Watch brandsWatch wikiWatch videosVariousWatch calendarSaved articles
PopularRolexOmegaPatek PhilippeAudemars PiguetTudorGrand SeikoCartierSeikoIWCTAG HeuerBreitlingJaeger-LeCoultreA. Lange & SohneZenith

Results for Chronometer (COSC)

683 articles · 126 videos found · page 18 of 27

Related pages

Wiki · Guide
Chronometer (COSC)

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

Why I Bought It: The Zenith Chronomaster Tribute to Charles Vermot – Reprise Quill & Pad
Zenith Chronomaster Tribute Jan 13, 2024

Why I Bought It: The Zenith Chronomaster Tribute to Charles Vermot – Reprise

Quentin R. Bufogle could go on and on about the Zenith Chronomaster Tribute to Charles Vermot’s stunningly beautiful, metallic blue dial, silicon escapement (visible via the open heart feature), COSC chronometer certification and that it’s one of the last truly great Chronomasters, but that would be missing the point, i.e. how Charles Vermot saved Zenith.

Omega ousts Rolex with brand new technology that promises 0/+2 second accuracy a day Time+Tide
Omega ousts Rolex Jan 26, 2023

Omega ousts Rolex with brand new technology that promises 0/+2 second accuracy a day

New Spirate™ System debuts new hairspring with ultra-fine 0/+2 regulation capability. The system debuts in new Speedmaster Super Racing watch. Its usage beyond the Super Racing is planned, but consumers will need to wait for new calibres – not just new watches. COSC, METAS, Superlative, and more. There are various chronometer certifications within the industry today, with each, … ContinuedThe post Omega ousts Rolex with brand new technology that promises 0/+2 second accuracy a day appeared first on Time+Tide Watches.

Earth just broke the record for the shortest recorded day in modern history. What does this mean? Time+Tide
Aug 9, 2022

Earth just broke the record for the shortest recorded day in modern history. What does this mean?

Watch lovers are obsessed with accurate timekeeping, and brands always look to standout with various certifications – whether COSC, METAS or Superlative Chronometer standards among others. Every time I set my watch, I always sync it – to the second – to my Watchville app clock, which effectively displays my iPhone’s highly synchronised time based … ContinuedThe post Earth just broke the record for the shortest recorded day in modern history. What does this mean? appeared first on Time+Tide Watches.

Swatch Introduces the Big Bold Jelly SJX Watches
Swatch Dec 27, 2019

Swatch Introduces the Big Bold Jelly

One of the iconic Swatch watches from its 1980s heyday was the Jelly Fish (ref. GZ010), which was unveiled in 1983, the same year Swatch itself was launched. A quartz movement entirely exposed in a clear plastic case – accented with brightly coloured hands – the Jelly Fish was a bestseller that encapsulated what Swatch was all about: no-frills but fun watchmaking. The Jelly Fish remained in production, in one form or another – there was even a COSC-certified chronometer limited edition (GK124) in 1990 – for over two decades. Now the spirit of the Jelly Fish returns as the Big Bold Jelly, essentially the same idea but in a larger watch case. The Big Bold Jelly features a quartz movement inside a Big Bold case, just like the recent limited editions created in collaboration with fashion label A Bathing Ape (BAPE). The case is a large 47mm in diameter, with the crown unusually positioned at two o’clock. But just as with the original Jelly Fish, the case is clear plastic, while the band is translucent silicone. And the hands are rendered in bright colours – red, yellow and blue – with a bit more colour provided by the gilded wheels within the movement. Key facts and price Big Bold Jelly Ref. SO27E100 Diameter: 47mm Height: 11.75mm Material: Clear plastic Water resistance: 30m Movement: Quartz Functions: Hours, minutes, and seconds Strap: Silicone with aluminium pin buckle Availability: At Swatch stores Price: US$110 For more information, visit Swatch.co...

Testing A Master: Omega And Swiss Federal Institute Of Metrology Announce New Certification Process Revolution
Omega Dec 11, 2014

Testing A Master: Omega And Swiss Federal Institute Of Metrology Announce New Certification Process

A Swiss watch is great, but a Swiss Chronometer is even better; for many customers there is added appeal in a COSC-certified watch. No surprise that some of the largest Manufactures in Switzerland, also have incorporated the Chronometer certification for the majority of their collections. Omega thought it was time to step up the certification […]

Introducing: The Three-Watch-Strong Lebois & Co Heritage Small Seconds Collection Fratello
Oct 30, 2025

Introducing: The Three-Watch-Strong Lebois & Co Heritage Small Seconds Collection

After a series of chronographs, the Dutch-based brand Lebois & Co returns with a trio of three-handers. Please welcome the Heritage Small Seconds collection. The silver Script, blue Baton, and black Numeral Founder’s Launch editions are COSC-certified chronometers with perks for early adopters. A “Chronomètre Lebois & Co” sweater inspired by Parisian streetwear is waiting […] Visit Introducing: The Three-Watch-Strong Lebois & Co Heritage Small Seconds Collection to read the full article.

Behind the DIN 8330 Standard for Pilot’s Watches Worn & Wound
Sinn lead Oct 3, 2025

Behind the DIN 8330 Standard for Pilot’s Watches

Standards and certifications in watchmaking were primarily developed for chronometry, as well as to reassure the buyer that their watch had been thoroughly tested to a certain level of accuracy. The standards we see most often in the technical specifications are COSC, METAS, and other company or regional chronometry certifications. In modern watchmaking, other key standards like the ISO 6425 dive watch standard, which was developed in the 1990s and followed by watch companies, also come into play. These standards were largely based on various military set standards for watches; however, since each military set their own requirements, there was not one universally followed standard. The International Organization for Standardization (ISO) published specific requirements and testing procedures for a watch to be officially designated a “Diver’s watch”. While there is no ISO standard for pilot’s watches, there are specific requirements set by militaries around the world. One of the most well-known standards is from the WWII German pilot’s watch known as the “Beobachtungsuhren” or “B-Uhren.” B-Uhren pilot’s watch standards are well documented and are still followed by many watch companies to this day. In March 2012, Sinn lead an initiative in collaboration with the Faculty of Aerospace Technology at the Aachen University of Applied Sciences to create TESTAF – Technical Standard for Pilot Watches. TESTAF was developed so that a pilot’s watch meets all mod...

Total Cost Of Ownership - What Does Your Watch Collection Cost In The Long Run? Fratello
Jan 18, 2025

Total Cost Of Ownership - What Does Your Watch Collection Cost In The Long Run?

Watch collecting is a costly hobby. We spend inordinate sums of money to acquire these objects of our shared affection. Maybe you have to save up for your next watch. Perhaps you allow yourself to splurge for significant life events. We all have our methods and justifications. However, the expenses do not stop after acquiring […] Visit Total Cost Of Ownership - What Does Your Watch Collection Cost In The Long Run? to read the full article.

Worth the Cost: Smythson Notebooks Worn & Wound
Oct 2, 2024

Worth the Cost: Smythson Notebooks

With the new school year in full swing, I’ve been reminded by my nephews and nieces just how much fun buying school supplies can be. I’m sure there is a direct correlation between my love of buying random notebooks before the school year began and my current job in the luxury pen industry (even though the line is a bit jagged, by way of dropping out of law school, working as a timeshare salesman, and a food blogger for a few years).  But the collateral damage of my occupation has meant that I have a bit more of a discerning – read: judgmental – eye about stationery. Sure, I’m not going to tell my seven-year-old nephew that his composition notebook is the worst type of paper for fountain pens and is prone to tearing and bleeding…but I am thinking it. You see, it’s hard to appreciate these annual, almost Proustian moments this time of year now that I’ve been exposed to higher quality journals over the past few years. If there is anyone to blame, it would be Smythson for this chip I have on my shoulder. The British company, who has been making luxury stationery since 1887, is by all accounts a brand that puts craftsmanship, heritage, and aesthetics into every product – and once you’ve had the best, it’s hard to go back. History of Smythson With London heritage evident in nearly every aspect of Smythson – from their branding to products to cheeky little sayings on notebooks – it’s evident how steeped the brand has been in British culture since its ...