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Results for Spring Detent Escapement

655 articles · 58 videos found · page 14 of 24

First Look – The New Armin Strom Minute Repeater Resonance 12:59 First Edition Monochrome
Armin Strom Minute Repeater Resonance 12:59 Apr 14, 2026

First Look – The New Armin Strom Minute Repeater Resonance 12:59 First Edition

Armin Strom is an undisputed champion of watchmaking in consistently exploring the physics of resonance. Since the debut of its Mirrored Force Resonance in 2016, the brand has developed a recognisable mechanical signature based on dual oscillators linked by a clutch spring. The new Minute Repeater Resonance 12:59 First Edition revisits one of its most […]

Laurent Ferrier’s Sport Traveller is Ready for Takeoff SJX Watches
Patek Philippe 5164 but only Apr 14, 2026

Laurent Ferrier’s Sport Traveller is Ready for Takeoff

Laurent Ferrier’s Sport Traveller is a meaningful addition to its collection of sport watches. While the brand’s convenient push-button dual-time complication is not new, it has never been available in the go-anywhere, do-anything format of the Sport line - where it arguably makes the most sense. It’s also the first time this travel complication has been paired with one of the brand’s lever escapement movements, a change that should provide the resilience against shocks that one expects from a sport watch. Initial thoughts The sport has proven to be one of Laurent Ferrier’s most popular watches, introducing the brand to a wider audience by combining sports watch ruggedness with the high-horology independent watchmaking that the brand has become famous for. In this sense, the Sport Traveller is similar in philosophy to other luxury sport watches. That said, few manage to elevate the concept quite as high as Laurent Ferrier. The A. Lange & Söhne Odysseus and F.P. Journe Octa Sport Titanium are natural peers, as is the Patek Philippe 5164, but only the latter offers a travel time complication. The Sport Traveller is made from grade 5 titanium for a featherweight wrist presence, and debuts in what is likely to be a popular grey-on-grey colourway. Even the Sport Traveller dial text is grey, blending in with the dial to help keep the clutter to a minimum. The cal. LF275.01 continues the monochromatic look with grey-coated bridges and a solid platinum oscillating wei...

Hands-On With The New Oris Star Re-Edition Fratello
Oris Star Re-Edition Today Oris Apr 14, 2026

Hands-On With The New Oris Star Re-Edition

Today, Oris introduces its Star re-edition. It’s a celebration of the very first Oris watch to feature a lever escapement, from 1966. But “Oris Star” sounds familiar, doesn’t it? Back in 2023, we collaborated with the company from Hölstein on the Fratello × Oris Divers Sixty-Five with “Star” on the dial, just like its 1968 […] Visit Hands-On With The New Oris Star Re-Edition to read the full article.

Introducing – The Arnold & Son UltraThin Tourbillon Onyx Edition Monochrome
Bulgari s 1.95mm Octo Finissimo Apr 10, 2026

Introducing – The Arnold & Son UltraThin Tourbillon Onyx Edition

Arnold & Son’s UTTE – Ultra Thin Tourbillon Escapement – debuted at Baselworld 2013, powered by the ultra-thin 2.97mm hand-wound calibre A&S;8200. Recognised as the world’s thinnest tourbillon wristwatch, the title was stolen from Arnold & Son just one year later with Bulgari’s 1.95mm Octo Finissimo Tourbillon. Still remarkably thin, Arnold & Son’s Ultrathin Tourbillon […]

Into The Pacific With The Blancpain × Swatch Scuba Fifty Fathoms Ocean Of Storms Fratello
Blancpain × Swatch Scuba Fifty Apr 4, 2026

Into The Pacific With The Blancpain × Swatch Scuba Fifty Fathoms Ocean Of Storms

The Scuba Fifty Fathoms Ocean of Storms is a wonderful holiday watch. Providing a mechanical caliber and the wearing experience of a Blancpain, this Swatch is a whole lot of fun. It’s good that this plasticky watch has a decent level of waterproofness too. Sydney’s spring has been a tempestuous affair to say the least. […] Visit Into The Pacific With The Blancpain × Swatch Scuba Fifty Fathoms Ocean Of Storms to read the full article.

A Wishlist for Watches & Wonders 2026 SJX Watches
Patek Philippe Grand Seiko Mar 9, 2026

A Wishlist for Watches & Wonders 2026

Each year I find it surprisingly difficult to crystalise what I want to see from Watches & Wonders – perhaps I find it hard to hope for things I know will never come. Sometimes dreams aren’t logistically possible. For example, a compact Spring Drive chronograph probably isn’t reasonable given Grand Seiko already has its hands full scaling production of another new Spring Drive movement. At other times, imagination is bound by brand strategy: Cartier could easily steal the show with a quartz Crash Must priced along the same lines as a Tank Must – but never will. But I believe that the following watches, which I’d like to see from Patek Philippe, Grand Seiko and Credor, and Tudor are plausible enough to hope for. The following images were created without the use of generative AI. Patek Philippe In 2023, Patek Philippe launched the ref. 5316/50P, a minute repeating tourbillon with retrograde perpetual calendar and smoked sapphire dial. It remains among the brand’s best complicated offerings, other than the ref. 6301p, at least in my view. Last year Patek Philippe followed up with the ref. 6159G, which featured a smoked sapphire dial and the same perpetual calendar on a more pedestrian base movement. But if there is one reference more deserving of the smoked sapphire treatment than any other, it is the ref. 5236p in-line perpetual calendar, as imagined below in platinum. In 2021, Patek Philippe revived the historic in-line perpetual calendar, which is strongly asso...

Introducing – A Ruby Stone Dial for the Armin Strom Mirrored Force Resonance Monochrome
Armin Strom Mirrored Force Resonance Mar 2, 2026

Introducing – A Ruby Stone Dial for the Armin Strom Mirrored Force Resonance

In 2016, Armin Strom rocked the watchmaking scene with the release of its Mirrored Force Resonance, an incredible technical breakthrough that miniaturised the centuries-old concept of synchronised motion into the confines of a wristwatch. Using two independent oscillators coupled by a patented resonance clutch spring, Armin Strom breathed life into Christiaan Huygens’ observation that two […]

The 9 Most Accurate Watches for the Precision-Obsessed Teddy Baldassarre
Feb 2, 2026

The 9 Most Accurate Watches for the Precision-Obsessed

Fundamentally, mechanical and quartz movements do the same thing: they both tell thetime. But the ways in which they both do it couldn’t be more different. Not to get into acomparison guide here, but in a nutshell: a mechanical watch is powered by a mainspringthat’s either wound by hand or automatically through wrist movement. Energy is releasedthrough a complex system of gears, an escapement, and a balance wheel that beats steadily back and forth. There’s no battery, just centuries-old engineering refined to an art form. These watches aren’t the most accurate, but accuracy isn’t really the point. Craftsmanship, tradition, and the emotional connection are. Quartz watches, on the other hand, are powered by a battery and use an electrical current to make a quartz crystal vibrate at 32,768 times per second. That vibration is incredibly stable, which is why quartz watches are vastly more accurate and require far less maintenance. They’re practical, reliable, and often more durable for everyday use, as well as being notably more affordable. Neither system is inherently “better,” though. Mechanical watches speak to passion and heritage, while quartz prioritizes precision and convenience. Ultimately, it’s less about the movement inside and more about what you want your watch to represent on your wrist. [toc-section heading="Next-Level Accuracy"] Some watches measure accuracy in seconds per day, others by seconds per month. Butthere also exists a small group of t...

Introducing – The Classic Spirit of the Voutilainen 216TMZ Worldtime Monochrome
Voutilainen Jan 2, 2026

Introducing – The Classic Spirit of the Voutilainen 216TMZ Worldtime

Independent Finnish master watchmaker Kari Voutilainen is regarded as one of the best in his field. Working from his atelier in Motiers, which he founded in 2002, Voutilainen is known for his high-end watches with in-house movements and hand-guilloché dials. His latest watch, the 216TMZ Worldtime, features a movement with a direct-impulse double escapement, first […]

SJX Podcast: Best of 2025 – Surprises SJX Watches
Vacheron Constantin also surprised Dec 31, 2025

SJX Podcast: Best of 2025 – Surprises

Episode 24 of the SJX Podcast covers the surprises and unexpected developments of 2025, a year marked by significant material innovation and bold statements from established brands. In this final episode of 2025, SJX and Brandon discuss Rolex’s landmark Land-Dweller with its revolutionary Dynapulse escapement, Breguet’s experimental magnetic constant-force mechanism that achieved unprecedented precision, and TAG Heuer’s industrialization of carbon hairsprings. Vacheron Constantin also surprised with an extraordinary 150 kg astronomical clock created for its 270th anniversary, temporarily displayed at the Louvre alongside a companion wristwatch. Thank you to all our listeners for joining us throughout 2025 – happy new year! Listen on Apple Podcasts, Spotify, and Youtube.  

Announced: The Finalists For The Louis Vuitton Watch Prize For Independent Creatives 2025–2026 Fratello
Louis Vuitton Watch Prize Dec 25, 2025

Announced: The Finalists For The Louis Vuitton Watch Prize For Independent Creatives 2025–2026

The final round of the second Louis Vuitton Watch Prize competition will commence in the spring of 2026. The initiative aims to support and celebrate independent watchmakers who challenge convention. It highlights creativity, technical mastery, and a strong personal vision. That’s not just a clever way of connecting the brand name to some serious horological […] Visit Announced: The Finalists For The Louis Vuitton Watch Prize For Independent Creatives 2025–2026 to read the full article.

Best of 2025: Surprises and Unexpected Developments SJX Watches
Rolex Land-Dweller Dec 23, 2025

Best of 2025: Surprises and Unexpected Developments

From one-off artistic creations to new escapement technologies, 2025 delivered more than its share of surprises and unexpected developments. Brands with institutional research and development departments led the way with unexpected material breakthroughs, while Geneva’s oldest watchmaker surprised (and delighted) with a clock of astronomical proportions. Rolex Land-Dweller and Dynapulse Escapement - SJX Given its institutional nature, Rolex rarely surprises, but when it does, the brand does so in a big way. The Land-Dweller was unquestionably one of the biggest debuts from Rolex in a long time. The integrated bracelet design is certainly a departure from the prevailing house style, but the Land-Dweller is a landmark mainly for the movement inside, the cal. 7135 that boasts the Dynapulse escapement. While Rolex movements have enjoyed largely incremental improvements for years, the cal. 7135 in the Land-Dweller is a radical break because it’s an all-new movement with an all-new escapement. The Dynapulse escapement is one of the most forward-thinking inventions by Rolex, arguably ever. A double-wheel, detached and indirect-tangential impulse escapement, the Dynapulse is arguably among the most advanced escapements on the market today – and the cal. 7135 is probably the most precise self-winding movement on the market. More crucially, it is being produced at scale. A new escapement is an achievement, but a new escapement manufactured in large numbers is a bona fide fea...

Seiko Pours a “Root Beer” Prospex LX GMT SJX Watches
Grand Seiko Dec 18, 2025

Seiko Pours a “Root Beer” Prospex LX GMT

Seiko has introduced the Prospex LX GMT SNR058, a luxury-leaning sport watch inspired by the constellation and intended exclusively for the US market. Executed in Zaratsu-polished titanium with Diashield coating, it pairs a richly textured gradient dial with a Spring Drive GMT movement more commonly associated with Grand Seiko. In doing so, the SNR058 blurs the line between Seiko and its grander cousin, inviting comparison not on branding, but on tangible quality. Initial thoughts According to Seiko, this US-exclusive special edition evokes the North America Nebula in the Cygnus constellation, named for its resemblance to the continent. It is, presumably, a coincidence that the dial also recalls a frosted glass of root beer; arguably a more recognisable symbol of the US market than any nebula. Regardless, either reading feels apt for a United States-only edition. On paper, the Prospex LX line blurs the line between the Seiko and its grander cousin. The collection holds up well next to similar watches from Grand Seiko, pairing a more assertive, utilitarian aesthetic with a more cohesive bracelet design. Branding aside, it also presents stronger value proposition thanks to its Diashield-coated titanium case and bracelet; the equivalent models from Grand Seiko come dressed in heavier stainless steel, which scratches (but can also be refinished) more easily. The Prospex LX GMT also benefits from a toolless micro-adjustment system for the bracelet, something increasingly sought...

First Look – Lederer Inverto Titanium 39mm, a Superb Inverted Take on the Central Impulse Chronometer Monochrome
Dec 10, 2025

First Look – Lederer Inverto Titanium 39mm, a Superb Inverted Take on the Central Impulse Chronometer

With the Inverto Titanium, independent watchmaking atelier Lederer refines the 2023 Central Impulse Chronometer InVerto, a large 44mm watch in a blackened case, into a compact, titanium-framed display of one of the most sophisticated escapement architectures in modern watchmaking. It’s a culmination of forty years of mechanical experimentation, distilled into 39mm of pure chronometric artistry, […]

In-Depth: Understanding Isochronism and Oscillators SJX Watches
Breguet overcoils Dec 10, 2025

In-Depth: Understanding Isochronism and Oscillators

The beginning of 2025 marked the 350th anniversary of the hairspring, the invention that made portable precision timekeeping possible. To commemorate the occasion, we published a series of deep dives covering the disputes around its invention, the evolution of spring materials over the years and the finer rules of forming Breguet overcoils. This final instalment examines isochronism. Some initial definitions and considerations A proper and universal definition of isochronism is: the property of an oscillatory system to maintain the same period of vibration despite variation in environmental factors. This implies that a vibrational system’s behaviour is inherent and external factors should not influence its frequency.  A few basic terms help frame the discussion. The period, measured in seconds, is the time taken for the oscillator to travel from one extreme position, through equilibrium, and back again. Frequency, measured in Hertz, is the inverse of the period; a system with a constant period can serve as a stable timebase. The amplitude is the distance swept by the oscillator from the equilibrium point to its extreme position. In practical terms, when saying that a sprung balance has an amplitude of 330°, it means the balance wheel rotates a full 330° in one direction from its equilibrium point before swinging back.  Figure I. Anatomy of a sinusoidal wave. In watchmaking parlance, isochronism means that an oscillator keeps the same period, regardless of its amplit...

Omega Co-Axial Movement Explained: A Radical Invention Teddy Baldassarre
Omega Dec 7, 2025

Omega Co-Axial Movement Explained: A Radical Invention

What is a Co-Axial Movement? More specifically, what is the now-famous Co-Axial Escapement that has become a standard feature on most all Omega watches? In short, it's both a radical concept by one of the modern era's most revered watchmaking geniuses and the culmination of a Swiss watch brand's longtime dedication to improving watchmaking accuracy. Here is the story of Omega's co-axial movements.  [toc-section heading="Early Omega Movements"]  While it is best known these days for its signature watch models, like the Speedmaster “Moonwatch” and the James Bond-worn Seamaster, Omega has also been a pioneer in movement-making since nearly the beginning. The company was founded in 1848 by 23-year-old watchmaker Louis Brandt (with family, above) in the Swiss village of La Chaux-de-Fonds. Originally called La Genérale Watch Company, and eventually renamed Louis Brandt et Fils after Brandt’s sons joined the business, it originally produced key-wound pocket watches from parts supplied by local artisans, After the growing company moved from La Chaux-de-Fonds to the more bustling town of Bienne, in the Swiss Canton of Bern, it pioneered a series of industrial watchmaking techniques and also began making its own in-house movements. The first one, called the Labrador, launched in 1885 in a now-legendary series of pocket watches. Nearly a decade later, in 1894, came the company’s chef d’oeuvre, the 19-ligne Omega Caliber, which was notable at the time for its enviable acc...

Introducing – The Breguet Classique Répétition Minutes 7365, the Next Chapter in Sound and Substance Monochrome
Breguet Classique Répétition Minutes 7365 Dec 1, 2025

Introducing – The Breguet Classique Répétition Minutes 7365, the Next Chapter in Sound and Substance

As part of its 250th anniversary celebrations, Breguet closed the year with a grande finale, the Experimental 1 and its innovative magnetic escapement. But there was one more watch as part of the celebratory collection… The Classique Répétition Minutes 7365, a new limited-edition minute repeater rooted in the brand’s heritage while pointing firmly to its […]

Breguet’s Magnificent Magnetic Expérimentale 1 SJX Watches
Breguet s Magnificent Magnetic Expérimentale Dec 1, 2025

Breguet’s Magnificent Magnetic Expérimentale 1

Breguet concludes its 250th anniversary with the brand’s most forward-thinking watch, the Expérimentale 1 that boasts a magnetic, true constant force escapement. Equipped with a frictionless escape wheel and pallet lever driven by magnetic forces, the movement runs at 72,000 beats per hour, or 10 Hz – arguably making the Expérimentale 1 the ultimate Breguet chronometer. Impressively innovative with its use of silicon, magnets, and clever teeth geometry, the limited edition watch also marks the start of the Expérimentale line, a collection that will serve as a platform to debut new complications, technology, and designs. Initial thoughts While some might have been expecting an updated Sympathique, Breguet instead surprised with perhaps the most advanced wrist-borne mechanical chronometer in modern watchmaking. Taking cues from Abraham-Louis Breguet’s own “constant force” escapements, Breguet today harnessed the power of permanent magnets and unique teeth geometry to built a genuinely friction-less, constant torque escapement. In fact, the new escapement appears to be the only truly frictionless and constant force escapement on the market today.  Magnets have been employed in escapements in the past, but this approach was historically unreliable. Breguet appears to have discovered the right formula for a magnetic escapement. Several functioning prototypes were on show at the launch event. Moreover, Breguet chief executive Gregory Kissling explained that the ma...

Complicated Collectors: Gerd Ahrens SJX Watches
Breguet pocket watch No 4763 Nov 26, 2025

Complicated Collectors: Gerd Ahrens

In the autumn of 1948, at Galerie Fischer’s auction house in Lucerne, a young Swiss watchmaker secured Lot 155, a Breguet pocket watch, No. 4763, circa 1848, with a straight-line club-tooth lever escapement. The case, fitted later by E. Brown at George Daniels’s suggestion to employ original movements and parts held in stock, aligned with his purpose. For most collectors, such a purchase might not have represented a pure Breguet. But for Gerd Ahrens, it was something altogether different: the first sentence in what would become a four-century narrative of mechanical ingenuity. Gerd Ahrens in his shop office on Schwanenplatz 7 around 1955. Image – Gerd Ahrens Foundation: a life built on wheels and springs Gerd Ahrens was born on September 18, 1920, in Hamburg, Germany, at a time when mechanical watches represented the pinnacle of portable precision. His father, Otto Ahrens, born in 1877, had already established himself as a highly respected watchmaker. Otto’s path, however, would be marked by the upheavals of the twentieth century. Before World War I, he had operated a successful shop in Paris and had built connections throughout the watchmaking centres of Inner Switzerland. The evidence of his skill was tangible: Otto personally built ten pocket watches, demonstrating not just commercial acumen but genuine mastery of the craft. Then the war came. Otto was forced to close his Paris shop in 1914, and the conflict left him penniless. A trained craftsman of the highest...

Highlights: Complicated Patek Philippe at Christie’s Hong Kong SJX Watches
Patek Philippe Nov 21, 2025

Highlights: Complicated Patek Philippe at Christie’s Hong Kong

Christie’s Hong Kong returns this autumn with an extraordinary offering of rare and important Patek Philippe watches, headlined by a ref. 1518 in yellow gold. The auction is defined by two major private collections, most notably Part 2 of The Chronicle Collection - the successor to this spring’s successful first chapter. From neo-vintage rarities to heavyweight modern complications, the sale presents one of the of the most interesting Patek Philippe selections of the season. Lot 2225 – Patek Philippe Ref. 3979HJ Minute Repeater The story of Patek Philippe’s mastery of the modern minute repeater begins in 1989 with the launch of the ref. 3979 and the calibre R 27 PS. Launched to commemorate the brand’s 150th anniversary, the ref. 3979 was the brand’s first automatic minute repeater, and its first wristwatch to feature a silent centripetal governor, which was still novel at the time. According to the serial number, the present lot was the 47th ref. 3979 to be made, out of approximately 100 units produced over a nine year run. Further distinguishing the current lot is its classical enamel dial, which was a relatively uncommon configuration for this reference. The compact 33 mm yellow gold case is a love letter to classical dress watches. The case itself was made by Ateliers Rèunis, the brand’s own case maker, and was manufactured in the building that now houses the Patek Philippe museum. Today, more than 35 years after its launch, the cal. R 27 PS is still am...

Viridian Starfall: Orient Star’s M34 F8 Date SJX Watches
Seiko Epson Nov 17, 2025

Viridian Starfall: Orient Star’s M34 F8 Date

Among Japan’s best-kept secrets, Orient Star occupies an intriguing middle ground between tradition and technology. Its latest creation, the Orient Star M34 F8 Date Green, captures that duality perfectly by combining an old-school movement with state-of-the-art dial and escapement components drawn from the vast capabilities of its parent company, Seiko Epson. The result is a watch that feels distinctly Japanese in both spirit and execution. The M34’s new green dial is embossed with a hand-engraved stamp and coated with an optical multi-layer film that creates shifting hues without a trace of pigment - an effect more often associated with much costlier watches. Beneath its shimmering surface lies Orient Star’s enduring in-house F8 movement, which continues a lineage that dates back to 1971.   Initial thoughts The dial of the M34 immediately distinguishes it within its segment. Its engraved texture, embossed from a hand-engraved die, gives the surface a natural radiance, while the iridescent green tone - created through a PVD-applied optical multi-layer film - shifts fluidly under changing light. It’s a distinctly upmarket look that signals the depth of the Epson manufacturing ecosystem behind it. The case reflects that same industrial prowess, made entirely in-house within Seiko Epson’s facilities, using 316L stainless steel finished with Sallaz (more commonly known as ‘Zaratsu’) polishing to achieve distortion-free mirrored bevels. The 40 mm size and ...