Results for Chronometer (COSC)

New Omega Seamaster Aqua Terra Now Master Chronometer Certified

Launched at Baselworld 2017, the new Omega Seamaster Aqua Terra now comes with some styling upgrades as well as new Master Chronometer calibres.

Review: Arnold & Son Tourbillon Chronometer No. 36

We reviewed the new Arnold & Son Tourbillon Chronometer No. 36, a tribute of the legendary Arnold 36. Full hands on and live images.

Review: Omega Speedmaster Racing Co-axial Master Chronometer

Hands on review of the Omega Speedmaster Racing Co-axial Master Chronometer, with historical references, specs and price.

ADVENT CALENDAR 2016: December 16 – Omega Speedmaster Moonphase Chronograph Master Chronometer

In terms surprises, at Christmas or at any other time, Omega releasing a new Speedmaster does not rank (sorry Omegamaniacs). In the last few years we’ve seen Speedies offered in every colour and design under the sun. That said, their latest, the in-no-way-economically named Speedmaster Moonphase Chronograph Master Chronometer is, in fact, pretty eye-opening, mouth-watering and wallet-tempting. It’s hot, … ContinuedThe post ADVENT CALENDAR 2016: December 16 – Omega Speedmaster Moonphase Chronograph Master Chronometer appeared first on Time+Tide Watches.

The Collector’s View: Brand Primacy: Birth of the Omega Master Chronometer standard

We explore the Co-Axial escapement and how it proved Omega's primacy in history, by examing the Omega Master Chronometer and the METAS certification.

Pre Baselworld 2016: Glashütte Original Senator Chronometer

Introducing the new Glashütte Original Senator Chronometer with eye catching blue lacquered dial for Baselworld 2016.

Only Watch 2015: Thomas Mercer Table Chronometer, The Brittanica

The first table clock offering for Only Watch 2015, the Thomas Mercer Table Chronometer, The Brittanica

Pre- SIHH 2015: Ralph Lauren Introduces 39mm Sporting Classic Chronometer

Ralph Lauren’s watch collection will, we hear, introduce a significant number of new models this year, and as an introduction we’ve been vouchsafed a first look at a 39mm edition of the Sporting collection’s Classic Chronometer.  This is, as they say, exactly what it says on the tin: a 39mm version of the Sporting Collection’s […]

Hands-On: The GPHG Chonometry Prize-Winning Lederer Three-Times Certified Observatory Chronometer

More than a flex of chronometry, it's also the most cohesive Lederer release yet.

Zenith x Kari Voutilainen x Phillips Calibre 135 Observatoire: 10 of the World’s Highest Precision, Competition-Winning Chronometer Movements Ready for the Wrist – Reprise

After seven decades carefully stored away in the Zenith archives, ten of the original chronometry competition-winning movements find their way into a limited set of new watches thanks to Phillips, legendary independent watchmaker Kari Voutilainen, and Zenith's current management.

Insight: Daniels’ Co-Axial Escapement, an Evolution of the Fasoldt Chronometer

In the quest for precision chronometry in a mechanical watch, perhaps no other component is as crucial as the escapement – often consisting of an escape wheel and lever that engage with the oscillating organ. The history of watchmaking recounts many an attempt at inventing a better-performing escapement, with some attempts naturally more successful than others. By the 20th century, the watch industry had settled upon the Swiss lever escapement, which has proven itself to be a reasonably solid performer and crucially, one fit for mass production. However, in the latter decades of the century, one English watchmaker attempted to challenge the industry status quo. In 1974, George Daniels invented the “co-axial escapement”, a seemingly novel and practical escapement of his own design that was conceived as an functionally superior alternative to the Swiss lever escapement. Daniels’ invention fulfilled his ambition, at least in part, when it was sold to Omega and then successfully industrialised starting in 1999; today it is found in hundreds of thousands of movements that Omega produces each year. The latest iteration of the Omega Speedmaster Moonwatch is kitted out with the co-axial escapement With the merits of the co-axial escapement having been proven in part by its large-scale adoption, my aim here is not to examine its intrinsic qualities, but rather delve into its development. Specifically I will explore the fact that the co-axial escapement might not be an ent...

At the Heart of the Bernhard Lederer Central Impulse Chronometer

An intellectually exciting and enormously engaging exercise in the pursuit of perfect chronometry.

A look back at the Longines Heritage Military COSD

Editor’s note: As evidenced by the release of the popular Heritage Military watch, Longines have a long history in manufacturing reliable tool watches for the world’s armed forces. One that is sometimes overlooked today, but got people talking when it was first released, is the Longines Heritage Military COSD. A considered nod to the watches … ContinuedThe post A look back at the Longines Heritage Military COSD appeared first on Time+Tide Watches.

ADVENT CALENDAR 2016: December 2 – The Longines Military COSD

Next up in our Christmas Advent(ure) Calendar is the rough and ready (but still polished to a mirror shine) Longines Military COSD, with a military-inspired dial and summer-appropriate NATO strap. The best thing about it though? It’s not so hardcore as to look out of place with a suit. If you really love this one, check … ContinuedThe post ADVENT CALENDAR 2016: December 2 – The Longines Military COSD appeared first on Time+Tide Watches.

Longines Heritage Military COSD

We present another novelty from Baselworld 2016, this time round from Longines: the Longines Heritage Military COSD. 

Hands On: Victor Kullberg Tourbillon Pocket Chronometer

Phillips’s upcoming sale The Geneva Watch Auction: XXIII is packed with spectacular watches, including some already well known to collectors like the extra complicated La Royale by Louis Audemars, an unsual Patek Philippe worldtime ref. 2523, and the Golay Fils & Stahl astronomical watch. But among the finest is a simple watch that tracks only the time and state of wind, yet is comprised of several hundred parts: Victor Kullberg No 6583. Behind those three hands is a one-minute tourbillon equipped with an Earnshaw detent escapement, a massive free-sprung compensation balance, anti-magnetic helical balance spring and reverse chain and fusee, making it one of the most elaborate three-hand watches imaginable. Even at its high estimate of US$102,000, this pocket chronometer amounts to something of a steal, especially in an auction where multiple steel sports watches carry much greater estimates. The cult of the chronometer Swiss and English horologists disagreed on a great many things, from the ideal shape and material of escape wheels to the definition of a chronometer. To the Swiss, the title of chronometer was bestowed based on merit as a timekeeper. Any watch could be one if it kept good time, especially with a trusted, independent attestation of its accuracy. Watches submitted to observatory trials — or tested according to the ISO 3159:2009 standard today — are chronometers by this reckoning. England was dominated by the cult of the [marine] chronometer, unsurprisin...

Chopard at Watches & Wonders 2026: L.U.C 1860 Chronometer with Karl-Fritz Scheufele

Omega’s New Constellation Observatory Collection Debuts, with a First for a Certified Chronometer

Omega pleased a lot of dress watch and vintage fans this week when they launched the new Constellation Observatory collection at their Swiss headquarters. Zach Weiss is on the ground in Bielle even as we speak getting hands-on with the new watches, and he’ll have a full hands on report with his own photography coming soon. For now, a quick rundown of the new collection, and why it’s a fairly major play for the brand.  The Constellation is a historic Omega collection that has changed a lot through the years, always remaining flexible with the current styles and trends of the day. This collection, though, is a direct shot at the hearts and minds of Omega purists, as its effectively a recreation of the original 1950s Constellation in its broad strokes. The cases and dials will be familiar to anyone who has collected or admired original Constellations, with highly angular cases and distinctive dogleg lug design.  That said, these are not one to one recreations of watches from the 1950s. The cases, on paper at least, are rather large for what most would agree is a riff on a classic dress watch. The diameter is 39.4mm, and case height is 12.23mm. The lug to lug span comes in at 47.2mm. So, not small by any means, but we’ll look forward to Zach’s impressions of how they actually wear soon enough.  As is typical with Omega these days, we have a wide variety of case material and dial options available. We get all three gold alloys that Omega likes to deploy (Sedna, Canop...

Introducing: The New Omega Constellation Observatory Collection, The First Two-Hand Design To Achieve Master Chronometer Certification

Omega's mid-century design language is back in nine new references, across stainless steel and precious metals.

First Look – COSC x Ceramic x Meteorite… Meet the Formex Essence Ceramica Dark Matter

Celebrating its 25th anniversary, Formex continues to excite while exploring materials and mechanical substance with the new Essence Ceramica Dark Matter, a watch that fuses the brand’s most advanced ceramic construction with a dial cut from the depths of space itself. Following the Essence Space Ghost and the full-ceramic Essence Ceramica, this latest creation unites […]

First Look – Titoni Lightly Updates its Robust Dive Watch, The Seascoper 600 COSC

An independent, family-owned Swiss brand, Titoni was founded in 1919 by Fritz Schluep in Grenchen, Switzerland and is now managed by the third generation of its founding family. Known for its robust, fully-equipped yet accessible watches, the brand impressed us about 5 years ago with the launch of the Seascoper 600, a dive watch with […]

An Awesome Everyday Watch That Should Be On Your Radar - COSC Certifie

Teddy Baldassarre is an authorized luxury watch retailer of brands like TUDOR, OMEGA, IWC, Grand Seiko, Breitling, Blancpain, Glashütte Original, Zenith, Longines, ORIS, MIDO, Tissot, Hamilton, NOMOS Glashütte, Baume & Mercier, and more.

The Most Attainable Swiss Chronometer In 2023 - Tissot Heritage 1938 C

Teddy Baldassarre is an authorized luxury watch retailer of brands like TUDOR, OMEGA, IWC, Grand Seiko, Breitling, Blancpain, Glashütte Original, Zenith, Longines, ORIS, MIDO, Tissot, Hamilton, NOMOS Glashütte, Baume & Mercier, and more.

Introducing – Omega Launches The Seamaster Aqua Terra 30mm Collection with New Master Chronometer Movements

Omega releases a new sub-collection of its Seamaster Aqua Terra in 30mm cases with metal bracelets spread across 12 references. A classic all-rounder, the 30mm Aqua Terra models are powered by two new in-house automatic movements. Designed to fit the smaller case size, calibre 8750 and 8751 are the smallest and slimmest co-axial Master Chronometers […]

Introducing: The Omega Aqua Terra 30mm, With Two New Master Chronometer Movements

A small-but-mighty addition to the Aqua Terra lineup.