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Results for Caliber B19

586 articles · 50 videos found · page 13 of 22

Valjoux 7750: The Story Of The World's Most Famous Chronograph Teddy Baldassarre
Jul 16, 2025

Valjoux 7750: The Story Of The World's Most Famous Chronograph

The Valjoux 7750 chronograph caliber has been a mainstay of the Swiss watch industry for more than 50 years, finding its way into hundreds of watch models, under many dozens of names, and providing the technical base for numerous high complications over the years. Why is it so ubiquitous and still such an enduring presence in the watch world today? Here is a brief history of the "workhorse" mechanism that became the world's most famous and familiar chronograph movement.   Valjoux 7750 Roots: The Vallée de Joux   Sunset over the Vallée de Joux In actuality, the origins of the Valjoux 7750 go back much longer than the half-century it has actually been on the market. The company that came to be called  “Valjoux” started up at the very beginning of the 20th century, taking its original name, Reymond Frères SA, from its founders, brothers John and Charles Reymond. The company, which specialized in making mechanical chronograph movements for military and sport-oriented timekeepers, changed its name in 1929 to Valjoux - a shortened reference to the scenic Vallée de Joux in Switzerland, where it and many of its client watchmakers were located. The firm’s most successful and historically impactful creations included the manually wound, column-wheel-driven, monopusher Caliber 22, in 1914, and its even more significant successor, the smaller, longer-lived Caliber 23, in 1916. In honor of the founding brothers' surname, Valjoux movements were inscribed with a shield em...

Sunday Morning Showdown: Christopher Ward C60 Trident Lumière Vs. TAG Heuer Aquaracer Professional 200 Solargraph Fratello
Christopher Ward C60 Trident Lumière Vs Jun 29, 2025

Sunday Morning Showdown: Christopher Ward C60 Trident Lumière Vs. TAG Heuer Aquaracer Professional 200 Solargraph

It’s that time of the week again, and we are back with a heated Sunday Morning Showdown. This time, Daan and Jorg will battle it out in a clash of lightweight titanium divers that they would love to wear this summer. Daan picked the TAG Heuer Aquaracer Professional 200 Solargraph. Its solar-powered quartz caliber makes […] Visit Sunday Morning Showdown: Christopher Ward C60 Trident Lumière Vs. TAG Heuer Aquaracer Professional 200 Solargraph to read the full article.

Hands-On Review With The New Grand Seiko Spring Drive U.F.A WatchAdvice
Grand Seiko Spring Drive U.F.A Grand Jun 14, 2025

Hands-On Review With The New Grand Seiko Spring Drive U.F.A

Grand Seiko’s Spring Drive U.F.A (SLGB003) sets a new benchmark in mechanical watchmaking with an astonishing ±20 seconds per year accuracy. Wrapped in a new slimmer Evolution 9 case and finished with a dial inspired by winter in Shinshu, it’s a masterclass in subtle innovation and timeless elegance. What We Love The Calibre 9RB2 delivers an incredible +/- 20 seconds per year, redefining what is possible from a mainspring-powered mechanical movement The new 37mm case size makes the timepiece highly wearable for a wide range of wrist sizes. The beautifully textured dial captures Grand Seiko’s unique blend of craftsmanship and storytelling. What We Don’t While very comfortable, the standard three-link bracelet feels a little too plain for a release of this calibre. For a groundbreaking caliber, the caseback view feels a little subdued. For such a significant release, the design feels a little too in line with previous Evolution 9 models. Overall Rating: 9.25 / 10 Value for Money: 9.5/10 Wearability: 9.5/10 Design: 9/10 Build Quality: 9/10 Grand Seiko was first established in 1960 as a sister brand to Seiko, created to combat the Swiss watchmakers and their high-end luxury timepieces. While Seiko made affordable everyday timepieces, It was Grand Seiko’s role to create unique, innovative pieces that would cater to the luxury and high-end watchmaking market. Among the many different innovations and stunning dial aesthetics, one key aspect that truly makes Grand S...

J.N. Shapiro Debuts Entry-Level Infinity Series Pure SJX Watches
Hamilton shut down Jun 4, 2025

J.N. Shapiro Debuts Entry-Level Infinity Series Pure

J.N. Shapiro’s Infinity Series Pure is a new entry point into the American brand. This follows the top-of-the-line Resurgence, the most American-made mechanical wristwatch built since Hamilton shut down in the 1960s. This new model focuses purely on the dial and hands, which are excellent, while trusting Swiss suppliers with ancillary details like the case and caliber. The result is a much more accessible, though less impressive, watch than J.N. Shapiro’s usual fare. Initial Thoughts When the original Infinity line was discontinued in 2023, it left the brand without an entry-level watch, and the company put all of its efforts behind the ambitious Resurgence project. Now that things have settled down, the team once again has the bandwidth to support a second model. The Infinity Series Pure uses an off-the-shelf La Joux-Perret (LJP) movement. While a good, slim movement with an extended power reserve, the LJP F200/7380 isn’t particularly premium, and a downgrade from the UWD cal. 33.1 used in previous infinity models. For example, Ralph Lauren uses the LJP movement in its Vintage 67 line priced at around US$3,000. The case is also outsourced, likely to a Swiss manufacturer, through the Alternative Horological Alliance (AHA), a consortium of independent brands that J.N. Shapiro helped found. This focuses all of Shapiro’s attention on the dial and hands, though both are significantly less complex than on the Resurgence. At US$26,000 the Infinity Series Pure is about a ...

What’s The Perfect Size For The Rolex Land-Dweller? Fratello
Rolex Land-Dweller? Jun 4, 2025

What’s The Perfect Size For The Rolex Land-Dweller?

The Rolex Land-Dweller was the most talked-about release of this year’s Watches and Wonders. Regardless of whether the watch appealed to everyone, due to the groundbreaking new caliber and revival of the Oysterquartz design, the general impact of the Land-Dweller was palpable. We had an opportunity to experience the 36mm and 40mm models during Watches […] Visit What’s The Perfect Size For The Rolex Land-Dweller? to read the full article.

An In-Depth Look At The New Rolex Dynapulse Escapement Fratello
Rolex Dynapulse Escapement Rolex surprised Apr 18, 2025

An In-Depth Look At The New Rolex Dynapulse Escapement

Rolex surprised friend and foe with a new movement at this year’s Watches and Wonders. While that’s always a relatively big deal in our little horological sub-universe, caliber 7135 represents a particularly big milestone. Rolex developed a brand-new escapement dubbed Dynapulse. We felt it was about time we took a closer look at it. Of […] Visit An In-Depth Look At The New Rolex Dynapulse Escapement to read the full article.

Introducing: The Gerald Charles Maestro GC39 25th Anniversary Edition Fratello
Gerald Charles Mar 31, 2025

Introducing: The Gerald Charles Maestro GC39 25th Anniversary Edition

In celebration of its quarter-century anniversary, Gerald Charles presents the Maestro GC39 25th Anniversary Edition. This is a jump-hour watch with an in-house-designed caliber. Naturally, the new timepiece features the brand’s signature baroque case shape, but it is fully modernized with Grade 5 titanium construction. We’ve covered the majority of new releases from Gerald Charles […] Visit Introducing: The Gerald Charles Maestro GC39 25th Anniversary Edition to read the full article.

Introducing: The Grand Seiko SLGH027 “Mountainscape” Hi-Beat 65th Anniversary Limited Edition Fratello
Grand Seiko SLGH027 “Mountainscape” Hi-Beat 65th Feb 3, 2025

Introducing: The Grand Seiko SLGH027 “Mountainscape” Hi-Beat 65th Anniversary Limited Edition

Today, Grand Seiko introduces the SLGH027 “Mountainscape,” a limited-edition watch celebrating the brand’s 65th anniversary. The piece features the automatic Hi-Beat 9SA5 caliber, which debuted in 2020. As part of the Evolution 9 collection, this watch is not retro at all but a modern reference with stunning details. Grand Seiko always has a strong start […] Visit Introducing: The Grand Seiko SLGH027 “Mountainscape” Hi-Beat 65th Anniversary Limited Edition to read the full article.

Introducing: The Re-Engineered 42mm Hublot Big Bang Meca-10 In Three Versions Fratello
Hublot Big Bang Meca-10 Jan 21, 2025

Introducing: The Re-Engineered 42mm Hublot Big Bang Meca-10 In Three Versions

Ever since the Big Bang Meca-10 came out in 2016, the watch has stood out thanks to its 10-day caliber with a Meccano-inspired architecture. This year, though the 10-day power reserve isn’t new, some other things are. The re-engineered Hublot Big Bang Meca-10 now measures 42mm in diameter and comes in three variations. You can […] Visit Introducing: The Re-Engineered 42mm Hublot Big Bang Meca-10 In Three Versions to read the full article.

Hands On: Grand Seiko Spring Drive Chronograph SBGC275 SJX Watches
Grand Seiko Spring Drive Chronograph SBGC275 Dec 4, 2024

Hands On: Grand Seiko Spring Drive Chronograph SBGC275

Twenty-twenty four marks the 20th anniversary of Grand Seiko’s 9R Spring Drive movement platform, an occasion the brand has chosen to mark with a range of anniversary editions including the Grand Seiko Caliber 9R 20th Anniversary SBGC275. A large, richly detailed watch with a captivating dial, the SBGC275 is robust, interesting, and capable of nearly anything, short of fitting under a short cuff. Initial thoughts At first glance, the SBGC275 looks like just a Spring Drive chronograph with a red dial. But a closer look reveals a highly nuanced colour that changes from red to orange depending on the angle – the result of a proprietary dial coating technique. At 44.5 mm in diameter and nearly 17 mm thick, the SBGC275 is unapologetically big and bold. That said, the watch feels smaller than it is thanks to the use of titanium for the case and bracelet, and the unusually wide 23 mm lug width helps reduce the visual size. This latter dimension may limit the options for aftermarket straps, but since most owners will likely stick with the bracelet, this concern is largely academic. The watch is powered by an upgraded version of the familiar cal. 9R86 Spring Drive chronograph GMT movement, which made its debut in 2007. But eagle-eyed movement geeks will notice the SBGC275 is equipped with the fine-tuned cal. 9R96 first seen in 2017, which was also used in the Nissan GT-R 50th Anniversary edition. In many ways, the SBGC275 captures Grand Seiko’s strengths and weaknesses. The b...

The New Berneron Mirage 34 - My Favorite Watch Of 2024 Fratello
Berneron Oct 25, 2024

The New Berneron Mirage 34 - My Favorite Watch Of 2024

The new Berneron Mirage 34 joins last year’s 38mm models in the small brand’s growing lineup. As we’ll see, these aren’t simply downsized editions. Each model showcases a stone dial and a new caliber. Hint: these are my favorite watches of this year so far. Sylvain Berneron is the name behind the eponymous brand he […] Visit The New Berneron Mirage 34 - My Favorite Watch Of 2024 to read the full article.

A Monday-Morning Reunion With The Blancpain Villeret Quantième Complet Fratello
Blancpain Villeret Quantième Complet Three Oct 7, 2024

A Monday-Morning Reunion With The Blancpain Villeret Quantième Complet

Three years ago, I had the pleasure of wearing the Blancpain Villeret Quantième Complet for a little while. The combination of a 40mm steel case with a characteristic stepped bezel, a classic white dial, and a complete-calendar caliber proved an impressive watch at a competitive price. I wrote that the watch that bucks the retro […] Visit A Monday-Morning Reunion With The Blancpain Villeret Quantième Complet to read the full article.

My 25 Years Of Owning The Omega Speedmaster Professional Fratello
Omega Speedmaster Professional Oct 1, 2024

My 25 Years Of Owning The Omega Speedmaster Professional

On this very day, October 1st, 25 years ago, I bought my first Omega Speedmaster watch. I was a student at the time and obsessed with watches, specifically, Omega Speedmasters. My first purchase was a Speedmaster 145.012 with caliber 321. One evening, I was cycling in the city center of The Hague and passed a […] Visit My 25 Years Of Owning The Omega Speedmaster Professional to read the full article.

Introducing: Three New Seiko Astron GPS Solar Watches - SSJ023, SSJ025, And SSJ026 Fratello
Seiko Astron GPS Solar Watches Sep 24, 2024

Introducing: Three New Seiko Astron GPS Solar Watches - SSJ023, SSJ025, And SSJ026

The Seiko Astron GPS Solar with an easy-wearing tonneau case design debuted in the spring of 2022. This series started with four models housing Seiko’s 5X53 dual-time movement, and after that, several models followed, including ones with the chronograph caliber 5X83. Now three new, simpler references assume their places in the core collection. The dark […] Visit Introducing: Three New Seiko Astron GPS Solar Watches - SSJ023, SSJ025, And SSJ026 to read the full article.

Fratello’s Top 5 Classic Valjoux 72-Powered Watches - Featuring Rolex, Enicar, Breitling, And More Fratello
Breitling Sep 20, 2024

Fratello’s Top 5 Classic Valjoux 72-Powered Watches - Featuring Rolex, Enicar, Breitling, And More

Another Friday, another list! This week, we continue our exploration of legendary movements. For this list, we have selected five classics with the famous Valjoux 72. As you will see, this chronograph caliber powered some of the most legendary watches that horology fans love. That’s why creating a list of the five standout Valjoux 72-powered […] Visit Fratello’s Top 5 Classic Valjoux 72-Powered Watches - Featuring Rolex, Enicar, Breitling, And More to read the full article.

The Difference Between Quartz, Manual, and Automatic Movements Worn & Wound
Sep 18, 2024

The Difference Between Quartz, Manual, and Automatic Movements

When shopping for a new watch, the movement is often a point of consideration for many enthusiasts. But what does it do? Simply put, the movement, often referred to as a “caliber,” is the engine powering the watch and regulating the rotation of its hands. While some may feature additional features called complications, their primary duty is accurate time-telling. Today, we’ll walk through the basic differences between manual, automatic, and quartz movements. When shopping for a new watch, the movement is often a point of consideration for many enthusiasts. But what does it do? Simply put, the movement, often referred to as a “caliber,” is the engine powering the watch and regulating the rotation of its hands. While some may feature additional features called complications, their primary duty is accurate time-telling. Today, we’ll walk through the basic differences between manual, automatic, and quartz movements. The post The Difference Between Quartz, Manual, and Automatic Movements appeared first on Worn & Wound.

Grand Seiko Just Released a Collector’s Dream Watch! Worn & Wound
Grand Seiko Just Released Sep 2, 2024

Grand Seiko Just Released a Collector’s Dream Watch!

At Watches & Wonders 2024, Grand Seiko announced the new 9SA4 caliber and the first two watches featuring it, the SLGW002 and SLGW003. As a refresher, the 9SA4 is a manual hi-beat (36,000 bph), 80-hour, time-only caliber featuring their in-house dual-impulse escapement, first seen in the 9SA5. With a power reserve on the back of the movement, beautiful bridge designs and finishing, and a unique “wagtail-bird-shaped” winding click, it set a new bar for Grand Seiko’s mechanical calibers. But, perhaps just as exciting as the movement itself was that the watches featuring it were sized at an idyllic 38.6mm diameter and 9.95mm thickness with a 20mm lug, addressing the naysayer’s concerns around Grand Seiko’s sizing. While a pair of fantastic releases, since introduction, we have been wondering where we will see this movement next. Well, we just got our answer, and I have to tell you, I’m equally surprised and delighted. They went vintage rather than with the new case and a different dial, which would have been most expected. Yes, they decided to bring back, as a limited edition, of course, a “recreation” of the 45GS from 1968. A little history, the 45GS came out a year after the 44GS and featured the same case design, but differed in that it featured the brand’s first hi-beat manual wound movement, the 4520. The SLGW005 – the return of the 45GS The 44/45GS case defines the Grand Seiko “Grammar of Design” as set out by Taro Tanaka, with flat, Zaratsu poli...

Girard-Perregaux Introduces a New Casquette in Collaboration with Saint Laurent Worn & Wound
Girard-Perregaux Introduces Jul 11, 2024

Girard-Perregaux Introduces a New Casquette in Collaboration with Saint Laurent

We love quartz watches at Worn & Wound. For many of us, they were the first watches we ever wore, and represent a foundation of enthusiasm that has stretched on for years. There are many, many facets to quartz, and if you think of quartz watches simply as “affordable” alternatives to mechanical, you’re missing out on a lot of history, unique design, and special movements that simply aren’t possible with a mechanical caliber. One of my favorite little quartz rabbit holes is the output of traditional, high-end Swiss brands during the earliest days of the technology, leading up into the period often referred to as the “quartz crisis.” It’s fascinating to look back and see how these brands handled such a major shock to a centuries old industry, and the quartz watches produced by the most storied Swiss brands during this period are almost always significant, carrying with them design attributes that effectively distinguish them from traditional mechanical watches.  The Girard-Perregaux Casquette is one of my favorite examples of a storied Swiss brand experimenting with quartz at the very beginning. The Casquette first appeared in 1976 and was brought back as the Casquete 2.0 in 2022 in a limited edition that quickly sold out to some degree of fanfare and acclaim. The watch has what is now frequently referred to as a “driver’s style” orientation, with an LED display that displays the time digitally when viewed from the side. In the mid-1970s, this certainly ...

Hands-On With The New Anthracite Armin Strom One Week Manufacture Edition Fratello
Armin Strom One Week Manufacture Edition Jun 24, 2024

Hands-On With The New Anthracite Armin Strom One Week Manufacture Edition

We kick off this Tuesday morning with the world premiere of the new Armin Strom One Week Manufacture Edition. It is the follow-up to last year’s inaugural redesigned One Week First Edition, which was nothing short of impressive. Both watches celebrate Armin Strom’s debut in-house caliber from 2010 in a sleek, modern way. The ever-impressive […] Visit Hands-On With The New Anthracite Armin Strom One Week Manufacture Edition to read the full article.