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Results for Marine Chronometer & The Longitude Problem

40,706 articles · 5,514 videos found · page 22 of 1541

Kurono Tokyo Closes Out the Calendrier I Series with the Maroon Dialed “Azuki” Anniversary Edition Worn & Wound
Kurono Tokyo Closes Out May 25, 2023

Kurono Tokyo Closes Out the Calendrier I Series with the Maroon Dialed “Azuki” Anniversary Edition

The latest from Kurono Tokyo is a new version of their Calendrier Type I, a reference that was a finalist in the 2022 GPHG awards. A triple calendar is an old school complication, so it makes sense for a brand like Kurono to experiment on this platform, with their design language so deeply rooted in Art Deco principles and mid 20th century ideas around size and style. The new Calendrier is a Kurono anniversary model, thus it will be sold as a “time limited” edition, meaning prospective owners will have specific windows during which they can make a purchase, and Kurono will fill every order placed in these windows. Kurono has also announced that this will be the final version of the Calendrier Type I, so if this is a reference you’ve been hunting, we’re approaching your last chance to snag one directly from the brand.  Kurono has dubbed this model the Anniversary Calendrier “Azuki,” a name derived from the maroon color of the dial. Azuki means “red bean” in Japanese, and in Japan is a color commonly associated with cars. Maroon was once a common standard vehicle color, so this watch is subtly auto inspired and a throwback in more ways than one.  According to the brand, achieving this particular tone of maroon was a significant challenge. To get the color right, Kurono used phosphor-bronze rather than the typical brass for the dial material, which allows them to get the proper shade of red during the finishing process. Kurono notes that phosphor-bronze is m...

Panerai Introduces the Luminor Marina Carbotech PAM 1661 SJX Watches
Panerai Introduces Feb 3, 2020

Panerai Introduces the Luminor Marina Carbotech PAM 1661

Three years ago, Panerai introduced the LAB-ID Luminor 1950 Carbotech 3 Days PAM 700, an experimental watch boasting carbon-based innovations inside and out, including ceramic bridges and plates that do away with jewelled bearings as well as a dial coated in carbon nanotubes giving it an absolute black finish. But the LAB-ID was truly experimental, and word has it that only a handful were sold and the planned 50-piece run was never completed. But no doubt due to the popularity of the LAB-ID’s design – and unpopularity of the €50,000 price tag – Panerai has just announced the Luminor Marina Carbotech 44 mm (PAM01661). It’s essentially a smaller, simpler LAB-ID, featuring a case in the same material, as well as blue lume on the dial and hands, but with a straightforward automatic movement without any of the bells and whistles found in the LAB-ID. The Luminor Marina Carbotech 44 mm Depth rated to 300 m, the case is made of Carbotech, a carbon fibre-reinforced polymer produced by compressing thin sheets of carbon fibres at high pressure with a high-end polymer (PEEK), explaining the wave-like appearance of the material. The result is a material that is light and strong, explaining why the large, 44 mm case weighs just 96 grammes, less than half the same case in steel. The LAB-ID of 2017 The watch has a standard Panerai dial, but in the colours of the LAB-ID. Like most Panerai dials, it has a “sandwich” construction, where the hour markers are cut-outs that r...

In-Depth – The Clock that Changed the World and the Fantastic Recreation of John Harrison’s H1 Monochrome
Dec 3, 2025

In-Depth – The Clock that Changed the World and the Fantastic Recreation of John Harrison’s H1

The replica of John Harrison’s H1 clock that the Stratford-upon-Avon-based Pragnell’s commissioned from Bob Bray of Sinclair Harding is a gloriously over-the-top tribute to an invention that was as significant an advance in the 18th century as the emergence of AI is today. Indeed, John Harrison’s H1 clock cracked the Longitude Problem, making navigation at […]

In-Depth: Ferdinand Berthoud Tests the Limits of ‘Hand Made’ SJX Watches
Chopard Sep 4, 2025

In-Depth: Ferdinand Berthoud Tests the Limits of ‘Hand Made’

Few brands approach marine chronometer-style wristwatches with the intensity of Ferdinand Berthoud (FB). Fewer still have the capacity to produce a watch that is truly hand made. The brand has leaned into these strengths to good effect with the Naissance d’une Montre 3, which is perhaps the most labour-intensive wristwatch ever created. Marking the third official chapter of the Time Æon Foundation’s Naissance d’une Montre project, the Montre 3 is the byproduct of a six year quest to thoroughly document the steps required to make a chain and fusee wristwatch using only hand-operated tools. While the production of the Montre 3 involves more than 80 individuals from both FB and its parent Chopard, the labour involved equates to roughly a full year’s work for five people to produce each of the 11 pieces that will be made in the coming years. Initial thoughts It’s easy to feel jaded about the smoke and mirrors of luxury watch marketing, with terms like ‘hand made’ and ‘in-house’ used all too freely, making it difficult to separate the signal from the noise. Make no mistake, the Montre 3 is, in some ways, what all traditional haute horlogerie watches aspire to be, and takes the concept of hand craftsmanship to its absolute limit. The Montre 3 is neither inventive nor complicated, but the intrinsic quality of its construction is immediately obvious and breathtaking in its own right. To some extent, the simplicity of the 44.3 mm white gold case demonstrates the ...

The 15 Best British Watch Brands (2026) Teddy Baldassarre
Aug 18, 2025

The 15 Best British Watch Brands (2026)

While Switzerland is regarded today as the world leader of watchmaking, Great Britain can lay claim to a wealth of horological milestones throughout its history as well. From Thomas Mudge’s development of the lever escapement in 1755 to John Harrison’s invention of the marine chronometer in 1759 to the innovations of clockmaker Thomas Tompion and his protegé George Graham in the areas of science and astronomy, England was an undisputed leader in timekeeping throughout the 18th and 19th centuries. The 20th century brought the decline of the British Empire and, with it, British watchmaking, as nations like Switzerland, Germany, and (for a while) the United States stepped in with modern mass-production techniques while the Brits held fast to traditional, artisanal methods. The United Kingdom essentially ceased being a major producer of timepieces by the end of World War II, but as the 21st Century dawned, a handful of entrepreneurial Britons have made great strides in bringing high-end watchmaking back to their native land, establishing new brands - and in some cases, resurrecting old ones - to make watches that appeal to today’s discerning enthusiasts in the U.K. and across the world. Whether the focus is military-style tool watches, avant-garde complications at approachable prices, or ultra-high-end pieces for well-heeled collectors, each brand boasts an identity that is proudly British and at the same time distinct from its peers. Here are 15 British watch bran...

Introducing – The Arnold & Son Globetrotter 42 Steel in Strand Blue & Greenwich Green Monochrome
Arnold & Son Jul 16, 2025

Introducing – The Arnold & Son Globetrotter 42 Steel in Strand Blue & Greenwich Green

John Arnold’s marine chronometers were vital tools for calculating longitude at sea, trusted by explorers like Captain James Cook and used by the East India Company’s fleets. This pioneering spirit lives on in the modern Arnold & Son’s Globetrotter line, showcasing the brand’s distinctive approach to functional, finely crafted world timers. Earlier references are available […]

Introducing – The new IWC Portugieser Tourbillon Retrograde Chronograph in Armor Gold Monochrome
IWC Portugieser Tourbillon Retrograde Chronograph Jul 7, 2025

Introducing – The new IWC Portugieser Tourbillon Retrograde Chronograph in Armor Gold

The Portugieser line is one of IWC’s iconic collections, tracing its origins back to the late 1930s when Portuguese businessmen sought precision marine chronometer-grade wristwatches with oversized cases and clear dials. Since then, the Portugieser family has evolved into a flagship line balancing classic elegance with technical prowess, blending clean, legible design with complications that […]

First Look – The Incredibly Light Ulysse Nardin Diver (Air) Monochrome
Ulysse Nardin Diver Air Switzerland might Apr 2, 2025

First Look – The Incredibly Light Ulysse Nardin Diver (Air)

Switzerland might be landlocked, but Ulysse Nardin, a young watchmaker from Le Locle, consolidated his reputation by producing precision marine chronometers. By the 1870s, the manufacture supplied more than 50 navies and merchant marine companies with chronometers to calculate longitude at sea. These days, Ulysse Nardin plays on its marine heritage with its classical Marine […]

It’s a Close Encounter of the Horological Kind with the New UFO Clocks from Ulysse Nardin Worn & Wound
Ulysse Nardin Eagle-eyed watch Jul 25, 2023

It’s a Close Encounter of the Horological Kind with the New UFO Clocks from Ulysse Nardin

Eagle-eyed watch and horology enthusiasts are experiencing a close encounter of the third kind as Ulysse Nardin has dropped three new versions of its avant-garde UFO (Unidentified Floating Object) marine chronometer table clock. Based on the original UFO from 2021, the trio of new colors celebrates Ulysse Nardin’s special relationship with three famed retailers: Swiss-based Bucherer (Ice Blue), Japanese retailer Yoshida (Green), and The Hour Glass (Champagne) in Southeast Asia. The clocks are limited to 30 in each color and are available exclusively through these retailers. Ulysse Nardin commemorated its 175th anniversary back in the spring of 2021 by introducing the first series of UFOs in a batch of 75 examples in dark blue. All sold out quickly. In the fall of that year, at Only Watch, a unique one-off in orange hammered for an eye-watering CHF 380,000. Clearly, there was interest in this unapologetically futuristic take on the marine chronometer – once a crucial tool in navigation at sea and the pinnacle of precision timekeeping. Ulysse Nardin claims this is the fruit of two years of research and development in partnership with L’Épée, whom you may recognize as past collaborators with MB&F;. A closer look at the UFO reveals a product that builds on UN’s history as masters of the marine chronometer while pushing the boundaries of design and engineering. Aesthetically, the UFO is like a JLC Atmos clock that decided to let loose: the half-sphere base houses a tun...

HANDS-ON: The new IWC Portugeiser Chronograph IW371620 is a near-perfect warm weather watch Time+Tide
IWC Portugeiser Chronograph IW371620 Oct 16, 2022

HANDS-ON: The new IWC Portugeiser Chronograph IW371620 is a near-perfect warm weather watch

The IWC Portugieser collection is rooted in both class and utility. It was an elegant solution, originally presented in 1939, due to demand for a marine-deck chronometer experience that could be translated into a wristwatch. It was oversized for its time – a rather sporty characteristic – but still every bit as elegant as its … ContinuedThe post HANDS-ON: The new IWC Portugeiser Chronograph IW371620 is a near-perfect warm weather watch appeared first on Time+Tide Watches.

Ulysse Nardin Introduces the UFO Table Clock SJX Watches
Ulysse Nardin Introduces Apr 8, 2021

Ulysse Nardin Introduces the UFO Table Clock

Having made a name for itself in the early 20th century for its marine chronometers, Ulysse Nardin revisits its roots with the UFO, an intriguing table clock conceived to mark the brand’s 175th anniversary. Described as a “swinging mechanical depiction of the movement of the waves”, the UFO is as an avant-garde reinterpretation of the marine chronometer. It’s essentially a round-bottomed doll that will wobble and sway but never topple over, except it contains an impressive mechanical movement with a 365-day power reserve. Traditionally known for largely classical designs with the occasional twist, such as the Marine Torpilleur, Ulysse Nardin has been gravitating towards more boldly modern designs in recent years, exemplified by the Blast Tourbillon and the Freak X Silicium Marquetry. That experimental approach is now applied to the table clock in a collaboration with clock specialist L’Epée 1839, the supplier of choice for many watchmakers looking to get into exotic clocks. Initial thoughts Inspired by the oceans, the UFO sways when nudged, but remains upright thanks to a weighted base, creating an engaging display of timekeeping. And the UFO is practical as well, featuring three clock faces that can be set to different time zones, or to mirror each other. Granted, the UFO will have a very niche appeal, considering it’s a table clock with a complex design matched by a high price tag. Costing a whopping US$41,100, the UFO is almost double the price of L’Epé...

HANDS-ON: The elegance and nuance of the IWC Portugieser 2020 Collection in the metal Time+Tide
IWC Portugieser 2020 Collection Nov 23, 2020

HANDS-ON: The elegance and nuance of the IWC Portugieser 2020 Collection in the metal

Earlier this year, in April, the IWC Portugieser 2020 Collection was announced at Watches & Wonders. The Portugieser was created in 1939 due to a demand for a marine-deck chronometer experience that could be translated into a wristwatch. Legibility and accuracy are the two pillars that hold up the Portugieser line, and IWC has changed … ContinuedThe post HANDS-ON: The elegance and nuance of the IWC Portugieser 2020 Collection in the metal appeared first on Time+Tide Watches.

INTRODUCING: The IWC Portugieser Automatic 40, a new contender for the ultimate ‘one watch’ Time+Tide
IWC Portugieser Automatic 40 May 1, 2020

INTRODUCING: The IWC Portugieser Automatic 40, a new contender for the ultimate ‘one watch’

The story of the Portugieser begins with two businessmen from, you guessed it, Portugal. They went to IWC asking for a watch as accurate as a marine chronometer but could be worn on the wrist, something that hadn’t been done before by the brand. The only way the Schaffhausen-based manufacturer could meet the brief was … ContinuedThe post INTRODUCING: The IWC Portugieser Automatic 40, a new contender for the ultimate ‘one watch’ appeared first on Time+Tide Watches.