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Results for Marine Chronometer & The Longitude Problem

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VIDEO: The Planet Ocean ‘Big Blue’ is “one of the most interesting” in Omega’s new collection, says CEO Time+Tide
Omega s new collection says Mar 23, 2017

VIDEO: The Planet Ocean ‘Big Blue’ is “one of the most interesting” in Omega’s new collection, says CEO

According to the CEO of Omega, Raynald Aeschlimann, the Planet Ocean ‘Big Blue’ Co-Axial Master Chronometer is “one of the most interesting” watches to be launched by Omega at Baselworld 2017. It represents, he says, a “continuation of Omega’s technological advances, a full ceramic blue Seamaster Planet Ocean, which is coming as a very nice … ContinuedThe post VIDEO: The Planet Ocean ‘Big Blue’ is “one of the most interesting” in Omega’s new collection, says CEO appeared first on Time+Tide Watches.

HANDS-ON: Confident refinement - the Ulysse Nardin Classico Manufacture Grand Feu Time+Tide
Ulysse Nardin Classico Manufacture Grand Feu Jan 23, 2017

HANDS-ON: Confident refinement - the Ulysse Nardin Classico Manufacture Grand Feu

Ulysse Nardin pulled out all the stops for its first SIHH showing. In a fair charactered by conservative product releases, the Le Locle-based manufacturer presented a strong line-up of novelties, with a strong nautical theme, highlights including the new regatta timer, the technically impressive Marine Grand Deck, as well as this watch – the Classico Manufacture Grand … ContinuedThe post HANDS-ON: Confident refinement – the Ulysse Nardin Classico Manufacture Grand Feu appeared first on Time+Tide Watches.

ADVENT CALENDAR 2016: December 16 - Omega Speedmaster Moonphase Chronograph Master Chronometer Time+Tide
Omega Speedmaster Moonphase Chronograph Master Dec 15, 2016

ADVENT CALENDAR 2016: December 16 - Omega Speedmaster Moonphase Chronograph Master Chronometer

In terms surprises, at Christmas or at any other time, Omega releasing a new Speedmaster does not rank (sorry Omegamaniacs). In the last few years we’ve seen Speedies offered in every colour and design under the sun. That said, their latest, the in-no-way-economically named Speedmaster Moonphase Chronograph Master Chronometer is, in fact, pretty eye-opening, mouth-watering and wallet-tempting. It’s hot, … ContinuedThe post ADVENT CALENDAR 2016: December 16 – Omega Speedmaster Moonphase Chronograph Master Chronometer appeared first on Time+Tide Watches.

INTRODUCING: The Ulysse Nardin Executive Tourbillon Time+Tide
Ulysse Nardin Executive Tourbillon Oct 28, 2016

INTRODUCING: The Ulysse Nardin Executive Tourbillon

With a penchant for the avant-garde, Ulysse Nardin is a tricky customer to pin down stylistically. They’re most famous for their marine chronometers, but they also produce simple, lean pieces that embody elegance. They also dabble in the upper echelons of haute-horology with their famous Freak as well as models with painstakingly elaborate hand-painted dials. … ContinuedThe post INTRODUCING: The Ulysse Nardin Executive Tourbillon appeared first on Time+Tide Watches.

Dispatches From A Faraway Land - The Piaget Altiplano Scrimshaw Engraving Watch Revolution
Piaget Altiplano Scrimshaw Engraving Watch Oct 12, 2015

Dispatches From A Faraway Land - The Piaget Altiplano Scrimshaw Engraving Watch

The art of scrimshaw is surrounded by layer upon layer of romance, tradition and controversy. Originating on whaling ships, where whalebone and marine ivory (mostly from walrus tusks) was plentiful, scrimshaw involves engraving on bone or ivory, with pigment applied to bring out the design. One of the great classics of American literature, Herman Melville’s […]

First Look - The Double-Signed Zenith G.F.J. Calibre 135 with Naoya Hida & Co. Monochrome
Zenith G.F.J Calibre 135 Jun 2, 2026

First Look - The Double-Signed Zenith G.F.J. Calibre 135 with Naoya Hida & Co.

When Zenith, celebrating its 160th Anniversary, revived the Calibre 135 in 2025 with the launch of the G.F.J. collection, the manufacture brought back one of the most important precision movements, a calibre that dominated observatory chronometry competitions throughout the 1950s and remains the most awarded movement of its kind. Taking the story in an unexpected […]

Hands-On: The Quietly Launched Jaeger-LeCoultre Reverso Tribute Monoface “Or Deco Cocktail” Hodinkee
Jaeger-LeCoultre Reverso Tribute Monoface “Or May 13, 2026

Hands-On: The Quietly Launched Jaeger-LeCoultre Reverso Tribute Monoface “Or Deco Cocktail”

Last year's launch of a new Reverso Tribute Monoface "Or Deco" in pink gold (with a gorgeous Milanese mesh bracelet) was probably the most outstanding release from Jaeger-LeCoultre in a while. Its time in the sun was somewhat brief, though, as it was a bit upstaged this year by the new Master Control Chronometre line (for which a Hands-On is forthcoming soon, I promise). Yet, at Watches and Wonders last month, the brand showed it could do more with the "Or Deco" platform, introducing three new Reverso Tribute Monoface Small Seconds "Or Deco Cocktail" watches, including two in a new material. Last year's release is still a stunner. You may have missed these new watches. That's in part because the brand is set to make a more complete announcement in a few weeks, with an immersive pop-up of its "Reverso Stories" series from May 21 to May 31 in the Miami Design District, ahead of the opening of a new boutique there this summer. The idea is to focus on rare pieces, including historic high-jewelry models, and to premiere some new Reverso pieces that play into that concept, including this trio. However, before the watches were shipped to South Beach, we got to see them in New York and get to spill the tea, as the kids say, before their Miami feature debut.  The standouts, at least in terms of novelty, are the two new white-gold versions. The framework remains the same, a 45.6 x 27.4 x 7.56mm case, now in white gold, housing a manually wound Jaeger-LeCoultre caliber 822 movement....

Our Favorite Complicated Watches From Watches & Wonders 2026 Teddy Baldassarre
Jaeger-LeCoultre Master Control Chronometre Perpetual Apr 23, 2026

Our Favorite Complicated Watches From Watches & Wonders 2026

Our editors might still be reorienting themselves to their local timezone after being on Geneva time the past week, but the challenges of Watches & Wonders Editors' Picks must continue while the show is fresh in their minds. For this edition, we tasked our editors with selecting the watch complication that has stuck with them most from this year's lineup. From the sophisticated to the decidedly playful, down below, you'll find the watch complications that have risen above the pack, as decided by our editorial team. Explore our full editorial coverage of this year's show here.  D.C. Hannay: Jaeger-LeCoultre Master Control Chronometre Perpetual Calendar Another luxury watch pick, another slam dunk for Jaeger-LeCoultre. Whichever way the wind is blowing in the Vallée de Joux, it’s been doing wonders for JLC of late, exemplified by the new Master Control Chronometre series. The brand has finally gone and made a modern, real-deal integrated luxury model, and enthusiasts are pricking up their ears. Along with the sleek Chronometre Date and the symmetrically gifted Chronometre Date Power Reserve, they’ve come up with a truly breathtaking riff on one of the most complicated complications, the Chronometre Perpetual Calendar. Absent of the hype surrounding the Royal Oak or the Nautilus, we’re presented with a beautifully balanced dial and cohesive design, packaged in a startlingly svelte 39mm case just 9.2mm thin. Also available in a glowing pink gold with a complementary br...

Watches & Wonders: Jaeger-LeCoultre Reintroduces the Master Control Collection and their “HPG” Designation Worn & Wound
Jaeger-LeCoultre Reintroduces Apr 20, 2026

Watches & Wonders: Jaeger-LeCoultre Reintroduces the Master Control Collection and their “HPG” Designation

In addition to a barrage of ultra high end novelties, Jaeger-LeCoultre this week has introduced the new Master Control Chronometre collection, with a focus on chronometric elegance with watches featuring a sleek new integrated bracelet sports watch design. Jaeger-LeCoultre has a long history, of course, of not just pure movement making and horology, but in providing certainty behind their movements through the Master Control collection, which was a testing certification conducted in-house over 1,000 hours. The Master Control Chronometre collection continues that tradition while also filling a gap in the brand’s catalog: a (relatively) accessible everyday watch that is not a Reverso.  Before getting into the watches themselves, we’ll start with an overview of what “Master Control” really means in 2026. This collection reintroduces the brand’s “High Precision Guarantee” designation, which is an update of an old standard first used on JLC’s Calibre 916, their renowned 4 Hz caliber introduced in 1970. The new HPG designation evaluates performance across four metrics: altitude (certifying that the watch can withstand pressure up to 1004 meters above sea level, the altitude of the JLC manufacture), multi-directional shocks, testing in multiple positions, and variances across temperature. Jaeger-LeCoultre has developed new machinery to test for these conditions, which the brand says can simulate real world use over a long duration in just three days of actual tes...

Live from WWG26: the new release from Ferdinand Berthoud Deployant
Ferdinand Berthoud Apr 16, 2026

Live from WWG26: the new release from Ferdinand Berthoud

DEPLOYANT - The watch magazine for collectors, by collectors Ferdinand Berthoud flipped their movement released 10 years ago in the FB 1. The new watch is Chapter 1 Chronomètre FB 2TV is like an inverted version of the FB 1. But of course, as this is a Ferdinand Berthoud, the entire movement is reworked to flip over, and the entire movement is now visible [...] The post Live from WWG26: the new release from Ferdinand Berthoud appeared first on DEPLOYANT.

Introducing: The New Panerai Luminor Collection Fratello
Panerai Luminor Collection Last year Apr 13, 2026

Introducing: The New Panerai Luminor Collection

Last year, Panerai refreshed its Luminor Marina collection and introduced slimmer cases with increased water resistance ratings. This year, the brand is playing directly to my wheelhouse by updating its Luminor collection. For reference, these watches include manual-winding movements, which I love to see and use. We were fortunate to have these pieces in our […] Visit Introducing: The New Panerai Luminor Collection to read the full article.

Introducing - The Panerai Radiomir Viaggio Nel Tempo Experience Set Monochrome
Panerai Radiomir Viaggio Nel Tempo Feb 24, 2026

Introducing - The Panerai Radiomir Viaggio Nel Tempo Experience Set

When presenting a watch, we often talk about the wearing experience. Yet Panerai chose to expand the experience angle, and over the past few years, it has been transforming ownership into participation through its special program of curated journeys that put collectors inside the brand’s storytelling. The Submersible Chrono Marina Militare PAM01699, Radiomir 8 Giorni […]

In-Depth - The Superb Breguet Classique 7225, and the Refinement of the Magnetic Pivot Monochrome
Breguet Classique 7225 Nov 26, 2025

In-Depth - The Superb Breguet Classique 7225, and the Refinement of the Magnetic Pivot

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 […]

Introducing: The Three-Watch-Strong Lebois & Co Heritage Small Seconds Collection Fratello
Oct 30, 2025

Introducing: The Three-Watch-Strong Lebois & Co Heritage Small Seconds Collection

After a series of chronographs, the Dutch-based brand Lebois & Co returns with a trio of three-handers. Please welcome the Heritage Small Seconds collection. The silver Script, blue Baton, and black Numeral Founder’s Launch editions are COSC-certified chronometers with perks for early adopters. A “Chronomètre Lebois & Co” sweater inspired by Parisian streetwear is waiting […] Visit Introducing: The Three-Watch-Strong Lebois & Co Heritage Small Seconds Collection to read the full article.

Behind the DIN 8330 Standard for Pilot’s Watches Worn & Wound
Sinn lead Oct 3, 2025

Behind the DIN 8330 Standard for Pilot’s Watches

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...

First Look - The New H. Moser & Cie. Streamliner Tourbillon Pierre Gasly (Incl. Video) Monochrome
H. Moser & Cie Streamliner Tourbillon Oct 1, 2025

First Look - The New H. Moser & Cie. Streamliner Tourbillon Pierre Gasly (Incl. Video)

On the eve of the 2025 Singapore Grand Prix at the Marina Bay Street Circuit, H. Moser & Cie. pulls the covers off its latest Formula 1-themed watch. But it’s perhaps not what you expect, as it doesn’t come in some highly exotic F1-tech derived material, nor with a revolutionary design. Instead, the renowned independent […]

Hands On: Panerai Revives the Luminor 5218 SJX Watches
F.P. Journe Resonance Sep 12, 2025

Hands On: Panerai Revives the Luminor 5218

There were few brands as hot as Panerai in the 2000s, and now the brand is revisiting its glory days with the Luminor Marina Militare 44 mm PAM05218. Visually, the PAM05218 a faithful remake of the Luminor ref. 5218-202/A of 1993, a “Pre-Vendome” model that became one of the most desirable watches of the 2000s. The watch retains the same design and many of the details, including the “non matching” hands, but has been upgraded with modern amenities, including a diamond-like carbon (DLC) coating for the case and a three-day movement. Initial thoughts Enthusiasts who were in the hobby in the 2000s will remember the frenzy around Panerai, which was probably the fastest growing brand during the period. Many models sold over retail, sometimes for multiples. The “vintage” models like the Luminor ref. 5218-202/A were even more valuable; it cost a healthy, mid-five figures at the time. In fact, the ref. 5218-202/A cost more than an F.P. Journe Resonance at the time. In retrospect, most of it was comical yet also seems familiar given the happenings in recent years. Times have changed, but the PAM05218 is essentially unchanged from the original – which is great for those who appreciate the functional, stark design of Panerai’s core models. I like those designs, and I like the PAM05218. If there’s one Panerai in the current catalogue I would buy, it is this one. At a distance, the PAM05218 is indistinguishable from the original, but up close it is clearly a new watc...

Hands-On: the Apiar Gen1.0 Worn & Wound
Aug 15, 2025

Hands-On: the Apiar Gen1.0

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...