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Chronometer (COSC)

The Swiss accuracy certification at -4/+6 s/day across 15 days.

First Look – Chopard Celebrates 25 Years of the Quattro with a Refreshed & Compact L.U.C Quattro Monochrome
Chopard Celebrates 25 Years Apr 2, 2025

First Look – Chopard Celebrates 25 Years of the Quattro with a Refreshed & Compact L.U.C Quattro

The ultra-thin, 3.7mm Calibre 98.01-L, certified by both the Poinçon de Genève and COSC, was the second developed by the Chopard manufacture and followed the groundbreaking Calibre L.U.C 96.01-L, which was created in collaboration with Michel Parmigiani and laid the foundation for future movement development. The manually wound 98.01-L featured Chopard’s so-called Quattro technology: a […]

Zenith Reimagines Its Caliber 135 For The 21st Century Teddy Baldassarre
Zenith Apr 1, 2025

Zenith Reimagines Its Caliber 135 For The 21st Century

The year 2025 marks 160 years since the founding of Zenith in Le Locle, Switzerland, back in 1865. As watchmaking brands are wont to do, Zenith is commemorating this milestone by putting forward a watch for the occasion that’s representative of its storied history, as well as its own contemporary identity. Now, as Watches & Wonders 2025 kicks off, we are clear on how the brand aims to celebrate the occasion, and its chosen vehicle is a new collection inspired by Zenith’s own founder, complete with an update on its storied Caliber 135, which breathes fresh life into an old favorite movement. These are the conditions in which the rising star of the G.F.J. collection joins Zenith’s constellation. At the tail end of the 19th century, the mounting competition within the watch industry brought about a new standard of gauging the accuracy of movements, and watchmakers began employing observatory trials to signal to customers that their products were as accurate as possible. This was also at a time in which highly accurate timepieces were necessary for successful marine navigation. Before the COSC certification standards that are so rigidly defined today were coded, individual movements would be sent to observatories, where they would undergo testing procedures, as well as competitions for chronometry prices. Zenith details that it had been routinely entering chronometry trials as early as 1897. And, because a bit of healthy bragging is appropriate with brag-worthy achieveme...

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Longines Spirit Flyback Between Dec 3, 2024

Lookbook: Get into the Holiday Spirit with the Longines Spirit Flyback

Between the office holiday party, family get-togethers, and galavanting around town-’tis the season for leveling up your go-to timepiece for special occasions and cold weather layering. There are only so many options out there when it comes to a COSC-certified chronograph with a sweet selection of both case materials and colors. The Longines Spirit Flyback collection, with its wildly useful quick reset chrono functionality, is the perfect companion to ensure you won’t be late to any of those special events or last minute holiday sales. We managed to get our hands on three different variants and styled them for the season. The post Lookbook: Get into the Holiday Spirit with the Longines Spirit Flyback appeared first on Worn & Wound.

Highlights: Phillips Geneva Online Auction Fall 2024 SJX Watches
Seiko Izul “bullhead” chronograph We Sep 8, 2024

Highlights: Phillips Geneva Online Auction Fall 2024

The fall auction season kicks off with online auctions, before the primary live sales that take place in November. Phillips in Geneva just opened its online auction with a 70-lot offering of the familiar and mainstream (think Aquanaut, Royal Oak, and Nautilus), but also the esoteric and independent, ranging from an Alain Silberstein perpetual calendar made by Svend Andersen to a Seiko Izul “bullhead” chronograph. We round up a few highlights from the sale, which runs from September 5-12, 2024, with the catalogue and bidding available online. Lot 9 –  Alain Silberstein Marine Perpetual Calendar by Svend Andersen Part of Alain Silberstein’s Marine series of dive watches, the Marine Perpetual is a COSC-certified perpetual calendar in a case rated to 200 m. It’s equipped with a clever, double-sided perpetual calendar movement developed by Svend Andersen. Built on an ETA 2892, the perpetual calendar has a minimalist display with only the date on the dial that’s decorated in Silberstein’s trademark style with geometric shapes, primary colours, along with a starfish, crescent, and sun. On the reverse is the months and leap year in a single register that is mounted on the periphery of the movement, allowing the rotor to travel below the indicator. The Marine Perpetual was a limited edition of 100 watches, though it is likely fewer were made, since they are rarely encountered. It was one of several collaborations that Alain Silberstein in the 1990s with prominent in...

Longines’ Retro Legend Diver 39 mm in Modern Colours SJX Watches
Blancpain have established Sep 3, 2024

Longines’ Retro Legend Diver 39 mm in Modern Colours

For the 65th of its trademark vintage dive watch of the 1960s, Longines is giving the modern remake a set of new colours. The new Legend Diver is essentially extensions of last year’s release, retaining the double-crown case in the smaller 39 mm size and gaining new dial colours in green, terracotta, or anthracite grey. The model is equipped with a “grains-of-rice” stainless steel bracelet with a micro-adjustment feature. Initial thoughts While many brands, namely Rolex and Blancpain, have established a familiar template for the dive watch, Longines has its a distinct design with the Legend Diver that has its characteristic Super Compressor case with two crowns and internal bezel. The design isn’t unique to Longines but the brand has arguably been most successful with it in the modern day And compared to other Super Compressor-style divers in this price range, the Legend Diver has the advantage of a higher-spec movement in the form of the COSC-certified L888.6 with 72 hours of power reserve. This makes the Legend Diver an appealing and affordable watch that’s priced at US$3,400. Lacquered colours The highlight of the release are the lacquered dial in green, terracotta and anthracite grey. The colour extends to the rotating bi-directional bezel designed for measuring dive time. The bezel can be rotated utilising the screw-in crown at two o’clock. The dial layout is symmetrical with no date, and features elongated indices and raised Arabic numerals coated with Su...

Tudor Introduces the Black Bay Chrono Blue SJX Watches
Breitling s B01 but upgraded Aug 30, 2024

Tudor Introduces the Black Bay Chrono Blue

Tudor’s latest release is the Black Bay Chrono Blue, a boutique-exclusive with a familiar “Panda” dial with snowflake hands, but now in “Tudor Blue”. Just like its pink dial, limited production counterpart, the new chronograph is equipped with a “5-link” bracelet, which is basically Tudor’s version of the Jubilee bracelet. Initial thoughts Tudor is a brand that combines appealing, functional design with historical basis – and an exceptional price-performance ratio. Though still excellent value, the Black Bay Chrono Blue is not revolutionary; the only novel element is the blue dial. However, it remains a strong option for anyone looking for affordable sports chronograph with a high-spec movement. I prefer the look of the original black-and-silver “Panda” dial, but I would lean towards the new variant simply because it is the only regular production model equipped with the “5-link” bracelet that pairs well with the design. Priced at US$5,675, the Black Bay Chrono Blue is a great value proposition. Its strongest feature is the COSC-certified MT5813, a calibre based on Breitling’s B01 but upgraded significantly by Tudor and likely the best chronograph movement at this price point. Tudor blue The stainless steel case is 41 mm in diameter and 14.4 mm in thickness. Water resistant to 200 m, the case features a screw-down crown engraved with the Tudor rose logo and screw-down pushers. The case is satin-brushed on its tops, and mirror-polished on its sid...

eBay Finds: A Classic Omega, a Fun Timex with a Familiar Beagle on the Dial, and a Gorgeous and Rare Piaget Chronograph Worn & Wound
Piaget Chronograph eBay Finds Aug 16, 2024

eBay Finds: A Classic Omega, a Fun Timex with a Familiar Beagle on the Dial, and a Gorgeous and Rare Piaget Chronograph

eBay Finds is back! This bi-monthly installment will feature a selection of watches currently listed on eBay that have caught the eye of editor Christoph McNeil (@vintagediver). If you come across any hidden gems on the ‘Bay drop us a note at info@wornandwound.com for potential inclusion! Vintage Timex Snoopy Tennis Watch  Starting off this week with a fun one, a vintage Timex Snoopy Tennis watch with the original box! Remember these from when we were kids? I sure do! The watch is gold tone with a blue denim-pattern dial and of course Snoopy on the dial. His arm holding the racket along with the tennis ball are printed on a clear disc that rotates as the second hand. It has the original blue denim strap as well as the super cool Snoopy doghouse original plastic box. I mean, this nifty watch isn’t going to pass COSC testing, but just look how cool the whole package is! View auction here Vintage Seiko Sea Lion M88 This vintage Seiko Sea Lion M88 has a unique look that really stands out. The case is square(ish) but contrasted with the white round dial. The case looks unpolished with nice sharp edges and the original brushed finish. The dial is wild, with horizontal lines connecting the raised square steel hour markers. It has a date only window at 3 o’clock along with the classic Seiko dauphine hands. The caseback has a nifty sea lion logo engraved on it too. This is a cool one that should be easy on the watch budget but still be a fun one to wear with plenty of vintag...

Horage and the Ingenious New Revolution 3 MicroReg Worn & Wound
Jul 30, 2024

Horage and the Ingenious New Revolution 3 MicroReg

Okay, I admit it. I don’t really care about my watches’ accuracy. Don’t get me wrong, I want my watches to be relatively accurate - and I certainly want them to be in spec - but I want the watchmakers to care about that so I don’t have to. At the end of the day, I just can’t bring myself to care all that much about a couple of seconds over the course of a day. After all, what’s 10 or 15 seconds held up against 86,400? The world doesn’t really operate on that sort of accuracy, and my day-to-day writing about watches certainly doesn’t demand it. That said, while I may not care all that much about accuracy in the abstract, I love it when brands pursue accuracy. I’m a sucker for a clever escapement, a new technique, or a wild swing, and beyond all that, I love the creativity that the pursuit of accuracy tends to elicit. So when Horage announced the Revolution 3 Microreg last week, it certainly caught my eye. The standout feature of the Horage Revolution 3 Microreg, which was made using technology developed by Swiss engineering firm Miniswys, is the ability to regulate the watch at home using a miniature electric motor connected to the escapement’s regulator and controlled by an external dock which allows adjustment in increments as low as 0.1 seconds. Pair this with what is already a COSC-certified movement and what you get is the potential for a remarkably accurate watch that bridges the gap between, as Horage puts it, regulation and reality. One of t...

REVIEW: Hands On With The Beautiful IWC Ingenieur WatchAdvice
IWC Ingenieur Jul 22, 2024

REVIEW: Hands On With The Beautiful IWC Ingenieur

The IWC Ingenieur is, in my opinion, one of Gerald Genta’s most underrated designs. But does it hold up compared to some of his most iconic pieces? Let’s find out! What We Love: Breathtaking design Moulds perfectly onto my wrist Genta heritage, but feels unique What We Don’t: A micro-adjust butterfly clasp would be nice Would love a display back Would be nice to have a COSC movement Final Score: 8.75/10 Value for Money: 8/10 Wearability: 9/10 Design: 10/10 Build Quality: 8/10 IWC is a watch brand that for me personally, I hadn’t really done a deep dive into before. I feel that it is a brand that if you know, you know, and once you get into the brand, many people are hooked. But when I joined Watch Advice, I began to delve deeper into the industry and watchmaking itself. To my surprise (and nobody else’s), I discovered that IWC had contributed much more to horology than I had ever cared to know before. This and the fact that the guys visited the Manufacture in Schaffhausen in April, and regaled me of their adventures there! The giant perpetual calendar movement on the wall in the entry of the IWC Manufacture in Schaffhausen which we visited earlier this year before Watches & Wonders 2024 Founded in 1868 by Bostonian watchmaker Florentine Ariosto Jones, the International Watch Company found its roots during Jones’ time in Schaffhausen, Switzerland. From there, they would combine American manufacturing with Swiss craftsmanship to produce high-quality timepiece...

New Avenger Chronographs from Breitling Pay Tribute to the United States Naval Academy Worn & Wound
Breitling Pay Tribute Jul 4, 2024

New Avenger Chronographs from Breitling Pay Tribute to the United States Naval Academy

Since the 1930s, the Breitling name has been synonymous with aviation, and its watches are the preferred choice for pilots worldwide, from commercial to military aviation. To commemorate its 140th anniversary of pioneering accomplishments, Breitling is introducing three new Avenger Chronographs paying tribute to the United States Naval Academy and three legendary test squadrons. Each edition showcases the squadron’s unique emblem and color scheme, reflecting its heritage and valor with striking design and uncompromising functionality. The Dust Devils VX-31, based in the desert landscape of China Lake, California, will feature assertive red and black colors. This squadron is at the forefront of U.S. naval test flying, pushing aviation to new frontiers. The Bloodhounds VX-30 are experimental test pilots of the highest order, stationed at Point Mugu, California. They push the limits of naval aviation to advance its capabilities. Their colors will be understated gray and yellow. Patriotic blue and yellow will be used for the United States Naval Academy in Annapolis, Maryland. It is America’s flagship institution for naval training. Established in 1845, it has consistently produced top-notch leaders for the global naval community. Powering this new series is the Breitling Manufacture Caliber 01. Known for its strength and complexity, this movement offers approximately 70 hours of power reserve, a five-year warranty, and the respected COSC certification. The display case bac...

The Tudor Black Bay Ceramic VCARB is Now Regular Production SJX Watches
Tudor Black Bay Ceramic VCARB Jul 4, 2024

The Tudor Black Bay Ceramic VCARB is Now Regular Production

Several months back, Tudor quietly released the Black Bay Ceramic Blue exclusively for the Visa Cash App RB (VCARB) Formula One team, with the dial colour modelled on the Visa logo. Today, the watch is available to the public (while the VCARB drivers will sport the more recent rainbow-dial “Chameleon” edition). Initial thoughts Tudor often listens to its audience, giving them what they want. Examples include the more compact Black Bay 58 GMT, and now the Black Bay Ceramic Blue. Intrinsically, the new Black Bay is technically and aesthetically perfect in its own way. It is the same Black Bay that has remained the brand’s bestseller since its launch, but in an unusual combination of black ceramic and blue. The brand has rolled out a number of special editions recently, which might dilute the concept somewhat. That said, this is the first instance of a publicly available Black Bay Ceramic special edition (unlike say the Black Bay 58), which makes it appealing. That said, the Black Bay Ceramic Blue is a great value proposition, as is usually the case for Tudor. It combines a ceramic case with an impressively spec’ed in-house movement that’s both METAS- and COSC-Certified, all for US$5,150, a price that few can rival. Visa Blue The highlight of the new Black Bay Ceramic is the matte blue dial (that’s arguably similar to the discontinued Rolex Submariner “Smurf” ref. 116619). It’s matched with applied hour markers and snowflake hands filled with white Super-Lum...

Oris Introduces What Might Be the Ideal Enthusiast Focused Divers Sixty-Five Worn & Wound
Oris Introduces What Might Be Jun 20, 2024

Oris Introduces What Might Be the Ideal Enthusiast Focused Divers Sixty-Five

The Divers Sixty-Five has been a staple in the Oris collection since 2015. In the near decade since its inception, we have seen many iterations. Many of these have been community-driven, and there have also been collaborative projects with multiple prominent media outlets and retailers. It would be an understatement to say that Oris has its finger on the pulse of the watch world, and their latest offering proves just that. New for 2024, they are introducing the Divers Sixty-Five 400 in 38mm. The great thing about being an independent watch manufacturer is the freedom to do what they believe is right. For some time, they have been asked to make a Divers Sixty-Five with the Calibre 400 movement, without a date display, in the enthusiast favorite 38mm size, and that’s exactly what this is. It is made of stainless steel and comes with a matching monochromatic unidirectional bezel with a minute scale in relief. Not only does the Calibre 400 offer 120 hours of power reserve, but it also comes with a class-leading 10-year warranty and 10-year service intervals. The watch is only available with the rivet-style stainless steel bracelet and features a vibrant green dial. It has a diameter of 38mm, a thickness of 12.6mm, and a lug width of 19mm. The watch is in-house regulated to be accurate to within -3/+5 seconds per day, which exceeds COSC tolerances. The movement is visible through the screw-down exhibition case back, and it is water-resistant up to 100m. This new model fulfill...

Serica Introduces the 6190 M.S.L, a New Generation of their Classic Field Watch Worn & Wound
Serica Introduces May 23, 2024

Serica Introduces the 6190 M.S.L, a New Generation of their Classic Field Watch

It’s hard to believe, but this year marks the fifth anniversary of Serica, one of our favorite small brands to emerge in the affordable, independent watch scene. In a relatively short period of time, Serica has developed a truly distinct design language that bridges the gap between vintage sports watches and casual elegance, often with just a hint of a military inspired aesthetic. They’re really quite unlike any other watch on the market, and yet they’ve always felt immediately familiar. Their newest release, the 6190 M.S.L Chronometer, isn’t exactly a watch made to celebrate the brand’s fifth year of existence, but it’s impossible to see it and not reflect on the path they’ve taken and growth they’ve experienced over the last half decade.  The new 6190 is an updated take on what many fans of the brand would surely say is Serica’s calling card, the simple, military inspired field watch. When the brand launched their very first field watch, it showed promise but was perhaps a little rough around the edges. In the ensuing years, everything about the brand’s output has been slowly and subtly tweaked, and the 6190 feels like a culmination of that constant improvement.  The specs, of course, are more robust than Serica’s watches of five years ago. This, in a lowkey, watch nerd way, is perhaps the most exciting recent development for the brand. Since last year, Serica has made a commitment that all of their watches will be certified as COSC chronometers. ...

Yema Slims Down the Navygraf in a New Limited Edition Worn & Wound
Yema May 13, 2024

Yema Slims Down the Navygraf in a New Limited Edition

A micro-rotor dive watch? For under $2,000? At first blush, the concept may seem outrageous. After all, micro-rotor movements are typically reserved for high-end dress watches and complicated Indies. They’re hardly at home in the sort of accessible dive watches so many of us like, but Yema has - for the second time this year - dropped a svelte micro-rotor-powered dive watch, and they certainly have my attention. Yema is not a new name in the watch space. The brand has been around in some form or another since 1948 and, since its return to French ownership in 2008, the brand has been working hard to build itself into a leading French watchmaker. While they are best known today for their vintage-inspired dive watches like the Superman, over the last few years, Yema has slowly been building up a quiver of French-made manufacture movements produced in France’s own version of the Vallée de Joux, the watchmaking hub of Morteau. To date, they have introduced three movements in this series of French-designed calibers, with more surely to come. Though still reliant on Switzerland for regulating organs and some movement parts (not a bad thing on any level, even Roger Smith uses Swiss-made mainsprings), these movements have been a big step for the brand, and are far from being simple ETA or Sellita clones, like we so often see. The first of these was the CMM.20, a slim 3.7mm ultra-thin micro-rotor movement, with near-COSC accuracy, an anti-magnetic construction, a 70-hour po...

Just Because – The Battle for the World’s Thinnest Watches (incl. Video) Monochrome
Bulgari s Octo Finissimo Ultra Apr 16, 2024

Just Because – The Battle for the World’s Thinnest Watches (incl. Video)

Some of the standout highlights of the 2024 Watch Week in Geneva undoubtedly revolved around ultra-thin watches. Bulgari’s Octo Finissimo Ultra COSC now reigns as the world’s thinnest mechanical wristwatch, boasting an astonishing 1.70mm profile. Meanwhile, Piaget clinched the record for the thinnest tourbillon ever with its Altiplano Ultimate Concept Tourbillon, measuring a mere 2mm! […]

Norqain Doubles Down on Its Wild One Collection with New Colorways and an Innovative Platform Where You Can Create a Custom Model Worn & Wound
Norqain Doubles Down Apr 12, 2024

Norqain Doubles Down on Its Wild One Collection with New Colorways and an Innovative Platform Where You Can Create a Custom Model

When it comes to ones to watch, Norqain definitely makes the list. In the past year in particular, its momentum seems to be steadily growing. Right now, the brand is notching its first Watches & Wonders, and just ahead of the show, seasoned collector Mark Wahlberg was spotted rocking the Wild One Skeleton all around town-I’d say this gives Norqain some serious street cred. Last week, the brand also shared some pretty exciting news: three-time Grand Slam-winning tennis champion Stan Wawrinka is now an invested partner in the company, and he inspired two new versions of the popular Wild One Skeleton. In addition, Norqain has doubled down on the collection, unveiling a totally new platform where you can create your very own piece unique Wild One.  You’ll recall when Norqain’s Wild One got the skeleton treatment last year. The new configuration offered the benefit of a reimagined dial revealing the COSC-certified Caliber N08S (Sellita SW200-1 S c) movement but still fell a bit short in terms of legibility. Still, the model delivered on performance thanks to the brand’s proprietary, ultra-lightweight, rigid, and durable carbon fiber derived NORTEQ material that makes up a large portion of the case body and can withstand shocks up to 5,000g. This feature was a major draw for Wawrinka, who put the turquoise variation to the test on the court at the U.S. Open last year and now brings us two new colorways fit for the upcoming Grand Slam season: a bright coral iteration f...

First Look – The New Brellum Duobox Triple Calendar Moophase LE Chronometer Monochrome
Apr 5, 2024

First Look – The New Brellum Duobox Triple Calendar Moophase LE Chronometer

Established in 2016 by Sébastien Muller, a fourth-generation watchmaker, Brellum is an independent brand that employs a direct distribution model and offers exclusivity with only a few hundred pieces crafted each year, all COSC-certified chronometers. The Duobox, the brand’s inaugural collection, captured the hearts of enthusiasts with its timeless looks and competitive pricing, with several […]

Christopher Ward C63 Valour: Their Latest MoD-Approved Timepiece Two Broke Watch Snobs
Christopher Ward C63 Valour Their Latest Apr 2, 2024

Christopher Ward C63 Valour: Their Latest MoD-Approved Timepiece

The C63 Valour is accurate to +/- 10 seconds a year with its ETA G10.212 AD COSC movement. It has been tested rigorously over 13 days and at 3 different temperatures and 4 separate humidity levels to ensure its thermal compensation abilities and consistency. On top of that, the movement neatly displays running seconds at 6 o’clock, a 30-minute register at 10 o’clock, and a 1/10th seconds counter at 2 o’clock.

First Look – The New Tissot PR516 Chronograph Mechanical (Incl. Video) Monochrome
Tissot PR516 Chronograph Mechanical Incl Feb 22, 2024

First Look – The New Tissot PR516 Chronograph Mechanical (Incl. Video)

Drawing from over 170 years of watchmaking heritage, Tissot frequently delves into its archives for inspiration. The company has a penchant for reviving iconic models that have left an indelible mark on its history. Consider any timepiece from the Heritage series – the 1973 Chronograph, the 1938 Heritage COSC, the Visodate, or the 1938 Telemeter […]