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Results for Marine Chronometer & The Longitude Problem

40,832 articles · 5,849 videos found · page 369 of 1557

Fratello Favorites: The Best Watches Under €2,500 - Daan’s Picks From Mido, Oris, And Polo Ralph Lauren Fratello
Cartier May 8, 2024

Fratello Favorites: The Best Watches Under €2,500 - Daan’s Picks From Mido, Oris, And Polo Ralph Lauren

People sometimes ask me on Instagram and in person which watches they should get. They often expect me to suggest watches from big names like Rolex, Cartier, and Omega. And yes, those brands make and offer great watches, but they’re also rather expensive for most people. In this series, we’re looking at our favorite watches […] Visit Fratello Favorites: The Best Watches Under €2,500 - Daan’s Picks From Mido, Oris, And Polo Ralph Lauren to read the full article.

Explained: The Detent Escapement SJX Watches
Breguet s natural escapement May 8, 2024

Explained: The Detent Escapement

Among the many different escapement types, one in particular stands out, the detent escapement. Taking its name from détente, French for “trigger”, this system is often considered to be the purest type of escapement due to its efficiency and virtually lubrication-free operation. Any sort of mechanical clock or watch requires an escapement, a mechanism that transfers torque from the power source to the regulating organ. The escapement bridges the steady rotation of the gears in the going train and the oscillation of the balance. As a result, the escapement fulfils a double function, both maintaining the swing of the balance and regulating the discharge speed of the mainspring and going train. The detent escapement was invented in the second half of the 18th century,  somewhat simultaneously but independently by the English watchmakers Thomas Earnshaw (1749-1829) and John Arnold (1736-1799). A somewhat similar escapement was prototyped by the Frenchman Pierre Le Roy (1717–1785) some three decades earlier, but the modern detent escapement is derived mostly from Earnshaw’s design. Initially, the escapement was conceived for use in marine chronometers, explaining why it is also known as a chronometer escapement. The chronometer escapement also inspired many innovative subsequent escapements, like the Breguet’s natural escapement, the Robin escapement, and the Daniels co-axial. Drawings of detent escapement types taken from ‘The Marine Chronometer: Its History and ...

Hands-On: The Audemars Piguet Royal Oak “Jumbo” Extra-Thin Openworked In White Gold Fratello
Audemars Piguet Royal Oak “Jumbo” Extra-Thin May 8, 2024

Hands-On: The Audemars Piguet Royal Oak “Jumbo” Extra-Thin Openworked In White Gold

This is hardly the first open-worked version of the legendary Audemars Piguet Royal Oak “Jumbo” Extra-Thin, but it is my favorite one so far. The perfection is in the white gold that “AP” used for the watch’s exterior, the internal and external finishing, and the choice of colors. The way the watch combines significant weight […] Visit Hands-On: The Audemars Piguet Royal Oak “Jumbo” Extra-Thin Openworked In White Gold to read the full article.

All the Way from New Zealand, the Beaufort Pulsatimer Worn & Wound
May 7, 2024

All the Way from New Zealand, the Beaufort Pulsatimer

Underpromise and over deliver pretty much sums up Aukland, New Zealand’s Beaufort Watches. Their goal is to create timeless pieces that fit all the criteria we look for in watches. A great story, a captivating design, and capabilities that can go beyond their specifications. Self-described as a brand that wants to invigorate the present with designs from the past, they seem to have successfully done so. New for 2024 is the Pulsatimer, which is Beaufort’s version of a pulsometer chronograph. Unlike previous models, there is a clear inspirational shift, and Brutalist styling has been at the forefront of Beaufort’s new design language following their rebranding in late 2023. This new piece is the first model following this shift in focus. Informed by the harsh angles of Brutalist architecture, throughout the watch, you will notice many steps. From the pulsations ring, subdials and the stepped bezel, all drawing from two main sources of inspiration:  The Faculty of Fine Arts, University of La Laguna, and University Campus, UTEC Lima. The aim was to give the Pulsatimer an old school industrial look with a touch of dressiness. Made of 316L stainless-steel, it features a mix of brushed, polished and media-blasted finishing. Measurements are 39mm in diameter, 13.8mm thick to the top of the box-domed sapphire crystal, and 47mm from lug tip to lug tip. Powering the Pulsatimer is the manually wound Sellita SW510 and it has a power-reserve of 63 hrs. It is also water-resistant ...

First Look – The New Yema Navygraf Slim CMM.20 with Micro-Rotor Movement Monochrome
Yema May 7, 2024

First Look – The New Yema Navygraf Slim CMM.20 with Micro-Rotor Movement

A strong advocate of French watchmaking and a brand with history, Yema keeps upgrading its collection with more horological content and designs to please vintage enthusiasts. This blend of modern watchmaking and historic looks was the base of the recently presented Superman Slim CMM.20, the icon of the brand powered by a manufacture micro-rotor calibre developed and assembled in France. Now, it's time for the Navygraf, the other dive watch of Yema to be upgraded and refined with these nice mechanics. Meet the new Navygraf Slim CMM.20 diver.

Tudor Black Bay: A Comprehensive Guide to the Collection Teddy Baldassarre
Tudor May 7, 2024

Tudor Black Bay: A Comprehensive Guide to the Collection

The Tudor Black Bay took watch fandom by storm when it hit the market in 2012 and the sporty, vintage-inspired divers' watch has since grown into an extensive family with something for just about everyone, now boasting in-house calibers, multiple styles and sizes, and even some precious metals and complications. In this comprehensive guide we explore the origins of the Tudor Black Bay and showcase the standout models you can buy right now.  FOUNDATIONS OF TUDOR With an eye toward making watches that would be affordable while still maintaining a high level of quality, Rolex founder Hans Wilsdorf registered the Tudor brand trademark in 1926, and began running the Tudor company as a subsidiary brand of Rolex in 1946. Tudor watches were the only watches on the market at the time that featured reliable third-party movements inside the famed waterproof Rolex Oyster case, also developed in 1926, and were initially more geared toward the tool watch market than were Rolex timepieces, which already enjoyed a reputation as luxury items. The first Tudor watch with the “Oyster” name followed shortly after the launch of the brand, in 1947, kicking off a long tradition of timepieces suitable for underwater adventure. The first Tudor Prince model followed in 1952, around the same time that Tudor began an R&D; partnership with the French Navy (Marine Nationale), from which would emerge the brand’s first dive watch. THE OYSTER PRINCE SUBMARINER The Tudor Oyster Prince Submariner, Tu...

The White Omega Speedmaster Moonwatch - Better Than The Silver Snoopy Award? Fratello
Omega Speedmaster Moonwatch - Better Than May 7, 2024

The White Omega Speedmaster Moonwatch - Better Than The Silver Snoopy Award?

After Omega introduced several Speedmasters not aimed at Moonwatch enthusiasts (e.g. the Speedmaster Super Racing with Spirate technology and the updated Speedmaster Apollo 8), the white-dial Speedmaster Professional Moonwatch finally came out on March 5th, 2024. I use the word “finally” because Omega had already shown it in October 2023 on the wrist of former […] Visit The White Omega Speedmaster Moonwatch - Better Than The Silver Snoopy Award? to read the full article.

Mido Introduces The Limited Carbon Edition Of Its Versatile Ocean Star 200C Fratello
Mido May 7, 2024

Mido Introduces The Limited Carbon Edition Of Its Versatile Ocean Star 200C

When I hear the name Mido, the first Ocean Star watches that come to mind are the vintage-inspired models. I like the Ocean Star Tribute, the Ocean Star Decompression Worldtimer, and the Ocean Star GMT. They all have an undeniable charm that is hard to ignore. But the brand also makes a series of modern […] Visit Mido Introduces The Limited Carbon Edition Of Its Versatile Ocean Star 200C to read the full article.

First Look – The Girard-Perregaux Laureato 42mm Pink Gold, Now With Sage Green and Ultramarine Blue Dials Monochrome
Girard-Perregaux Laureato 42mm Pink Gold May 7, 2024

First Look – The Girard-Perregaux Laureato 42mm Pink Gold, Now With Sage Green and Ultramarine Blue Dials

One of the earliest models in the so-called luxury sports watch category, the Girard-Perregaux Laureato, was released in 1975 and powered by a quartz movement. In 1984, mechanical movements found their way into this original barrel-shaped watch, and this has become the norm since the return of the watch in 2016. Now an established collection […]

Fratello Favorites: The Best Watches Under €2,500 - Thomas’s Picks From Longines, Lorca, And More Fratello
Longines Lorca May 7, 2024

Fratello Favorites: The Best Watches Under €2,500 - Thomas’s Picks From Longines, Lorca, And More

It is time for another round of Fratello editors’ favorites in a specific segment. This time, we are looking at the best watches under €2,500, and I get the honor of kicking it off. Now, while €2.5K is a huge amount of money by any measure, it is starting to feel quite limiting within the […] Visit Fratello Favorites: The Best Watches Under €2,500 - Thomas’s Picks From Longines, Lorca, And More to read the full article.

When the Rolex Oyster Perpetual is More Than an Entry-Level Watch SJX Watches
Rolex Oyster Perpetual May 7, 2024

When the Rolex Oyster Perpetual is More Than an Entry-Level Watch

A no-frills time-only watch, the Rolex Oyster Perpetual is now the brand’s entry-level model that’s available in a variety of dial styles and sizes, including the sought-after “Bubbles” dial. But Rolex has been making watches for long enough that the Oyster Perpetual from many moons ago is now a six- or seven-figure watch. Two of these special Oyster Perpetuals figure prominently in Phillips’ upcoming Geneva auction. They are final two lots on the last day of the sale: lot 218 is the Oyster Perpetual ref. 6098 “Galaxy”, and lot 219 is the Oyster ref. 6102 cloisonné “La Caravelle” with bombe lugs. The Oyster ref. 6098 “Galaxy” The Oyster ref. 6102 “La Caravelle”. Both are time-only watches with Oyster cases, but the opposite of no-frills. They date from the 1950s, when Rolex was experimenting with a diverse range of dials for the Oyster Perpetual (and perhaps the recent 1908 in platinum is a return to form?) The “Galaxy” gets its name from the star-shaped indices on the glossy black dial, while “La Caravelle” refers to the cloisonné enamel dial made by a leading enameller of the period, Margueritte Koch. Today’s Oyster Perpetual with the “Celebration” dial of coloured bubbles Star-crossed Rolex watches with star dials are marvellous watches (which is why it was the inspiration for our Habring² Erwin “Star”). The most famous and expensive type of Rolex with such a dial is the ref. 6062 “Stelline” triple calendar. Less widel...

Hands-On: the Zelos Spearfish Dual Time Worn & Wound
May 6, 2024

Hands-On: the Zelos Spearfish Dual Time

If a tide pool at a waterpark represented the world of micro/independent watches, some brands would be the kids who sit at the edge, waiting for a wave to bowl them over, others would be the dad that overcompensates by proving he can swim all the way out to the source only before losing his trunks, and then there’s Zelos…the person who showed up in their custom Speedo and polarized purple goggles doing laps around the perimeter. If you want a quality diver, finished brilliantly, made with interesting materials, eye-popping dials, all for around $500, Zelos has you covered. However, there is another Zelos. One that lights up a cigar, slips out of their lounge sandals, and makes their way into a meticulously curated tranquility pool…but still with the purple polarized goggles. This Zelos comes around a couple times a year, playing with high-end Swiss movements and interesting complications.  The first “tranquility pool” Zelos of the year recently hit the market. They took the case from their popular Spearfish line and released the Spearfish Dual Time. Three of the five watches in the line are made of titanium and come on titanium bracelets; the remaining two have cases made from forged carbon and come on a canvas leather strap. I had the pleasure of trying out the Moonscape forged carbon model for a little over a week, and while I do have some complicated thoughts on the model itself, what is indisputable is that you’re getting lavish materials and an elaborate ...

Tuul Launches the Filthy 13, a New Take on the Classic Military Spec Tool Watch Worn & Wound
May 6, 2024

Tuul Launches the Filthy 13, a New Take on the Classic Military Spec Tool Watch

It’s always fun when we get to introduce you to a new entrant in the micro-brand tool watch space, and today is no exception. Tuul (pronounced tool) is a brand new Brooklyn-based micro-brand with a focus on - you guessed it - tool watches. If you spend too much time on Instagram (who am I kidding, we all do), you may have seen teasers for their first watch peppered through your feed over the last year. Now, with the introduction of the Filthy 13, we’re finally getting to see what a Tuul watch looks like. For a new brand building their first watch, it is almost always the right choice to go simple. Making a watch is hard, making a good watch even harder, and overcomplicating the process can easily turn the whole thing into a jumbled mess. Besides, tool watches should be simple and straightforward, ready to do their job and not much else. So it’s no big surprise that Tuul has fallen back on a familiar source of inspiration for their first release - the Dirty Dozen watches issued by the MoD to British troops during World War II, which is in many ways the prototypical tool watch. The Filthy 13 follows closely in the footsteps of the Dirty Dozen Watch, Wrist Waterproof spec and carried over the familiar dial layout with central hour and minute hands, small seconds at six o’clock, large Arabic numerals, a railroad minute track, and an abundance of lume. The Filthy 13 swaps the radioactive paint used on the original dials for Super-Luminova, which here has a slightl...