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Results for Marine Chronometer & The Longitude Problem

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RECOMMENDED WATCHING: Tyson Fury can’t go without his Rolex Day-Date 40 Time+Tide
Rolex Day-Date 40 Tyson “The Feb 23, 2020

RECOMMENDED WATCHING: Tyson Fury can’t go without his Rolex Day-Date 40

Tyson “The Gypsy King” Fury is an interesting man … to say the least. And, as of last night, the Brit is once again the boxing Heavyweight Champion of the World, dominating Deontay Wilder for seven rounds before finishing the American with a ruthless onslaught that left Wilder’s corner with no choice but to throw … ContinuedThe post RECOMMENDED WATCHING: Tyson Fury can’t go without his Rolex Day-Date 40 appeared first on Time+Tide Watches.

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Omega Introduces the Constellation Co‑Axial Master Chronometer 39 mm SJX Watches
Omega Introduces Jan 17, 2020

Omega Introduces the Constellation Co‑Axial Master Chronometer 39 mm

After having modernised the Constellation for ladies two years ago, Omega has just done the same for the men’s model, revamping the watch inside and out. Now the full range of Omega’s bestselling model line – the Constellation is likely the most popular watch model in China – has been facelifted. The new gents’ Constellation Co‑Axial Master Chronometer line-up is 26 models strong, all of which share the same basic specs. While the signature Constellation design has been retained, the case and bracelet has been sharpened with subtle improvements that given it a substantially different look. And the case is also larger, at 39 mm instead of the 38 mm of the earlier generation. But most importantly, the new model is equipped with a Master Chronometer movement containing all of Omega’s latest tech. Nip and tuck Available in steel, yellow gold, Sedna gold as well as two-tone combinations, the new Constellation retains the classic barrel shape with concave facets at the top and bottom lugs, as well as the four bezel “claws” at three and nine o’clock. The overall design is, in short, fundamentally the same, but it has been improved in finishing and style, inside and out. The lines and surfaces of the case and bracelet are now cleaner and more pronounced, at the same time accentuated with improved finishing. While the bezel claws keep their traditional polished finish, most of the other surfaces are now brushed, with the case and bracelet featuring polished be...

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In-Depth: Quantifying Performance and Trade-Offs in Movement Design SJX Watches
Omega cal 47.7 observatory chronometer Jan 14, 2020

In-Depth: Quantifying Performance and Trade-Offs in Movement Design

There are a lot of traditions in the luxury watch industry. From the use of pegwood to polish bevels, to the Roman “IV” rendered as “IIII”, the culture of watchmaking is full of interesting customs passed down over generations. But the most fundamental tradition remains the reliance on incremental improvements towards better timekeeping. “Better” might mean absolute performance measured over a defined period such as an observatory trial (the objective of the superstar régleurs), or reliable long-term performance on the wrist. Regardless, for almost four hundred years the quest for better precision was the guiding principle of the trade. To paraphrase from historian David S. Landes’ Revolution in Time, “… it has always been the rule that the quality of [a watch] is a function of [its] precision.” Omega cal. 47.7 observatory chronometer, where the barrel and balance occupy almost all of the diameter. Image – Omega Today, some 50 years after mechanical timekeepers were left in the dust by their “better” electronic brethren, some makers of mechanical watches are more pious in their observance of this traditional approach to incremental improvement than their competitors.  And if we look carefully, we can quantify this difference in approach by looking at how different watchmakers choose to use the available energy within their movements. Our interest was to find a way to quantify which watchmakers are making high-performance timekeeping choices and ...

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Ulysse Nardin Introduces the Marine Torpilleur Monaco Yacht Show SJX Watches
Ulysse Nardin Introduces Sep 26, 2019

Ulysse Nardin Introduces the Marine Torpilleur Monaco Yacht Show

First introduced two years ago as an entry-level model styled on vintage marine chronometers, the Marine Torpilleur has just received an upgrade. The Marine Torpilleur Monaco Yacht Show is a limited edition fitted with a grand feu enamel dial, created to mark the watchmaker’s sponsorship, now in its 11th year, of the annual yachting event in Monte Carlo harbour. While the standard model has a brass dial, the Monaco edition has a three-part dial made of vitreous enamel that’s fired in an oven – a desirable feature that increases its retail price by a modest 20% or so. Like all of Ulysse Nardin’s enamel dials, it is produced by Donze Cadran, a subsidiary of the watchmaker that’s one of the few dial makers in Switzerland able to make fired enamel dials in substantial numbers. An old school dial The dial starts out as a copper disc that is covered with white enamel powder that’s then baked in a small oven, several dials at a go, to melt the enamel and fuse it to the dial. The dial has two apertures for each of the sub-dials, which are separate pieces that are covered in grey enamel and fired separately. After they are fired, the dials are printed with enamel markings, resulting in another trip to the oven to set the markings. Then the apertures on the main dial, as well as the edges of the sub-dials, are filed by hand to ensure a perfect fit with each other. Once complete, the sub-dials are soldered to the main dial. The dial is marked “09.19” – the m...

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What is the Rolex Superlative Chronometer Standard and why does it matter? Time+Tide
Omega has been steadily touting Apr 21, 2019

What is the Rolex Superlative Chronometer Standard and why does it matter?

Editor’s note: Timekeeping standards are suddenly cool again. Omega has been steadily touting the benefits of their Master Chronometer certification, Patek has their own standards, and Rolex recently upped their game with the Superlative Chronometer Standard. But what is it? This article from a while back explains everything you need to know. Since 1951, nearly … ContinuedThe post What is the Rolex Superlative Chronometer Standard and why does it matter? appeared first on Time+Tide Watches.

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VIDEO: 3 outstanding Breguet watches from Basel 2017, including the incredible Marine Équation Marchante Time+Tide
Breguet watches from Basel 2017 May 1, 2017

VIDEO: 3 outstanding Breguet watches from Basel 2017, including the incredible Marine Équation Marchante

Breguet may not have had the largest collection on display at Basel, but they certainly had one of the most complex. As well as some handsome new additions to the Classique family, Breguet released an epic new grand complication – the Marine Équation Marchante 5887, a completely new watch boasting a perpetual calendar, tourbillon power … ContinuedThe post VIDEO: 3 outstanding Breguet watches from Basel 2017, including the incredible Marine Équation Marchante appeared first on Time+Tide Watches.

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HANDS-ON: The Bell & Ross BR 01 Instrument de Marine - an eighteenth century take on their classic square pilot Time+Tide
Bell & Ross BR 01 Instrument de Sep 30, 2016

HANDS-ON: The Bell & Ross BR 01 Instrument de Marine - an eighteenth century take on their classic square pilot

If Bell & Ross’s Skull Bronze implicitly referenced the golden age of exploration with its nautical case material, the BR 01 Instrument de Marine is far more explicit in its influence. This distinctive watch is inspired by marine chronometres, naval timekeeping devices that were crucial for navigation in a pre-electronic age – the eighteenth century … ContinuedThe post HANDS-ON: The Bell & Ross BR 01 Instrument de Marine – an eighteenth century take on their classic square pilot appeared first on Time+Tide Watches.

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Shaping A Century Revolution
Vacheron Constantin s tonneau-shaped watch, the Malte Sep 24, 2012

Shaping A Century

Vacheron Constantin’s tonneau-shaped watch, the Malte, celebrates 100 years with two new models It’s been a century since Vacheron Constantin introduced its first tonneau-shaped wristwatch - which was probably among the first series-produced wristwatches ever made, as 100 years ago, in 1912, the wristwatch was still very much a novelty, tonneau or otherwise. The tonneau shape […]

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Photo Report: Watch Spotting At The Hodinkee Happy Hour [June 2026] Hodinkee
F.P. Journe Chronomètre Souverain Jul 7, 2026

Photo Report: Watch Spotting At The Hodinkee Happy Hour [June 2026]

The third time is the charm, as we recently hosted the third edition of what's quickly becoming a regular fixture on the calendar—Hodinkee Happy Hour. Grotta, our local watering hole, was the venue this time around, and the room delivered the same energy as always. Great conversations, great company, and no shortage of great watches to look at—a few of which you'll see below. If you made it out, thank you for coming. If not, we'll be doing it again at the end of July. Follow us on Instagram to be the first to know when RSVPs open.  Blancpain Léman Perpetual Calendar Flyback Chronograph A Cartier Tank Basculante in it's natural form... ... and in motion. Alex Chou wearing his A. Lange & Söhne Lange 1. Katie Penner, of Watches of Switzerland, and Hodinkee Video Editor Max Rosen. A trio of Ressence. A look at a F.P. Journe Chronomètre Souverain (on bracelet, no less) from the front... ... and the back. Vertex M36 Desert Edition. A little two-tone love for the Zenith Chronomaster Sport... And Rolex Datejust. Rolex Submariner. Rolex Cosmograph "Alcaraz" Daytona on an Oysterflex bracelet. Vacheron Contantin 333. A Swiss "Chronographe Suisse" Chonograph... (Swiss, chronograph, Swiss, chronograph, swiss...) Omega Seamaster De Ville and a good ol' pie-pan Omega Seamaster. Panerai Luminor Marina. Right, Editor-in-Chief James Stacey is wearing his DWC Terra. Urwerk UR-120.

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The Business of Watches Podcast: Q & A Episode - Your Business Questions Answered By The Hodinkee Team Hodinkee
F.P. Journe Souscription Chronomètre à Résonance Jun 17, 2026

The Business of Watches Podcast: Q & A Episode - Your Business Questions Answered By The Hodinkee Team

This week on The Business of Watches, we take your questions on the business of timekeeping. We're joined by a swath of the Hodinkee team, including Editor-in-Chief James Stacey, Senior Editor Mark Kauzlarich, and Hodinkee Editor TanTan Wang.  We're answering your questions and marking 30 episodes of BoW. You submitted some excellent questions, including how changes in 3D printing technology will impact watch movement manufacturing, whether watch brands consider enthusiasts' preferences in their design and release schedules, and what the future of multi-brand watch boutiques looks like.  There's plenty of watch business and strategy to discuss, and we hope you enjoy the conversations. Be sure to leave any thoughts or questions in the comments section, and we'll do our best to respond. Want to subscribe so you never miss an episode? This new show is being published to the original Hodinkee Podcasts feed, so you can subscribe wherever you find your podcasts, including Apple Podcasts, Spotify, or TuneIn. Show Notes1:18 F.P. Journe Souscription Chronomètre à Résonance Achieves $13.9 Million – Becomes Fifth Most Expensive Wristwatch Ever Sold (Hodinkee)2:35 Kari Voutilainen 2:47 Marteau: The Heat Wave4:08 The Barrelhand Monolith Has Landed (Hodinkee) 11:45 Ming Polymesh (Hodinkee) 12:40 Seiko Watch Corporation President Akio Naito (The Business of Watches) 13:10 Peanuts Watches by Citizen (collectpeanuts.com) 15:03 Timex 15:50 We Criticize The Wrong Thing When We Attack ...

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The COSC Introduces the New Excellence Chronometer Certification Worn & Wound
Tudor as well as other Feb 12, 2026

The COSC Introduces the New Excellence Chronometer Certification

The Contrôle Officiel Suisse des Chronomètres (COSC, the body responsible for certifying watch movements as Swiss chronometers) has just announced a new chronometry standard that will be rolled out over the course of 2026. The news comes at a time when the COSC has some competition for timekeeping certifications, most notably the METAS certification (which first requires a watch movement to be COSC certified) used by Omega and Tudor, as well as other certifications provided by the brands themselves.  The new COSC certification is being framed as an additional level of certification that will accompany the familiar “Certified Chronometer” tag that is seen on the dials and paperwork of millions (literally) of watches that have been put through the COSC paces over the years. The new “Excellence Chronomenter” certification provides an additional layer of guarantee of reliability that goes beyond simple accuracy. As a refresher, COSC certification certifies the movement is working at an optimal level, not a fully cased watch. To achieve a Certified Chronometer certification, a movement must show average accuracy of -4 to +6 seconds per day over a 15 day period, tested across 5 positions and 3 temperatures.  The Excellence Chronometer certification tightens the accuracy threshold from a spread of 10 seconds in total to 6 (-2 to +4 seconds per day). It also adds metrics for magnetic resistance and power reserve verification in fully cased watches. According to the COS...

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The Greatest Horological Masterpieces of All Time: Breguet’s Marie Antoinette Watch and Its Impact on Horology Worn & Wound
Breguet s Marie Antoinette Watch Nov 25, 2025

The Greatest Horological Masterpieces of All Time: Breguet’s Marie Antoinette Watch and Its Impact on Horology

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. Few watches in history have captivated the world quite like Breguet No. 160, often referred to as the Marie Antoinette Watch. Commissioned in 1783, this masterpiece of horology was intended as the ultimate expression of luxury, precision, and mechanical complexity. Crafted by Abraham-Louis Breguet, the legendary Swiss watchmaker, it would take over 44 years to complete, long after Marie Antoinette’s tragic execution and Breguet’s death. Marie Antoinette was an Austrian princess and the wife of King Louis XVI. Born on the 2nd November 1755 in Vienna, Austria, she was the 15th child of Empress Maria Theresa of Austria and Emperor Francis I, Holy Roman Emperor. She grew up in the lavish Schönbrunn Palace centre of the court of Vienna, surrounded by wealth, music, and political intrigue. Marie Antoinette with a Rose. Elisabeth Louise Vigée Le Brun, 1783. Oil on Canvas. Image courtesy of The Metropolitan Museum of Art The Palace of Versailles was a major site of scientific thinking in the 17th and 18th centuries. It hos...

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Zenith x Kari Voutilainen x Phillips Calibre 135 Observatoire: 10 of the World’s Highest Precision, Competition-Winning Chronometer Movements Ready for the Wrist - Reprise Quill & Pad
Zenith x Kari Voutilainen x Sep 2, 2023

Zenith x Kari Voutilainen x Phillips Calibre 135 Observatoire: 10 of the World’s Highest Precision, Competition-Winning Chronometer Movements Ready for the Wrist - Reprise

After seven decades carefully stored away in the Zenith archives, ten of the original chronometry competition-winning movements find their way into a limited set of new watches thanks to Phillips, legendary independent watchmaker Kari Voutilainen, and Zenith's current management.

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Barbier-Mueller Returns with the Mosaïque II SJX Watches
F.P. Journe Chronomètre Souverain movement – Jun 29, 2023

Barbier-Mueller Returns with the Mosaïque II

In 2017, the original Barbier-Mueller Mosaïque made its first public appearance at Only Watch. The collaborative efforts of longtime friends Stéphane Barbier-Mueller and François-Paul Journe, one being the preeminent independent watchmaker and the other a member of one of a Swiss real estate dynasty, this was an unexpected and rather pleasant surprise. Now, the pair have returned with the Mosaïque II, follow up to their initial offering, sticking to the same principles as before, but with the eye of watch designer Eric Giroud.  Initial thoughts Those who are fans of the original will be pleased to see all of the main traits have been carried over to this latest version. The stone work on the dial, case and hinged caseback is all there, and the two hander runs on the F.P. Journe Chronomètre Souverain movement – in fact, it is essentially an elaborately inlaid Chronomètre Souverain. If anything, they have elevated their previous efforts by incorporating more types of semi-precious stones in order to execute Mr. Giroud’s design. While Mr Giroud’s eye has given the Mosaïque II a different feel from its predecessor, the new watch still reflects Mr Barbier-Mueller’s interest in arts and culture, which was the basis for the original Mosaïque. Besides being a shareholder in F.P. Journe, Mr Barbier-Mueller is also a member of the family that established the Barbier-Mueller Museum in Geneva that’s famous for its world-class collection of tribal art. The original M...

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Insight: Daniels’ Co-Axial Escapement, an Evolution of the Fasoldt Chronometer SJX Watches
Omega Feb 21, 2023

Insight: Daniels’ Co-Axial Escapement, an Evolution of the Fasoldt Chronometer

In the quest for precision chronometry in a mechanical watch, perhaps no other component is as crucial as the escapement – often consisting of an escape wheel and lever that engage with the oscillating organ. The history of watchmaking recounts many an attempt at inventing a better-performing escapement, with some attempts naturally more successful than others. By the 20th century, the watch industry had settled upon the Swiss lever escapement, which has proven itself to be a reasonably solid performer and crucially, one fit for mass production. However, in the latter decades of the century, one English watchmaker attempted to challenge the industry status quo. In 1974, George Daniels invented the “co-axial escapement”, a seemingly novel and practical escapement of his own design that was conceived as an functionally superior alternative to the Swiss lever escapement. Daniels’ invention fulfilled his ambition, at least in part, when it was sold to Omega and then successfully industrialised starting in 1999; today it is found in hundreds of thousands of movements that Omega produces each year. The latest iteration of the Omega Speedmaster Moonwatch is kitted out with the co-axial escapement With the merits of the co-axial escapement having been proven in part by its large-scale adoption, my aim here is not to examine its intrinsic qualities, but rather delve into its development. Specifically I will explore the fact that the co-axial escapement might not be an ent...

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INTRODUCING: The Jaeger-LeCoultre Polaris Mariner Memovox is an alarmingly different type of Polaris Time+Tide
Jaeger-LeCoultre Polaris Mariner Memovox Oct 1, 2020

INTRODUCING: The Jaeger-LeCoultre Polaris Mariner Memovox is an alarmingly different type of Polaris

Although it’s never really taken off as an uber-popular complication like a chronograph or moonphase, the alarm function of JLC’s Memovox watches has, since they were first unveiled in 1968, been exceedingly practical. But it’s a complication that’s usually been found in the watchmaker’s daintier, and perhaps less practical, dress watches. This has meant that … ContinuedThe post INTRODUCING: The Jaeger-LeCoultre Polaris Mariner Memovox is an alarmingly different type of Polaris appeared first on Time+Tide Watches.

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INTRODUCING: The Jaeger-LeCoultre Polaris Mariner Date, is a bolder, more confident move for the Polaris Time+Tide
Jaeger-LeCoultre Polaris Mariner Date Sep 30, 2020

INTRODUCING: The Jaeger-LeCoultre Polaris Mariner Date, is a bolder, more confident move for the Polaris

Jaeger-LeCoultre is widely regarded as making some of the finest dress watches on the market. But for those not familiar with the Le Sentier firm’s full collection, JLC also makes a very good stainless steel sports watch – the Polaris. And now the legacy watchmaker has decided to up the ante with the Polaris, broadening … ContinuedThe post INTRODUCING: The Jaeger-LeCoultre Polaris Mariner Date, is a bolder, more confident move for the Polaris appeared first on Time+Tide Watches.

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You Are There: Visiting The L.A. Mayer Museum For Islamic Art In Jerusalem, Home Of The Breguet No. 160 ‘Marie Antoinette’ Quill & Pad
Breguet No 160 ‘Marie Antoinette’ May 30, 2020

You Are There: Visiting The L.A. Mayer Museum For Islamic Art In Jerusalem, Home Of The Breguet No. 160 ‘Marie Antoinette’

When Bhanu Chropra visited Israel on a business trip in 2019, a colleague suggested a short visit to see the historically important sites in Jerusalem, and knowing his passion for horology said that he had a special surprise for him: visiting the L.A. Mayer Museum for Islamic Art. The museum holds one of the world’s most horologically significant pocket watch, clock, and automaton collections, and the star of the show is Breguet No. 160, aka “the Marie Antoinette.”

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Introducing: The Aria Manufacture Chronometer From Formex Hodinkee
Formex What We Know Jun 1, 2026

Introducing: The Aria Manufacture Chronometer From Formex

What We Know The last time I covered something from Formex was over a year ago, when the brand released a highly finished, full-ceramic sports watch, complete with a ceramic bracelet and even a ceramic micro-adjust clasp, at an unrivaled price point. Today, the brand continues its upmarket trend with a brand-new watch design called the Aria. The Aria takes the form of a broad, integrated-bracelet design in full grade 5 titanium. The 40mm case feels broader than normal, thanks to an impressively thin case height of 6.9mm, even though the lug-to-lug is still quite reasonable at 45.45mm. While the silhouette gives a smooth look, there's quite a bit of contrasting finishing going on here, with brushing of the titanium case and bracelet links done entirely by hand. Though the styling certainly leans towards its identity as a bold sports watch, there's a lot of subtlety in the design, for example, with the individual bracelet links being slightly curved or the extra dimensionality of the layer of titanium peeking out from each link's milled-out spaces. The clasp includes Formex's proprietary micro-adjust system, which provides extra space on both sides of the bracelet by pulling or pushing each side. There are three dials for the Aria: "Selva Green," "Ardesia Grey," and "Denso Blue." All three have a certain muted look to the hue, matching the slightly darker nature of titanium. Dimensionality is achieved through contrasting indices in rose-gold coloring, set on applied raised p...

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