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Results for Marine Chronometer & The Longitude Problem

42,534 articles · 248 videos found · page 940 of 1427

Bring a Loupe: An Hermès Caleche, A Chromed Angelus, And A Rolex SARU Hodinkee
Jaeger-LeCoultre Jul 17, 2026

Bring a Loupe: An Hermès Caleche, A Chromed Angelus, And A Rolex SARU

We may not be, as Rob Thomas serenaded us way back, seven inches from the midday sun, but hoo boy, however close we are is plenty (I know, I know: 93 million miles). I hope wherever you're reading this is appreciably cooler and/or not too clogged with smoke, and for the dog owners, I hope your canine companion's finally shaken off the terror of the holiday two weeks back. Scorekeeping last week's pick, the Tudor Inter Miami Pink sold for TKTK ($19,500 currently, sells thrs), the Longines Ultra-Chron went for £440, the Jaeger chronograph sells Saturday, and both Rangers are still (implausibly—what are you waiting for?) available. Strays Photo courtesy Aletheia Subastas. If you missed the Tudor Ranger II from a bit back, here's a hell of a nice example. This Jaeger-LeCoultre is the nicest plain jane, solid gold watch I've seen in a bit, and it's powered by a P469/A, meaning you'll have a watch using the same engine that helped tens of thousands of WWII guys stay on time. This Eberhard simply looks like it'd be a fun wear, and sometimes that's plenty, and while this Edox Geoscope 42 is a bit on the complicated side, its fun factor is still real high. For those interested in flexing their maritime bona fides, here's a great-looking near-NOS Heuer Regatta from Hess Fine Art, and, in the same auction, there's also this Rolex Submariner ref. 1680 and this Mk1 Sea-Dweller ref 1665 (both from 1978, if someone's hankering to buy me a birth-year watch). Finally, here's an excellen...

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Maurice De Mauriac And Swiss Tennis Celebrate 130 Years With A New Rallymaster Fratello
Maurice de Mauriac Jul 17, 2026

Maurice De Mauriac And Swiss Tennis Celebrate 130 Years With A New Rallymaster

I have been a Stan Smith (both the man and the shoe) aficionado for as long as I can remember, so getting to sit down with the man himself a few years ago felt like a bucket-list moment. I have Maurice de Mauriac to thank for that introduction. I’ve stayed close to the Zurich brand […] Visit Maurice De Mauriac And Swiss Tennis Celebrate 130 Years With A New Rallymaster to read the full article.

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Cousin Greg teams up with Shinola, a rare Rolex Rainbow Daytona hits AU auction, MB&F; continues its MADness Time+Tide
Rolex Rainbow Daytona hits AU Jul 17, 2026

Cousin Greg teams up with Shinola, a rare Rolex Rainbow Daytona hits AU auction, MB&F; continues its MADness

As Centre Court packed away another fortnight of strawberries, sunshine and relentless television close-ups of celebrity watch spotting, Jannik Sinner finally lifted the Wimbledon gentlemen’s singles trophy to cap off a superb tournament. Elsewhere, it wasn’t quite such a triumphant week for English football fans, whose World Cup dreams came to an abrupt halt this … Continued

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Krayon’s Parhelion is a Halo Watch, Literally SJX Watches
Patek Philippe s sapphire-set Celestial Near-Artic Jul 17, 2026

Krayon’s Parhelion is a Halo Watch, Literally

Krayon, the independent that nearly perfected the sunrise and sunset complication for Anywhere and Everywhere on the planet, applies its no-half-measures approach to gem-setting with the Parhelion. Set with 171 sapphires in a gradient from dark blue to colourless, a dozen of which are a unique “Krayon cut”, the Parhelion is a halo product that seeks to recreate a magical moment the brand’s founders experienced in the arctic. Initial Thoughts Given my affinity for baguette set watches and astronomical complications, I don’t stand much of a chance against the Parhelion, a chilly, high jewellery version of the Anywhere. This isn’t Krayon’s first gemset watch, which would be the Everywhere, but is the best yet. I especially appreciate the creation of a novel fancy cut “Krayon-cut” which preserves the hour marker’s original form, something that is often lost in gem-set versions of originally non gem-set watches. Of course, this only worsens the Anywhere’s only fault – other than lack of summer time adjustment – pushing the Anywhere’s already high (if justifiable) price tag over the half-million dollar mark. That is a lot of money, but it is also a lot of watch, and still well below Patek Philippe’s sapphire-set Celestial. Near-Artic Encouter Caused by sunlight passing through hexagonal ice crystals in high-altitude clouds, parhelia (more commonly, sundogs) are a type of halo that mimics a second, and usually a third sun. The effect is most common, an...

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Nodus and Raven Collaborate on their Fourth TrailTrekker Worn & Wound
Nodus Jul 16, 2026

Nodus and Raven Collaborate on their Fourth TrailTrekker

Nodus and Raven have collaborated once again for their fourth edition of their popular TrailTrekker watch, a sporty GMT with EDC design codes. This new release is perhaps the most EDC oriented yet, with the prominent use of forged carbon fiber front and center on the dial and bezel, as well as lots of decorative lume. It also represents the first time a TrailTrekker has crossed the thousand dollar mark, but this one feels like it’s a step up in terms of its ambition, and seeing all four on the Nodus website side by side, it’s clear the two brands are building out a product line that can be taken in a number of different directions going forward.  The new TrailTrekker Carbon maintains certain core design elements that Nodus and Raven have always adhered to with these watches. The basic principle is relatively simple: it combines the Nodus Contrail’s sporty case profile with Raven’s dial design (most notably in their Trekker series) that prioritizes legibility and functionality above all else. Each TrailTrekker, including the new Carbon version, also makes use of the Miyota 9075 GMT movement, an easy to operate “true” GMT that is a genuinely great option for travel.  A huge part of the appeal of the original TrailTrekker was its unique bead blasted “Clay” colored case finishing. This new edition appears to have a similar vibe, with a gray DLC treatment over the steel case and bracelet that is just a shade or two lighter than solid black. Nodus and Raven hav...

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Video - Inside Schwarz Etienne, Discovering its History and Its Impressive In-House Watchmaking Capacities Monochrome
Schwarz Etienne Discovering Jul 16, 2026

Video - Inside Schwarz Etienne, Discovering its History and Its Impressive In-House Watchmaking Capacities

Headquartered in a beautiful century-old villa in La Chaux-de-Fonds, Switzerland, the fascinating watch brand Schwarz Etienne is your typical independent watchmaking company. The company’s origins date back to 1902, when founding husband-and-wife Paul-Arthur Schwartz and Olga Etienne got married. From then on, the company would grow continuously, with the descendants of the founding duo also […]

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Revealed: Rolex’s Inclined Plane Clock SJX Watches
Vacheron Constantin s La Quête Du Jul 16, 2026

Revealed: Rolex’s Inclined Plane Clock

A recent design patent filing gives us a sneak peek at a mechanical clock from the most unexpected source, Rolex. Last year Rolex debuted the Submariner desk clock; the new clock is more ambitious, an inclined plane clock. In other words, a rolling Rolex. Notably, prototypes of this clock have already been produced: two were on show at the Rolex stand during Watches & Wonders 2026. One sat in the lobby on an upper floor, and another was in chief executive Jean-Frederic Dufour’s office. No photos were allowed of either, a rule strictly enforced by eagle-eyed security guards. The inclined plane clock, sometimes also known as a gravity clock, will be Rolex’s first in-house mechanical desk clock that’s commercially available, and its first skeletonised movement, in a minimalist, architectural package. While yet unnamed, Rolex filed a trademark application for “Haplos” within a few weeks of the design patent. Initial thoughts Twenty twenty-five was dominated by clocks, kicking off with a production version of Patek Philippe’s 31-day desk clock, crescendoing with Vacheron Constantin’s La Quête Du Temps. Even Rolex joined in unexpectedly, with a Submariner desk clock. The adorable Submariner-Date-inspired desk clock. Yes, the bezel is ceramic. No, it does not rotate. But Rolex seems to have more ambitious plans for its desk clock project, including a skeletonised inclined plane clock. A recently published Swiss design patent application gives us a clearer look at t...

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Introducing: Five New Orient Mako 40 Models With Gradient Dials Fratello
Orient Jul 16, 2026

Introducing: Five New Orient Mako 40 Models With Gradient Dials

Orient builds on its sporty Mako 40 line with five new compelling dial colors. The range introduces green, navy blue, brown, gray, and copper dégradé dials, each bringing a different personality to the collection. The last two are available only during the 2026 calendar year rather than being individually numbered limited editions. Brushed stainless steel […] Visit Introducing: Five New Orient Mako 40 Models With Gradient Dials to read the full article.

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Fratello Talks: Watches Every Collector Should Own At Least Once Fratello
Jul 16, 2026

Fratello Talks: Watches Every Collector Should Own At Least Once

All watch collectors’ journeys are different. Some focus on a single brand, while others enjoy exploring as many corners of the hobby as possible. Still, there are certain watches (or even categories of watches) that many enthusiasts seem to encounter sooner or later. They may not become permanent fixtures in every collection, but they often […] Visit Fratello Talks: Watches Every Collector Should Own At Least Once to read the full article.

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Hands On: A. Lange & Söhne Lange 1 Tourbillon Perpetual Calendar “Lumen” SJX Watches
Ming s Jul 16, 2026

Hands On: A. Lange & Söhne Lange 1 Tourbillon Perpetual Calendar “Lumen”

A. Lange & Söhne’s flagship launch for the year, so far, is the Lange 1 Tourbillon Perpetual Calendar “Lumen”. It follows a familiar template, applying the desirable “Lumen” treatment to a complicated, top-of-the-line model. But unlike earlier Lumen editions, the Lange 1 Tourbillon Perpetual Calendar is more than a mere cosmetic makeover. The unique calendar display requires a more complex dial construction, and the movement has been reworked for visual impact. Even though the concept is predictable – and predictably pricey – the Lange 1 Tourbillon Perpetual Calendar “Lumen” is unexpectedly appealing. Initial thoughts This is stating the obvious, but the Lange 1 Tourbillon Perpetual Calendar “Lumen” is clearly the most appealing iteration of the most complicated Lange 1. Visually it is more striking in both light and darkness, with the new look also adding to the intricacy of the dial construction. And because Lange doesn’t do things in half measures when it comes to movements, the L225.1 inside this has been reworked by some margin to solve one of the shortcomings of the original model, a tourbillon that was barely visible. The original Lange 1 Tourbillon Perpetual Calendar was and still is the most complicated version of Lange’s iconic watch design. All perpetual calendar indicators were cleverly incorporated in the Lange 1’s distinctive yet sensible layout. Add to that a tourbillon visible only on the back meant there was a lot going on ins...

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DOXA Introduces their Latest Clive Cussler Limited Edition Diver Worn & Wound
Doxa Introduces their Latest Clive Jul 15, 2026

DOXA Introduces their Latest Clive Cussler Limited Edition Diver

Having lived so far away from us, I have very few memories of my grandfather before his passing. Other than the fact that he was a regular at the local Legion in rural Indiana and liked having westerns on the TV, my memories are mostly sensory: the smell of tobacco, the first sip of beer he let me have when I was still a kid. I can only imagine he, too, considered me a stranger who just happened to share a last name and a few chromosomes here and there. Even still, every year, he would give me a Clive Cussler book. He knew I was a reader, but he was not. My guess is that, in some ways, he wanted me to read the books he would have read, to tell the stories he would have liked. He just never got around to it, I suppose. This is my first memory of Cussler’s books. And while I have read a few of them, mostly when I was younger as a sort of favor to my grandfather, I don’t remember many of the plots. I remember more of who Cussler was as a person: born in the Midwest between the wars, a veteran, and later an author and maritime explorer. My grandfather shared some of those same biographical details, but their lives diverged somewhere in adulthood. Cussler felt like a parallel version of the life my grandfather could have lived – had debt, circumstance, and the family farm not gotten in the way. I was reminded of all of this when DOXA released the new SUB 300 Ti5 Clive Cussler, a limited edition introduced on what would have been Cussler’s 95th birthday. Cussler brought ...

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Retrospective: My One-Of-One Pragotron × UDC Porsche 911 SC Coffee Timer Fratello
Jul 15, 2026

Retrospective: My One-Of-One Pragotron × UDC Porsche 911 SC Coffee Timer

It has been almost a year since my last article, so no pressure at all! “It has to be an epic comeback,” I told myself as one month flew into another. There were many watch candidates with unusual stories, but getting back to writing became harder and harder each week. As it usually goes, that […] Visit Retrospective: My One-Of-One Pragotron × UDC Porsche 911 SC Coffee Timer to read the full article.

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Insight: Bidirectional versus Unidirectional Winding SJX Watches
Jul 15, 2026

Insight: Bidirectional versus Unidirectional Winding

One of the quieter debates still ongoing in the horological world revolves around the difference in winding efficiency between unidirectional and bidirectional winding mechanisms. There are two schools of thought on the subject: some watchmakers remain convinced that a bidirectional winding mechanism is the clear winner in terms of efficiency, while a second group claims there are no real performance gains over simpler unidirectional winding mechanisms. Harvesting energy The basic idea behind automatic watches is to harvest energy from the wearer’s natural arm movements to wind the mainspring. The rotor is an unbalanced mass (its axis of rotation doesn’t coincide with its center of mass) that is subject to both gravity and the inertial forces exerted by the wearer. As the watch moves through different positions, the rotor spins in unpredictable bursts, generating substantial kinetic energy. A winding mechanism then turns the fast revolutions of the rotor into slower but more torque-heavy turns that wind the mainspring. Common transmission ratios cited by horological textbooks range between 1:110 and 1:180 — meaning that the barrel click wheel only makes one turn for every 110 to 180 turns of the rotor. In short, the winding mechanism transforms the erratic kinetic energy of the rotor into potential elastic energy, stored inside the mainspring’s coils. A short history Much like any sub-genre of horology, the history of automatic winding is lengthy and nuanced. This ...

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An Amateur Astronaut: How A Mark II Speedmaster Racing Reinforced My Love of Oddball Omegas Worn & Wound
Omega s Jul 14, 2026

An Amateur Astronaut: How A Mark II Speedmaster Racing Reinforced My Love of Oddball Omegas

For better or worse, but likely worse, I have always attempted to be an iconoclast. When the iPod debuted, I eschewed it for an oddball Korean MP3 player, which I loaded up with nu-metal at a time when all my fellow high school students were evolving into emo kids. I shamelessly drive a 38-year old Saab instead of the Porsche that I thought I could own by this age. And it’s a mentality that has extended into my watch enthusiasm as well: whenever the perennially popular Omega Speedmaster Professional sometimes seems like one of the only watches that exists among enthusiasts and lifestyle publications alike, I look at Omega’s adjacent, oddball chronographs that were in development around the same time as the moon landing.  Such as the Flightmaster: an Omega chronograph which also has an enviable space legacy, hewn from a single block of Swedish steel, same as the aforementioned Saab.    View this post on Instagram   A post shared by Blake Z. Rong (@bzrong) But it’s the Speedmaster’s sequel that commands my attention: once envisioned as a permanent successor to the Moonwatch, the Mark II Speedmaster is as bold as any seventies chronograph, worthy of the original’s lofty aspirations.  I came across this watch at Theo’s Haberdashery, a recently-opened vintage shop that highlights vintage Americana. Think woolen pennants for the Brooklyn Dodgers, Playboy matchbook covers, turquoise jewelry and custom-rolled cigars, complete with a 1950s Dodge flatbed truck parke...

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Your Chance To Own Apollo 11 Astronaut Buzz Aldrin’s Omega Speedmaster Fratello
Omega Speedmaster Jul 14, 2026

Your Chance To Own Apollo 11 Astronaut Buzz Aldrin’s Omega Speedmaster

In less than a week, we will commemorate the Apollo 11 lunar landing, which took place on July 20th, 1969. The first astronauts to set foot on the Moon were, of course, Neil Armstrong and Edwin “Buzz” Aldrin. The other Apollo 11 astronaut, Michael Collins, waited for them while orbiting the Moon in the Columbia […] Visit Your Chance To Own Apollo 11 Astronaut Buzz Aldrin’s Omega Speedmaster to read the full article.

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Fratello On Air: Watches, Brands, And Styles We Like But Would Probably Never Buy Fratello
Jul 14, 2026

Fratello On Air: Watches, Brands, And Styles We Like But Would Probably Never Buy

Welcome to another episode of Fratello On Air! This week, we discuss watch brands, models, and styles that we like but would probably never buy. To be clear, this episode isn’t about picking on anyone or anything. Instead, there are other reasons these pieces aren’t on our wrists and may never be. This podcast player […] Visit Fratello On Air: Watches, Brands, And Styles We Like But Would Probably Never Buy to read the full article.

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Hands On: Cartier Santos-Dumont Obsidian is Volcanic Class SJX Watches
Cartier Santos-Dumont Obsidian Jul 14, 2026

Hands On: Cartier Santos-Dumont Obsidian is Volcanic Class

Amongst Cartier’s crowd favourites launched this year is a new take on its elegant aviator’s watch, now upgraded with a mesh-link bracelet. The standout is the Santos-Dumont LM Obsidian that matches the yellow gold case and bracelet with a dial that is actually volcanic glass. This sticks to the classic Santos-Dumont template with a slim case containing an even slimmer Piaget movement, but the dial gives this a distinctly different feel from the conventional versions of the model. And unusually given the dial material, this is regular production. Initial thoughts Even though the original 1904 Santos was conceived as a professional’s “tool” watch of sorts, the modern-day Santos-Dumont is undoubtedly a dress watch, but one with a little flair. The form case and screws on the bezel set it apart from the average dress watch that is usually plain. This takes the design to another level with the bracelet and obsidian dial. The bracelet is a little showy since it is entirely yellow gold, but the links are fine enough that it still feels elegant. Similarly, the dial is high contrast but arguably passes as a dress watch. The case is compact and slim, so this still passes as a dress watch, one that is both ostentatious and elegant. If anything, I would have wished it was one size larger. This, along with the other variants of the Santos-Dumont on a bracelet, is in the “LM”, or “large model”, format. At under 32 mm in diameter, the case size is reminiscent of a vint...

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Auctions: Buzz Aldrin's Watches Are Coming To Auction Hodinkee
Jaeger-LeCoultre Shark Deep Sea Chronograph Jul 13, 2026

Auctions: Buzz Aldrin's Watches Are Coming To Auction

This story has been republished from our friends at Hodinkee Australia.   Amongst the lots in Sotheby's New York's latest Space Exploration auction, I found some interesting things. In fact, I found 24 of them. Watches - all owned by none other than retired Brigadier General of the U.S. Air Force, and second man on the moon, Buzz Aldrin. The astronaut, born Edwin Eugene Aldrin Jr., has listed a large portion of his watch collection, primarily Omegas, but there's a smattering of watches from other brands amongst the spacefaring lots. It's no surprise that Buzz's Apollo 11-flown Omega Speedmaster Professional isn't present; that watch is still lost, stolen on the way to the Smithsonian after its sojourn to the moon in 1969 (and it still technically belongs to the U.S. government). Buzz Aldrin in the Apollo 11 Lunar Module, wearing that aforementioned lost Omega Speedmaster ref. ST105.012. Image courtesy of NASA There’s a range of Omegas that are meaningful to Aldrin that he’s acquired through decades of collecting, including dive watches he relied on as an experienced scuba diver and a big box of souvenir watches. There’s no denying the man is a collector and a true watch enthusiast. Bidding is open online right now before live bidding sessions begin on July 15th in New York - here are some of the highlights. Jaeger-LeCoultre Shark Deep Sea Chronograph Image courtesy of Sotheby's This is the most interesting watch in the sale that isn’t an Omega: Aldrin’s JLC Shar...

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