétuel à Équation. At its heart was a “mechanical computer” programmed with 48-month leap year cycle that allowed the calendar to be adjusted forward and back without issue, all from the crown. The Quantième Perpétuel à Équation of 2015 While the result is not novel, – Ulysse Nardin and H. Moser & Cie. have bi-directional perpetual calendar as well – the method certainly is. Greubel Forsey paired the mechanical computer with a similarly sophisticated in-line display – using four layers of stacked disks – making its perpetual as easy to read as it is to use. The new QP Balancier is a more focused watch than its predecessor, as it does away with the 24-second inclined tourbillon and equation of time. While wider, the case is also slimmer an...
SJX Watches
Few brands approach marine chronometer-style wristwatches with the intensity of Ferdinand Berthoud (FB). Fewer still have the capacity to produce a watch that is truly hand made. The brand has leaned into these strengths to good effect with the Naissance d’une Montre 3, which is perhaps the most labour-intensive wristwatch ever created. Marking the third official chapter of the Time Æon Foundation’s Naissance d’une Montre project, the Montre 3 is the byproduct of a six year quest to thoroughly document the steps required to make a chain and fusee wristwatch using only hand-operated tools. While the production of the Montre 3 involves more than 80 individuals from both FB and its parent Chopard, the labour involved equates to roughly a full year’s work for five people to produce each of the 11 pieces that will be made in the coming years. Initial thoughts It’s easy to feel jaded about the smoke and mirrors of luxury watch marketing, with terms like ‘hand made’ and ‘in-house’ used all too freely, making it difficult to separate the signal from the noise. Make no mistake, the Montre 3 is, in some ways, what all traditional haute horlogerie watches aspire to be, and takes the concept of hand craftsmanship to its absolute limit. The Montre 3 is neither inventive nor complicated, but the intrinsic quality of its construction is immediately obvious and breathtaking in its own right. To some extent, the simplicity of the 44.3 mm white gold case demonstrates the ...
Teddy Baldassarre
While Switzerland is regarded today as the world leader of watchmaking, Great Britain can lay claim to a wealth of horological milestones throughout its history as well. From Thomas Mudge’s development of the lever escapement in 1755 to John Harrison’s invention of the marine chronometer in 1759 to the innovations of clockmaker Thomas Tompion and his protegé George Graham in the areas of science and astronomy, England was an undisputed leader in timekeeping throughout the 18th and 19th centuries. The 20th century brought the decline of the British Empire and, with it, British watchmaking, as nations like Switzerland, Germany, and (for a while) the United States stepped in with modern mass-production techniques while the Brits held fast to traditional, artisanal methods. The United Kingdom essentially ceased being a major producer of timepieces by the end of World War II, but as the 21st Century dawned, a handful of entrepreneurial Britons have made great strides in bringing high-end watchmaking back to their native land, establishing new brands - and in some cases, resurrecting old ones - to make watches that appeal to today’s discerning enthusiasts in the U.K. and across the world. Whether the focus is military-style tool watches, avant-garde complications at approachable prices, or ultra-high-end pieces for well-heeled collectors, each brand boasts an identity that is proudly British and at the same time distinct from its peers. Here are 15 British watch bran...
Worn & Wound
The British brand Apiar has an intriguing slogan emblazoned across the front page of their website: Impossible Watches. Made Possible. If you spend enough time thinking about watches, collecting watches, and learning about watches, you begin to realize their limitations. Whether they’re chronometry related or have to do with the design and build of the watch itself, there are certain things that just can’t be done, or else stretch the limits of our current technology to the point where those things aren’t remotely feasible. The crazy idea you had for a watch case that defies the laws of physics might be something that only exists on paper. Additive manufacturing and 3D printing technologies have the potential to change that. When a metal object is formed by adding material to it rather than stripping it away, a manufacturer can create shapes, textures, and structures that would be impossible otherwise. Apiar’s Gen1.0 is a thrilling example of the possibilities of 3D printing in watch manufacturing. They’re by no means the first to create watches this way, of course, but they’re part of a new class of brands using the technology in an experimental way that seems to finally make the most of it, creating not just beautiful objects that defy watchmaking convention, but watches that redefine our expectations around durability, lightness, and other metrics by which all of us evaluate these things. Importantly, the use of additive manufacturing also democratizes wat...
Monochrome
Formex’s Essence line, introduced in 2018, quickly earned respect as the brand’s versatile, go-anywhere sports watch, combining sharp case architecture, great engineering, and chronometer-certified accuracy. In 2020, the collection took on a cosmic turn with the debut of the Space Rock editions, featuring dials cut from the ancient Muonionalusta meteorite. Over time, these rare cosmic […]
Monochrome
Few countries can hold a candle to the Italians when it comes to cars. With brands like Ferrari, Lamborghini, Maserati, Alfa Romeo and so on, there’s no shortage of four-wheeled beauties. Just mention names like Bertone, Pininfarina, Zagato, Ghia, Giugiaro, and the hearts of most Petrolheads will start racing with excitement. It’s no wonder, then, […]
SJX Watches
Grand Seiko returns to its Sport Collection with an even bolder and edgier take on its flagship chronograph with the Tokyo Lion Tentagraph SLGC009. Combining an oversized case Brilliant Hard Titanium and a high-spec, high-beat chronograph movement, the striking new is Tentagraph is surprisingly not an all-new design but an iterative evolution that builds on the existing Sport Collection case. Initial Thoughts While a strength of Seiko itself, chronometry-focused Grand Seiko has historically struggled with sports watches, though not for lack of trying. In 2019 Grand Seiko launched the angular and aggressive Sport case featuring a facetted, polygonal form with a sapphire-covered bezel to celebrate 20 years of Spring Drive. Grand Seiko intended the design to evoke the mane of the brand’s lion mascot. In 2023 came the regular production Tokyo Lion series, and the brand also extended the design language into its jewelled Masterpiece watches. The “lion’s mane” case design reminds me of the Audemars Piguet Royal Oak Concept, and with the addition of an octagonal bezel the resemblance has only grown, though I wouldn’t say it is derivative – if anything the Grand Seiko case is a more boisterous take on the 45GS design from the late 1960s. The earlier Spring Drive GMT Chronograph SBGC275 with a less stylised case design I quite liked the Sport case when it was launched in 2019, especially the rose gold SBGC230, but it felt unfinished with a round bezel and buttons. With...
SJX Watches
Voutilainen recently completed a custom commission with the 28 Kohan, a one-off example of its signature chronometer wristwatch that blends Finnish cultural symbols with Japanese decorative arts. Much of the decoration on the watch is maki-e, traditional Japanese lacquer, that is the work of artisan Tatsuo Kitamura, a frequent collaborator who was also responsible for past Voutilainen maki-e timepieces. Initial Thoughts Unique pieces and commissioned watches were historically the norm at the highest end of the watch market, which was then much smaller. Clients could be more demanding, and for the watchmaker, the risk of being unable to find a buyer was very real. Today off-the-rack watches dominate, largely for commercial and production reasons. Even brands with a long history of bespoke or custom watchmaking eschew custom dial colours. Some, however, keep the practice alive, like Vacheron Constantin with its Les Cabinotiers. Many independents also remain amenable to customisation, even established names that no longer need to, like Voutilainen, albeit with a long wait. Bespoke watches are inherently difficult to criticise – such watches are a success as long as the commissioner is satisfied, even if it’s the most hideous thing ever. Fortunately that isn’t the case here, the adjective that comes to mind is bedazzling. I suspect maximalist designs are often common on Voutilainen’s custom watches because collectors want to make the most of the opportunity. Some deta...
Monochrome
The Portugieser line is one of IWC’s iconic collections, tracing its origins back to the late 1930s when Portuguese businessmen sought precision marine chronometer-grade wristwatches with oversized cases and clear dials. Since then, the Portugieser family has evolved into a flagship line balancing classic elegance with technical prowess, blending clean, legible design with complications that […]
Monochrome
Swiss watchmaker Arnold & Son is named after the 18th-century English watchmaker John Arnold, the ingenious inventor who popularised the expression ‘chronometer’ to describe his precision marine timekeepers. Before the advent of marine chronometers to determine longitude at sea, navigators relied on the position of the Sun, Moon and stars to determine their position. Astronomy, […]
Monochrome
If you own mechanical Swiss watches, one of them potentially came to you with a COSC chronometer certificate. But not everyone knows exactly what this certificate means. The COSC is the Contrôle Officiel Suisse des Chronomètres or the Official Swiss Chronometer Testing Institute. COSC certifies Swiss-made movements or watches as chronometers (not to be confused […]
Monochrome
Few brands are as deeply embedded in maritime chronometry as Ulysse Nardin. With nearly 180 years of watchmaking heritage, the brand’s ties to all things nautical find expression in the more classical Marine collection and the brazenly contemporary Diver family. Following the 2018 relaunch of the Diver Chronometer 44mm series and a series of Diver […]
Monochrome
In 1891, following a devastating train accident caused by a faulty watch, Cleveland watchmaker Webb C. Ball was called upon to investigate and ultimately standardise timekeeping across America’s growing railroad network. Many think his work laid the foundation for modern chronometry standards. Webb C. Ball, through Ball Time Service, initially certified watches from American brands […]
Fratello
Brellum releases many small runs of watches during any given year, so I was surprised to find that it’s been nearly six months since our last review. Now we’re back with a look at the new Duobox Triple Calendar Moonphase LE Chronometer. Yes, that’s a mouthful, but the welcome news is that the watch now […] Visit Introducing: The Salmon-Dial Brellum Duobox Triple Calendar Moonphase to read the full article.
SJX Watches
René Beyer, the eighth-generation owner of Beyer Chronometrie in Zurich, died suddenly on April 13, 2025, at the age of 61. Beyer was a towering figure in Swiss watchmaking circles, known not only for helming his family’s 260-year-old business, but also for his passionate stewardship of its famed clock and watch museum, his warm ties with independent watchmakers, and his family’s close relationship with Patek Philippe. He is survived by his wife. Beyer’s passing was first reported by Zurich newspaper Inside Paradeplatz. Born in 1963 into the Beyer dynasty that began in Germany in 1760, Beyer grew up surrounded by clocks and watches. Like his father, Theodor “Teddy” René Beyer, he qualified as a watchmaker himself, learning the business from the ground up. Beyer’s role in the family business started in 1986 when his father suffered a heart attack and was forced to step back. A decade later, Beyer had formally taken over as managing director and proprietor of Beyer Chronometrie, becoming the eighth generation to run the venerable retailer, which first opened in Zurich in 1822. Unlike many of its peers that expanded nationally and internationally, the business remained a local operation in Zurich. Like many watch retailers of the old-school, Beyer was synonymous with his store. The store on Bahnhofstrasse, the main shopping street of Zurich A retailer and curator During his nearly three decades at the helm, Beyer carried on his father’s legacy and bol...
Hodinkee
Introducing the 2024 TAG Heuer Aquaracer Professional 300 collection: now featuring a new chronometer movement, refined case ergonomics, and a redesigned wave-pattern dial.
SJX Watches
Zenith has finally started to look beyond the El Primero with the G.F.J., which features a new version of the storied chronometer cal. 135. Conceived to mark the brand’s 160th anniversary, the G.F.J. moniker is a reference to the brand’s founder, Georges Favre-Jacot, whose initials grace the facade at the manufacture in Le Locle. This new model marks the return of the famous movement phased out about 60 years ago. But production has officially restarted, and the new cal. 135 features modern upgrades that differentiate it from the vintage original used in the Calibre 135 Observatoire introduced in 2022. The “new old stock” cal. 135 that Zenith dusted off for the 2022 edition. Image – Zenith The movement returns to market in a 160-piece limited edition in platinum and features an elaborate blue dial that that is made from lapis lazuli and mother of pearl. For about double the price, owners can request a full platinum bracelet, which endows the watch with impressive heft. Initial thoughts I’ve always liked the cal. 135 and wished Zenith would bring it back. That said, I was not convinced by the first stock images I saw of the G.F.J. I felt like the dial was overwrought, and the basketweave pattern on the movement was distracting. Having spent some time with the watch, I would soften my criticism of the dial as it’s more subtle on the wrist and up close the details are finely done. Moreover, subsequent non-anniversary versions will likely have these details toned...
Hodinkee
New size, new Master Chronometer spec, and good to 1000 meters.
SJX Watches
In celebration of birthday, Zenith presents a trio of chronographs entirely in blue ceramic, the 160th Anniversary Editions of the Chronometer Sport, Defy Skyline Chronograph, and Pilot Big Date Flyback. Each retains the specifications of its steel equivalent, with the only distinction being the case and bracelet material. Initial thoughts Best known for the El Primero high-beat automatic chronograph, Zenith arguably does best at chronographs, and that’s exactly what it’s doing for its anniversary. The reimagining of Zenith’s best-known models in blue ceramic is on trend – maybe a bit too trendy – with brands like Audemars Piguet having already done it. That said, the anniversary trilogy does offer a striking new alternative to anyone seeking an El Primero with a whole new aesthetic. The use of ceramic for both the case and bracelet, however, means each of the trilogy models is notably pricier than the equivalent model in steel. That’s acceptable for an anniversary limited edition, but not quite the same value proposition as the steel variants. Blue ceramic The Chronomaster Sport, Defy Skyline Chronograph, and Pilot Big Date Flyback each retain the same dimensions and movement as their respective steel models, except that the case and bracelet are now in blue ceramic modelled on Zenith’s signature hue. According to Zenith, blue ceramic was an undertaking that involved months of research and development. Blue ceramic is significantly more challenging to finish...
Time+Tide
The prolific observatory chronometer calibre is back.The post Has the Zenith G.F.J. actually achieved perfection? Maybe, and the Calibre 135 certainly helps. appeared first on Time+Tide Watches.
Fratello
For a long time, Zenith kept us guessing about what its celebratory 160th-anniversary release would be. But if you know something about Zenith, the social media posts hinted at something special related to the brand’s rich history in observatory chronometer competitions. With the release of the Zenith G.F.J., the watchmaker from Le Locle brings its […] Visit Zenith Celebrates Its 160th Anniversary In Style With The New G.F.J. to read the full article.
Monochrome
On the occasion of its 160th anniversary, Zenith celebrates its legacy in the field of precision watchmaking, bringing back to life the venerable calibre 135, the most awarded movement from the golden age of observatory chronometer competitions. In 2022, Zenith released an exclusive limited edition of 10 watches, powered by vintage 135-O movements, restored and […]
Monochrome
Arnold & Son presents the limited edition Constant Force Tourbillon 11, a classical beauty inspired by the first tourbillon created by Abraham-Louis Breguet based on John Arnold’s marine chronometer movement no. 11. Reunited once again, the yellow gold watch, with a constant force mechanism on the dial and a tourbillon regulator on the caseback, is […]
Time+Tide
What is a chronometer, or what does it mean to be COSC-certified? Here are all the answers.The post Everything you need to know about COSC appeared first on Time+Tide Watches.
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