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Results for Marine Chronometer & The Longitude Problem

40,676 articles · 5,750 videos found · page 9 of 1548

Hands-On With The New Lederer CIC 39 Longitude Fratello
Sep 19, 2025

Hands-On With The New Lederer CIC 39 Longitude

Just one year ago, I was introduced to Lederer watches. The brand, founded by Bernhard Lederer, creates incredible movements with complex mechanisms. Constant-force escapements and twin gear trains are some of the impressive details. Last year, I fell in love with the Triple Certified Observatory Chronometer, a set of 44mm watches that had traveled to […] Visit Hands-On With The New Lederer CIC 39 Longitude to read the full article.

New releases from Grand Seiko, Garrick, Tissot, Bulova and more Time+Tide
Glashütte Original Senator Chronometer … ContinuedThe Aug 19, 2023

New releases from Grand Seiko, Garrick, Tissot, Bulova and more

Novelty drops are picking up again, and thanks to the upcoming Geneva Watch Days fair at the end of the month, there will be plenty more to explore. For now, here are ten new watches from last week, including architecture-inspired timepieces, colourful katana-inspired dials, and watches that have more classic sensibilities. Glashütte Original Senator Chronometer … ContinuedThe post New releases from Grand Seiko, Garrick, Tissot, Bulova and more appeared first on Time+Tide Watches.

Ulysse Nardin Debuts the Marine Torpilleur 175 Years Collection SJX Watches
Ulysse Nardin Debuts Sep 1, 2021

Ulysse Nardin Debuts the Marine Torpilleur 175 Years Collection

Historically a major producer of marine chronometers, Ulysse Nardin has repurposed the concept in the modern day for its bestselling line of wristwatches that retain the face of a marine chronometer while having in-house movements and eminently reasonable prices. For its 175th anniversary, Ulysse Nardin has unveiled the Marine Torpilleur 175 Years collection, a suite of limited-edition watches starting with an affordable base model and ending with a range-topping tourbillon featuring a fired-enamel dial. Initial thoughts Originally introduced as an entry-level Marine model – it was named after a torpedo boat – the Marine Torpilleur has been successful enough that it’s now an entire anniversary line up. The expansion of the line is a good thing, because the Torpilleur is classically handsome and generally good value. All the Torpilleur models are largish at 42 mm in diameter, but most are slim, with heights of about 11 mm, though the chronograph is understandably wider and thicker. As a result, they appear relatively thin on the wrist, especially for a sporty watch. The tourbillon with a black enamel dial, and next to it a vintage Ulysse Nardin chronometer pocket watch with tourbillon regulator And the watches are all equipped with high-spec in-house movements, which is a big factor in their value propositions. Even the base model, which costs US$8,200 in its simplest version, is equipped with the UN-118, a movement that has a silicon hairspring and escapement, along...

First Look – The Serica 6190 Chronomètre M.S.L, the Updated Field Watch Monochrome
Serica 6190 Chronomètre M.S.L May 23, 2024

First Look – The Serica 6190 Chronomètre M.S.L, the Updated Field Watch

Despite being a relatively young brand (founded in 2019), Serica already carries a consistent collection of retro-inspired sports watches – field, dive and GMT. A project of Je?ro?me Burgert and Gabriel Vachette (both behind French magazine Les Rhabilleurs), all watches are designed to be used and abused with sturdiness, precision and style in mind. Today, […]

HANDS-ON: Ulysse Nardin’s surprise sailing watch – the Marine Regatta Time+Tide
Ulysse Nardin s surprise sailing watch May 17, 2017

HANDS-ON: Ulysse Nardin’s surprise sailing watch – the Marine Regatta

Ulysse Nardin made their name way back in 1846 making marine chronometres – highly accurate ship’s clocks that were an essential navigational tool in the times before radio and GPS. These days the Le Locle-based brand still makes chronometre-style timepeices, but as a celebration of heritage rather than a practical tool. This isn’t to say that … ContinuedThe post HANDS-ON: Ulysse Nardin’s surprise sailing watch – the Marine Regatta appeared first on Time+Tide Watches.

Tudor Introduces A Slimmer Black Bay 58 With Master Chronometer Certification And Another Bracelet For The Black Bay 58 GMT Fratello
Tudor Introduces Apr 14, 2026

Tudor Introduces A Slimmer Black Bay 58 With Master Chronometer Certification And Another Bracelet For The Black Bay 58 GMT

Tudor expands its lineup of mid-size dive watches with an updated Black Bay 58 and a new bracelet option for the Black Bay 58 GMT. Both watches keep the familiar 39mm case and continue to draw on late-1950s Tudor dive-watch aesthetics. The three-hand model adds technical upgrades, revised case proportions, and Master Chronometer certification. These […] Visit Tudor Introduces A Slimmer Black Bay 58 With Master Chronometer Certification And Another Bracelet For The Black Bay 58 GMT to read the full article.

Hands-On With The Surprisingly Creative Nordic Marine Instruments Lunør Fratello
Mar 25, 2026

Hands-On With The Surprisingly Creative Nordic Marine Instruments Lunør

One of the most intriguing natural phenomena is the aurora borealis, also known as the northern lights. Witnessing this display of colors in the sky is on the bucket lists of many travel lovers. I haven’t seen the spectacular green, red, and purple night skies, but I know from friends that they are mesmerizing. The […] Visit Hands-On With The Surprisingly Creative Nordic Marine Instruments Lunør to read the full article.

Serica Introduces the 5330 Dive Chronometer Worn & Wound
Serica Introduces Mar 13, 2026

Serica Introduces the 5330 Dive Chronometer

One of watchmaking’s simplest but most iconic complications, the date window, is the source of much admiration, and yes, a little bit of ire. One of the biggest points of contention on any inclusion of a date window is the balancing of it on the dial; after all, how do you place it to not ruin the symmetry (or asymmetry) of a carefully-crafted design? With their new Ref. 5330 Dive Chronometer, Serica has chosen a sleek solution for their first date window inclusion: nestle it at 3 o’clock, taking the place of the marker, and give it a crisp red accent to stand out. Sure, it’s not necessarily revolutionary, but it adds a sophisticated touch to an already clean dial. The core tenets of the 5330’s design carry over from other models in Serica’s Dive Chronometer lineup, with circular hour markers and a double graduation bezel being the most recognizable, and a 39mm 316L stainless steel case housing an identical SoProd M100 Swiss automatic movement. The matte black dial and anthracite-grey outer bezel ring contrast with the steel of the inner bezel and case, and the cream Super-LumiNova on the hands and hour markers. Similarly, the cream date window and red numeral add both a sense of cohesion and a highly legible flash of color to give the dial an extra layer of aesthetic complication. It’s certainly a welcome addition visually, and keeps the design from feeling too austere.  At 12.2mm in thickness and 46.5mm lug-to-lug, the 5330 is sized well for most wrists, and...

Serica Introduces The 5330 Dive Chronometer - The Brand’s First Watch To Feature A Date Window Fratello
Serica Introduces Mar 12, 2026

Serica Introduces The 5330 Dive Chronometer - The Brand’s First Watch To Feature A Date Window

The guys at Serica take their vintage-inspired designs very seriously. The brand’s watches are all about the perfect proportions, high legibility, and great wearability. Up until now, a date window wasn’t part of that equation. However, as representatives of many brands tell us, some people won’t buy a watch unless it has a date window. […] Visit Serica Introduces The 5330 Dive Chronometer - The Brand’s First Watch To Feature A Date Window to read the full article.

Chronometer Watches Matter - Why The World Of Luxury Needs Accuracy Fratello
Feb 25, 2026

Chronometer Watches Matter - Why The World Of Luxury Needs Accuracy

Having the exact time on hand is nothing special nowadays. Almost always, you’re connected to satellite time (GPS), which is based on atomic clocks in satellites that measure time to 100 billionths of a second. Optimizing accuracy through mechanical parts is a whole other matter and an age-old quest. A chronometer - the word derives […] Visit Chronometer Watches Matter - Why The World Of Luxury Needs Accuracy to read the full article.

Hands-On: The Brellum Duobox 39 Ice Blue Mother Of Pearl Chronometer Fratello
Feb 16, 2026

Hands-On: The Brellum Duobox 39 Ice Blue Mother Of Pearl Chronometer

We continue to be impressed by the watches from Brellum. The small brand produces a maximum of 299 pieces per year, which comprises several limited-edition releases. Today, we go hands-on with the latest model, the Duobox 39 Ice Blue Mother of Pearl Chronometer. Yes, that’s a lot of words, but the important details worth noting […] Visit Hands-On: The Brellum Duobox 39 Ice Blue Mother Of Pearl Chronometer to read the full article.

Industry News – The COSC Releases Excellence Chronometer, its New, Stricter Standard in Chronometry Monochrome
Feb 12, 2026

Industry News – The COSC Releases Excellence Chronometer, its New, Stricter Standard in Chronometry

What is a chronometer…? In short, it is a watch that has been officially tested for its precision. And to guarantee the precision of watches, several tools exist, such as the ISO 3159 standard (which celebrates its 50th anniversary this year) and official organisations, such as the Observatoire de Besançon in France, the Glashütte Observatory […]

Chronograph vs. Chronometer: What is the Difference? Teddy Baldassarre
Jan 5, 2026

Chronograph vs. Chronometer: What is the Difference?

One of the first hurdles to clear for newcomers to watch appreciation is the clarification of two very common horological categories: chronograph vs. chronometer. Quite simply, a chronometer (from the Greek chronos, meaning time, and meter, meaning measure) is any watch or clock that keeps reliably accurate time, usually as determined by an outside independent testing agency, whereas a chronograph (from chronos and graph, i.e., to “write time”) is any watch or clock with the ability to track and record intervals of time, aka a stopwatch. This is, again, the simplest way to look at it. But there’s a bit more to both chronometers and chronographs that a knowledge-hungry watch enthusiast might want to digest - including the fact that the terms are not interchangeable but also not mutually exclusive.  [toc-section heading="Chronometers Defined"]  Our original, classical definition of a chronometer can be traced back to the golden age of seafaring exploration in the 18th Century, when ships required the use of a highly accurate onboard clock that enabled their navigators to determine longitude in order to avoid the perils of running aground or veering hopelessly off course. The man credited with developing the first of these “marine chronometers” was legendary British watchmaker John Harrison; his invention facilitated the celestial navigation used at the time by navigators at sea to determine their ship’s position in coordination with a sextant. Marine chronome...