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Results for Marine Chronometer & The Longitude Problem

43,085 articles · 253 videos found · page 23 of 1445

First Look - The New Platinum Editions of the Ferdinand Berthoud Chronomètre FB3 SPC Monochrome
Chopard s co-president Karl-Friedrich Scheufele Mar 28, 2025

First Look - The New Platinum Editions of the Ferdinand Berthoud Chronomètre FB3 SPC

In 2015, one of the great names in 18th-century watchmaking was resurrected by Chopard’s co-president Karl-Friedrich Scheufele. Ferdinand Berthoud (1727-1807), the Swiss horologist who emigrated to Paris in 1745 and gained fame for his marine chronometers, was granted a second lease of life. Determined to perpetuate the legacy and chronometric credentials of F. Berthoud’s past […]

Why I Bought It: Rexhep Rexhepi/Akrivia Chronomètre Contemporain Quill & Pad
Rexhep Rexhepi /Akrivia Chronomètre Contemporain There Sep 29, 2024

Why I Bought It: Rexhep Rexhepi/Akrivia Chronomètre Contemporain

There are nice-looking watches, there are crisp-looking watches, and then there are watches that emanate an otherworldly glow. For GaryG the Rexhep Rexhepi/Akrivia Chronomètre Contemporain falls into the third category, so much so that it became a running joke for a friend to pantomime a “smelling salts” motion as a signal for Gary to pull up his sleeve and jolt him back to attention. Here he explains why he bought this new classic watch.

Up Close: F.P. Journe Chronomètre Furtif Bleu “Only Watch 2024” SJX Watches
F.P. Journe Chronomètre Furtif Bleu “Only May 1, 2024

Up Close: F.P. Journe Chronomètre Furtif Bleu “Only Watch 2024”

Possibly the successor to the Chronomètre Bleu, the Chronomètre Furtif Bleu is a unique creation made for Only Watch 2024 taking place on May 10, but also the template for a next generation of lineSport watches. The Furtif Bleu retains the familiar silhouette of the lineSport, but is executed entirely in tantalum – notably the bracelet is tantalum – with a fired enamel dial. Additionally, it is equipped with a new calibre that displays the power reserve and moon phase on the back. Initial thoughts Despite its name and low-key colours, the Furtif Bleu is a very striking watch, largely because of the contrast between the dark grey tantalum and the blue dial with an orange seconds hand. In the hand, it is heavy, as expected for the metal, and also silky in feel due to the finely blasted surfaces of the case and bracelet. Close your eyes and it feels like the current lineSport in platinum, though the blasted finish is finer than that on the existing gold and platinum models. And on the wrist, it is unexpectedly elegant for a sports watch because of its height, which is just 9.5 mm. That’s slightly thicker than the Chronomètre Bleu and noticeably thinner than the lineSport Automatique Reserve. One of the most notable aspects of the watch is the bracelet, which is entirely tantalum. The nature of the alloy makes it particularly difficult to work, explaining the cost and rarity of tantalum watch cases. Tantalum bracelets are even less common. The only other brand I can t...

Jaeger-LeCoultre’s Universe: Marina Bay Sands Boutique Renewed With Catherine Rénier Revolution
Jaeger-LeCoultre s Universe Marina Bay Mar 20, 2024

Jaeger-LeCoultre’s Universe: Marina Bay Sands Boutique Renewed With Catherine Rénier

Jaeger-LeCoultre’s newly refurbished boutique at Marina Bay Sands has opened it’s doors, marking the beginning of a series of reopened stores worldwide as the esteemed 191-year-old brand undergoes a visual rejuvenation. Wei is joined by Catherine Rénier, CEO of Jaeger-LeCoultre, as they delve into the brand’s innovative new interior concept centered around the theme of […]

Only Watch: Akrivia Rexhep Rexhepi Chronomètre Contemporain II SJX Watches
Rexhep Rexhepi Chronomètre Contemporain II What Jul 1, 2021

Only Watch: Akrivia Rexhep Rexhepi Chronomètre Contemporain II

What can one infer from a drawing of a new timepiece? As it turns out, a fair bit. The below sketch is the only bit of information revealed by Akrivia for its contribution to Only Watch 2021, the Rexhep Rexhepi Chronomètre Contemporain II (RRCCII). Despite the paucity of information, much can still be deduced from the single image. Initial impressions The most apparent fact that can be gleaned the sketch is a deadbeat seconds – a seconds hand that jumps discretely once a second. We can infer this from the star and flirt mechanism. The star is mounted on the escape wheel, which is located at six o’clock and completes a revolution once every five seconds. The star blocks the rotation of a flirt, a long lever that presses against the face of the star’s teeth. After each second, the star rotates far enough that the tooth provides enough clearance to release the flirt, allowing the star to rotate until the flirt contacts the next tooth of the star. This sudden release of the flirt is what controls the burst of rotational energy that drives the deadbeat second geartrain. Further inferences can be made from our May 2020 chat with Rexhep, where he hinted the RRCCII will have twin barrels powering separate going trains. In retrospect, that now makes sense in the context of the deadbeat seconds. One barrel drives the going train for timekeeping, including the escape wheel and the star. The other barrel drives a secondary gear train for the deadbeat seconds hand and the flirt...

F.P. Journe Chronomètre à Résonance 20th Anniversary Featuring One Mainspring, One Differential, Two Geartrains, And Two Remontoire d’Egalité Escapements Quill & Pad
F.P. Journe Chronomètre à Résonance 20th Jun 6, 2021

F.P. Journe Chronomètre à Résonance 20th Anniversary Featuring One Mainspring, One Differential, Two Geartrains, And Two Remontoire d’Egalité Escapements

Launched in 2000, the Chronomètre à Résonance was the first wristwatch with a resonance mechanism and it catapulted F.P. Journe into the major leagues. This latest model in celebration of its 20th anniversary is an entirely new piece based on the resonance phenomenon that now incorporates a larger single mainspring (the original had two mainsprings) with a differential driving the two going trains and a pair of remontoire d’égalité escapements.

Experiencing Panerai’s Marina Militare - we wish we were there Time+Tide
Panerai s Marina Militare – Oct 3, 2019

Experiencing Panerai’s Marina Militare - we wish we were there

One of the most interesting watch ‘releases’ this year was Panerai’s series of experiential watches. Basically, the brand released a series of watches with a particular focus - diving, exploration, the armed forces - each with an associated ambassador or partner. One release was the regular version of the watch, and the second was a … ContinuedThe post Experiencing Panerai’s Marina Militare – we wish we were there appeared first on Time+Tide Watches.

Sneak Peek: Akrivia Rexhep Rexhepi Chronomètre Contemporain “Only Watch” SJX Watches
Rexhep Rexhepi Chronomètre Contemporain “Only Watch” Sep 16, 2019

Sneak Peek: Akrivia Rexhep Rexhepi Chronomètre Contemporain “Only Watch”

On a recent trip to Geneva I dropped by the Akrivia workshops in the city’s Old Town and spotted the Rexhep Rexhepi Chronomètre Contemporain “Only Watch”, still in its constituent parts and almost ready for assembly. The dial, however, was finished and gorgeous. It’s a serene grey-blue, made of translucent enamel over a hand-hammered dial plate. Produced with lots of careful effort and a tiny hammer, the hammered finish is usually only applied to Akrivia’s gold dials found on the AK series watches, and is being combined with enamel for the first, and probably only, time. It was a tedious process to get right, which is why the Akrivia is one of the last to be completed amongst the Only Watch line-up. Produced by the same Geneva enamel artisan that does the fired enamel, or grand feu, dials of the standard watch, this dial for the Only Watch example is the second one made, hence “version 2” on its packaging. Rexhep felt the first dial made was not up to scratch – it had too much variation in colour – and had a second one produced. And the first dial was finished only after a handful of trial runs, where it was established that the thinning effect of the hammered surface meant it could not be counter-enamelled on the back as the standard dials are. Aside from the hammered surface, the dial is also unique because the markings are painted in fired enamel, rather than printed. This makes the numbers, lines and text more substantial. And because the ena...

Review: Montblanc Heritage Chronométrie Collection Twincounter Date Deployant
Montblanc Heritage Chronométrie Collection Twincounter Feb 6, 2016

Review: Montblanc Heritage Chronométrie Collection Twincounter Date

Montblanc released the Heritage Chronométrie Collection Twincounter Date at SIHH 2016. This watch spiked our attention because of its utilitarian design and understated beauty. It stands out from the usual time and date wristwatch primarily because of its reinterpreted dial. While not excruciatingly obvious, the unusual subdial positioning of the seconds counter juxtaposed with a larger date subdial is what makes this watch so exciting to us.

Introducing - The Arnold & Son Perpetual Moon 41.5 Red Gold Cliff Grey Edition Monochrome
Arnold & Son Perpetual Moon 41.5 Red Jun 27, 2025

Introducing - The Arnold & Son Perpetual Moon 41.5 Red Gold Cliff Grey Edition

Swiss watchmaker Arnold & Son is named after the 18th-century English watchmaker John Arnold, the ingenious inventor who popularised the expression ‘chronometer’ to describe his precision marine timekeepers. Before the advent of marine chronometers to determine longitude at sea, navigators relied on the position of the Sun, Moon and stars to determine their position. Astronomy, […]

Introducing - The New Speake Marin Ripples Portobello, Inspired by London’s Colourful District Monochrome
Speake-Marin Jul 13, 2026

Introducing - The New Speake Marin Ripples Portobello, Inspired by London’s Colourful District

Speake Marin introduced the Ripples in 2022, and with it, the independent brand entered the crowded luxury sports watch category with its own, slightly eccentric creation. The rounded-square La City case, the strongly textured dial, and the small seconds at 1:30 made it instantly recognisable. Infinity Date, Dune Date, Ripples Skeleton and even a full […]

Introducing - The new Ferdinand Berthoud Chronometre FB 3SPC.2-1 Monochrome
Chopard s co-president Karl-Friedrich Scheufele Jul 7, 2026

Introducing - The new Ferdinand Berthoud Chronometre FB 3SPC.2-1

Following the resurrection of the name Ferdinand Berthoud by Chopard’s co-president Karl-Friedrich Scheufele in 2015, with the introduction of the Chronomètre FB1, a superb tourbillon watch with fusée-and-chain device, followed by the no less spectacular Chronomètre FB2, the brand presented another award-winning watch, a superb wrist chronometer with cylindrical balance-spring named the Chronomètre FB 3SPC – […]

First Look - The 1960s Marina Militare-Inspired Panerai Luminor PAM01731 and Luminor Destro PAM01732 Monochrome
Panerai Luminor PAM01731 Apr 14, 2026

First Look - The 1960s Marina Militare-Inspired Panerai Luminor PAM01731 and Luminor Destro PAM01732

It’s a big year for Panerai’s iconic Luminor, the rugged, luminous top-secret underwater ally developed for Italy’s Marina Militare in the 1950s, which surfaced for civilians in 1993. As a purveyor of precision instruments to the Italian Navy from 1900, Giuseppe Panerai amassed a wealth of experience in the development of specialised underwater equipment, prompting […]

Ferdinand Berthoud, Inverted: The Chronomètre FB 2TV.1 SJX Watches
Chopard s haut de gamme Apr 3, 2026

Ferdinand Berthoud, Inverted: The Chronomètre FB 2TV.1

Ferdinand Berthoud (FB), Chopard’s haut de gamme sub-brand, introduces its first flying tourbillon just weeks before Watches & Wonders. The Mesure du Temps 1787 Chronomètre FB 2TV.1 is exceptional in both quality and price, presenting almost everything of interest on the dial side - chain and fusee included - along with hacking and zero-reset seconds. The dial-side spectacle will be the calling card of the new Mesure du Temps 1787 collection. Initial thoughts The revival of long-dead masters’ names to sell unrelated watches is a practice that invites scepticism - and often deserves it. The Ferdinand Berthoud brand, however, is a different matter. There is nothing cynical about it, and one suspects the man himself wouldn’t mind being associated with some of the finest mechanical watches being made today - in his home town, no less. A different name on the dial, Scheufele perhaps, might still feel more authentic, but that’s a minor quibble with what is otherwise an overwhelmingly high quality watch. The latest take on the brand’s chronometer-inspired formula adds one of my favourite features: a zero-reset seconds hand. Though I prefer the designs of the brand’s past projects, the FB 2TV.1 suggests the team at FB understands what the market wants, and the movement-as-a-dial aesthetic is hot right now. The flying tourbillon is new for the brand, in both technique and aesthetics. Until now the brand’s massive revolving regulators were secreted away on the...