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Tourbillon Watches · Page 9

Review: the Zelos Comet 39 ‘MOP’ Worn & Wound
Nov 17, 2025

Review: the Zelos Comet 39 ‘MOP’

Singaporean independent brand Zelos is known for their colorful and texture-forward dials that strike a nice balance between affordability and unique design. Each new creation seems to drive their overall image forward in eclectic ways that keep the brand from fitting too rigidly into any one box. While Zelos is often associated with their sub $1,000 tool watches, they have made spectacular forays into the space of haute complications and uncommon materials in recent years. Their release of the Mirage in 2020, a watch that featured a tourbillon at a competitive $11,000 pricepoint, and their work using tantalum as a case material, is proof that the brand is committed to stretching the imagination regarding what a microbrand is capable of.  Their newest release, the Comet 39, joins the ranks of the recent trend of stone dials we’ve seen permeating the hobby in the past few years. Since the trend is fairly new, my experience with stone dials is limited, and I was looking forward to getting hands-on with this piece. I was lucky to be able to pick up this review watch in-person at the Windup Watch Fair in New York City a few weeks ago while I was visiting. Complementary sizing by David Lane Design at Windup allowed me to wear the watch around the city during my trip and get a sense for how it moved with me during high-volume days. The Mother of Pearl (MOP) edition is one in a series of three Comet watches in the brand’s new Comet 39 line, all of which are crafted with vari...

Highlights: Independent Watchmaking at Phillips Hong Kong Fall 2025 SJX Watches
Nov 17, 2025

Highlights: Independent Watchmaking at Phillips Hong Kong Fall 2025

A window into the early days of contemporary independent watchmaking, the upcoming Phillips Hong Kong auction offers an unexpectedly diverse line-up, including a single-owner collection of 1990s watches. The indie selection ranges from Daniel Roth in the late 1980s to Philippe Dufour’s influential finissage. And the historically-minded enthusiast will also notice the catalog includes work from an era when star independent watchmakers, such as Louis Cottier, counted brands as their clients. Lot 982 – Daniel Roth Ref. 2187 Tourbillon “Double Face” After helping establish Breguet as a Swiss watchmaker, Daniel Roth established his eponymous brand in 1988 with his inaugural model being the ref. C187/2187, a tourbillon wristwatch with two faces. The front indicates the time and showcases the tourbillon at six o’clock, while the reverse is home to the date and power reserve indicator. Despite the strikingly exotic look for the time – remember this was the late 1980s – the tourbillon actually employs the familiar Lemania tourbillon calibre, unsurprising given that Mr Roth helped with the construction of the calibre while he was at Breguet. While the bones are Lemania, the aesthetic is uniquely Daniel Roth. The grey dial has a pinstripe guilloche while the three-armed seconds hand indicates the time on a three-layer scale. Just last year, Louis Vuitton resurrected the Daniel Roth marque with a new generation of the iconic tourbillon powered by an all-new calibre deve...

Hands-On Review Of The New Zenith DEFY Skyline Tourbillon WatchAdvice
Nov 15, 2025

Hands-On Review Of The New Zenith DEFY Skyline Tourbillon

A tourbillon with attitude and a dial that refuses to be ignored. Zenith takes the DEFY Skyline to a whole new level with this rose-gold powerhouse. Bold, modern, and seriously impressive on the wrist! What We Love The combination of a brick-red dial with 18kt rose gold is the perfect combination. Rich, warm, and instantly eye-catching. High-frequency movement and a flying tourbillon is an extremely rare combination that Zenith has executed with some serious technical finesse. From the mirror-polished chamfers to the brushed facets and the rose-gold rotor, everything feels intentional, premium, and beautifully executed. What We Don’t Limited versatility when on the full-gold bracelet. It pushes the watch firmly into “special occasion” territory. A premium model with stunning looks and highly technical movement, the price, however, might put the watch out of reach for many. While the rotor and caseback finishing are gorgeous, much of the movement is still closed off, and some collectors may wish for a more open view. Overall Rating: 9.1/10 Value for money: 8.5/10 Wearability: 9.5/10 Design: 9.5/10 Build quality: 9/10 Zenith has long stood as a brand that has valued itself on precision and bold mechanical innovation, all the way from its roots back in Le Locle in 1865. This has become apparent even more with the invention of the El Primero movement, cementing the brand’s position as one of the leaders of high-beat performance. In the modern era of watchmaking, Zenith...

Highlights: Pocket Watches at Phillips Hong Kong SJX Watches
Nov 14, 2025

Highlights: Pocket Watches at Phillips Hong Kong

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...

Hands On: Vacheron Constantin Armillary Tourbillon “Myth of the Pleiades” SJX Watches
Nov 13, 2025

Hands On: Vacheron Constantin Armillary Tourbillon “Myth of the Pleiades”

Vacheron Constantin’s 270th anniversary Les Cabinotiers offerings include a variation on a theme with the Armillary Tourbillon “Myth of the Pleiades”. Having been introduced several years ago, the Armillary Tourbillon is a double-axis regulator with a bi-retrograde time display. This unique iteration is dressed entirely in yellow gold, and intricately hand engraved across all of the case surfaces. Initial thoughts The Armillary Tourbillon “Myth of the Pleiades” channels the same celestial inspiration found on the other 270th anniversary watches into mythological storytelling, blending the brand’s signature double-axis tourbillon with sculptural engraving. Still inspired by the stars, this unique piece takes its theme from the Greek myth of the Pleiades - seven sisters transformed into stars who have guided sailors for millennia. The watch is as much about artistic expression as it is about mechanics. The heavily open-worked dial exposes much of the movement beneath, showcasing the double retrograde system for the hours and minutes. The champagne-toned bridges share the same warm hue as the Cosmica Duo, while the finishing throughout is of the highest standard. The cal. 1990 inside remains as appealing as ever, with skeletonised snail cams and beautiful swirling levers for the retrograde works, all tightly packed on the right side of the dial. The blued hands point to a numbered half-circle sector, which is useful since reading the time on this “halved” fo...

Introducing – Roger Dubuis is Back to Classic Designs, with the new Hommage La Placide Perpetual Calendar Monochrome
Nov 12, 2025

Introducing – Roger Dubuis is Back to Classic Designs, with the new Hommage La Placide Perpetual Calendar

For many years, you’ve probably known Roger Dubuis for its bold, angular watches with openworked movements and tourbillon(s), most of them under the Excalibur collection. And while most are technically very impressive, this isn’t exactly the style that Mister Dubuis defined when he created the brand in the mid-1990s. The earliest watches, known as the […]

Report: Geneva Fall Auctions 2025 SJX Watches
Nov 11, 2025

Report: Geneva Fall Auctions 2025

The just-concluded Geneva auction season was mostly a plateau with several striking peaks and a few lows. The peaks were marked by desirable timepieces that outperformed by far, yet shared little in common with one another in terms of style or period. The peaks ranged from multiple F.P. Journe watches to a diamond-set Patek Philippe ref. 3424/1 “Gilbert Albert” to the Breguet four-minute tourbillon pocket watch from 1809 to the Instagram-ready Patek Philippe ref. 3970 in “salmon” with Breguet numerals. Despite such diverse taste, the small pool of bidders seemed to have one thing in common: they were all focused on a “trophy” watch. The Christie’s saleroom in the Four Seasons. Image – Christie’s With few exceptions, contemporary watches from mainstream brands were cold, while vintage watches were mostly lukewarm – but as always there were exceptions. An Patek Philippe ref. 570 with a black dial signed “E. Gubelin” sold for an impressive CHF419,100 including fees, or US$523,000, at Christie’s, while Phillips sold a Rolex Daytona ref. 6263 “RCO” (or “Oyster Sotto”) for an equally impressive CHF1.39 million, or US$1.73 million – close to the historical peak for the model. A vintage watch that surprised on the downside was the 1927 Rolex Oyster worn by Mercedes Gleitze when she became the first woman to swim the English Channel in 1927 – a landmark in Rolex lore. Though it sold for CHF1.39 million, or US$1.74 million, there was just one bi...

Hands On: Breguet Four-Minute Tourbillon No. 1890 SJX Watches
Nov 7, 2025

Hands On: Breguet Four-Minute Tourbillon No. 1890

In the coming weekend, one of the most important watches of this auction season will go under the hammer at Sotheby’s Breguet’s 250th anniversary thematic sale November 9 – Breguet no. 1890, a pocket watch with tourbillon and natural escapement made by the firm by Breguet while Abraham-Louis Breguet himself still helmed the company. The gilt dial with a regulator-style layout might seem familiar – the recent Classique 7225 reproduces this dial design. In fact, Breguet no. 1890 isn’t the only watch in this style; it belongs to a series of pocket watches all equipped with a four-minute tourbillon and échappement naturel from the early 19th century that were among the finest watches of the time. Breguet built just eight four-minute tourbillons with natural escapement, all of which thankfully survive, and only three with gold dials. King George III ordered the most famous example – almost identical to this watch – during the Napoleonic wars. For context, that would be like Churchhill (who owned a Breguet himself) ordering an A. Lange & Söhne watch during the Second World War. As such, it was signed Recordon, Breguet’s London agent, to disguise its French origins. Whirling About Regulator Almost 225 years ago, the French Ministry of the Interior granted A.-L. Breguet a patent for his most famous creation, the tourbillon – a clever exercise in lateral thinking. For a mechanical watch to keep the same time across all vertical positions the combined balance, st...

In-Depth: Balancing Mainspring Dimensions Inside the Barrel SJX Watches
Nov 7, 2025

In-Depth: Balancing Mainspring Dimensions Inside the Barrel

In a past story, we explained how multiple mainspring barrels can be paired in parallel or in series, for either lengthening a movement’s power reserve or increasing the torque discharged into the going train. In this article we expand on this topic to analyse the inside of the barrel by exploring how mainspring size balancing influences the torque output and power reserve.   Enthusiasts tend to throw around the loosely-defined term “mainspring packing” - especially when criticising a movement’s unsatisfying power reserve. This term refers to how a watchmaker can get a higher power reserve by balancing a spring’s dimensions and the space it occupies inside a barrel. While this sounds simple, the reality is more complicated.  Skeletonised barrel showing the tight coiled mainspring inside the Piaget Altiplano Tourbillon Concept. In order to set the record straight, it’s necessary to analyse the topic thoroughly. This requires getting a bit technical, but an interpretation is included for those less interested in the underlying maths. This theory-heavy deep-dive tries to unravel the concept of mainspring packing and explores why optimisation is not a very straightforward business. The core elements This section covers the basics of mainspring and barrel geometry and establishes their relation with power reserve and torque. In order to see how specific dimensions affect both torque and power reserve, we will resort to some known functions and a little geometric...

J.P. Morgan Jr.’s Watches Emerge, Including First-Ever Cartier Mystery Clock SJX Watches
Nov 4, 2025

J.P. Morgan Jr.’s Watches Emerge, Including First-Ever Cartier Mystery Clock

Philips’ upcoming sale in Geneva from November 8-9 includes two timepieces owned by John Pierpont Morgan Jr., widely known as Jack Morgan. Heir to a financial empire, Morgan was the first chairman of what is now JPMorganChase, and more pertinently, inherited the sensibilities of his father, J. Pierpont Morgan Sr., in collecting and gifting. Morgan Sr. was a collector on a grand scale, and across categories. The catalogues of his collections spanned volumes – two books for Chinese porcelain, four for miniatures, and a single volume for his watches and clocks, albeit a 350-page tome that weighed almost 6 kg in its original edition. The penchant for collecting was passed on to Jack Morgan, who evidently had sharp tastes in watches and clocks. The two timepieces going on the block at Phillips illustrate that. One is the first-ever Cartier mystery clock, a Model A sold to Morgan in 1913. And the other is one example of the “Morgan caliper”,  a series of minute repeating, split-second chronograph, tourbillon pocket watches made for J.P. Morgan & Co., which were gifted by Morgan Sr. and Jack Morgan to the firm’s partners and important associates. Titans of finance In 1913, Louisiana senator Arsène Pujo formed the Pujo Committee to investigate the growing concentration of financial power in the United States. The committee found that an inner circle of partners at J.P. Morgan & Co. and its two largest proxies held 341 directorship positions across the boards of 34 majo...

Introducing – The New CIGA Design Everest Summit Central Tourbillon Monochrome
Oct 30, 2025

Introducing – The New CIGA Design Everest Summit Central Tourbillon

CIGA Design has carved out a distinct lane in contemporary Chinese watchmaking: bold industrial design, visible mechanics, and aggressive value. Founded by industrial designer Zhang Jianmin, the brand built early recognition with skeletonised mechanical pieces and unconventional case forms, then vaulted onto the global stage with the award-winning Blue Planet, cementing its credibility beyond the […]