Results for Caliber 321

GONE IN 60 SECONDS: The most complicated wristwatch ever made – the Franck Muller Aeternitas Mega video review

[su_vimeo url=”https://vimeo.com/154855593″] Franck Muller has the rather grandiloquent sobriquet of ‘The Master of Complications’ – and this watch is the reason why. Superseding Patek Philippe’s Calibre 89 for the most complicated title when it was released in 2010, the Aeternitas Mega features a staggering 36 complications, 21 hands and a movement with no fewer than 1483 parts. More impressive … ContinuedThe post GONE IN 60 SECONDS: The most complicated wristwatch ever made – the Franck Muller Aeternitas Mega video review appeared first on Time+Tide Watches.

Grand Seiko Introduces the Caliber 9S 25th Anniversary SBGH311 and SBGR325

When Grand Seiko (GS) made its return in 1998, the inaugural SBGR001 model was powered by the 9S55, the first modern-day GS calibre. Now the brand is marking the 25th anniversary of the 9S movement family with a pair of limited editions. The Heritage Collection Caliber 9S 25th Anniversary Hi-Beat 36000 SBGH311 and the Heritage Collection Caliber 9S 25th Anniversary SBGR325. The Hi-Beat SBGH311 has a patterned dial, while the more affordable SBGR325 has a dial with a brushed finish. Both are modelled on the original model of 1998 and sport the same 37 mm case. SBGH311 (left) and SBGR325 Initial thoughts With their 37 mm cases and clean styling, the new 9S pair hark back to the GS watches made from the late 1990s to mid 2000s. That is unsurprising since they are meant to commemorate the first model with the 9S movement, which made its debut in 1998. The Hi-Beat SBGH311 does have a fancier pattern dial, but one that is relatively subtle in its shades-of-grey texture. As a result, they will appeal to anyone who wants a smaller, simpler GS watch. Another upside of the relatively simpler execution are the prices, which place the pair amongst the most affordable self-winding GS watches. The SBGH311 is US$6,600 and the SBGR325 about 20% less. SBGR325 Old-school size The SBGH311 has a textured dial in silvery grey inspired by clouds that’s matched with a blued-steel seconds hand. And the “GS” emblem is gilded in a nod to the fact that this is an anniversary edition. Not...

Watches & Wonders: Roger Dubuis Debuts an All-New Perpetual Calendar Caliber Alongside a Sporty Version of its Excalibur Biretrograde Calendar

Roger Dubuis’ latest releases at Watches and Wonders are steeped in the brand’s history. For the occasion, the maison introduces two complicated pieces – a perpetual calendar and day-date calendar – each in the brand’s patented biretrograde display. Prior to founding his namesake maison, Mr. Roger Dubuis was a prolific watchmaker for several brands, from Patek Philippe to Longines. One such project came in 1989 when he and fellow watchmaker Jean-Marc Wiederrecht collaboratively pioneered and patented their famous biretrograde display, which reworked the traditional concept and made it more streamlined. This approach eased assembly and improved the stability and readability of the hands on the ecliptic retrograde counters. Soon after, the pair engineered a double retrograde perpetual calendar module, which was notably used in a timepiece for Harry Winston. A year after the brand’s official founding, Roger Dubuis introduced its own biretrograde display timepiece and later the perpetual calendar complication in its iconic Sympathie and Homage collections. Today, we see the next evolution of these concepts highlighted in a rather modestly sized 40mm version of its Excalibur line. The Excalibur Biretrograde Perpetual Calendar is notably powered by an entirely new movement: the RD850. Here, the maison builds upon the work set forth four decades ago with a self-winding caliber built from 435 components in-house at Roger Dubuis’ Geneva manufacture. A key functional i...

Watches & Wonders: the A. Lange & Söhne Saxonia Annual Calendar Returns with a New Case Size and Caliber

A. Lange & Söhne had one of my, and many others’, favorite releases at Watches & Wonders 2025. It wasn’t a super complication and had no bells-and-whistles. Rather, it was simple and small. The 34mm 1815 three-handers in white or rose gold exemplified confident, understated luxury like no other watches at the fair. For 2026, Lange has brought back a watch that had been out of production with a new movement and in a new, smaller size, following suit from last year’s release. Unlike the 1815s, these feature one of the less common complications in the Lange catalog: the annual calendar. The Saxonia Annual Calendar was a very cool watch. It combined its eponymous complication with Lange’s signature outsized date and was powered by a since-retired “Sax-0-Mat” three-quarter-rotor automatic movement. These funky movements were featured in the Langematik watches and represented Lange’s first foray into automatic calibers. In addition to a distinctive look, they featured a hidden complication: zero-reset seconds, meaning that when the crown was pulled out, the seconds hand would jump to zero. In 2011, the Sax-O-Mats began to be replaced by central rotor calibers with up to 72 hours of power reserve, an increase from 46 hours, but the zero-reset seconds disappeared. Though comprising many different calibers, most of Lange’s currently in-production automatics have a central rotor. I am unsure when the previous generation of the Saxonia Annual Calendar went out of pro...

Introducing: The IWC Big Pilot’s Watch Perpetual Calendar ProSet Introduces A New Smaller, Reversible Perpetual Calendar Caliber (Live Pics)

Building off of Kurt Klaus' original design, this new generation movement allows crown adjustment of the calendar both forwards and in reverse.

Hands-On: the Wolbrook JetFlyer and the New Jeambrun PS6402 Automatic Chronograph Caliber

I’d like to think I am a bit of a movement nerd. Not in the sense of knowing all of the technical attributes (actually, I wish I knew more there), but rather about what movements are on the market from the major suppliers. Hand me a watch, even with a complication, and I can probably tell you what movement it has in a matter of seconds (assuming it’s mechanical) by the positioning of the hands, complications, rotor bearing, etc. So, last fall, when I was handed a prototype of a new chronograph by Wolbrook and, upon seeing the dial, realized I had no idea what movement it had, my interest was piqued. The watch was the Wolbrook Jetflyer, which I have since had the opportunity to spend more time with. An extension of the French brand’s proven line of tool dive watches based on vintage models, the Jetflyer is their first foray into mechanical chronographs. As the name suggests, the Jetflyer is not meant as a “dive” chronograph, but rather as a pilot’s, though that’s largely semantics, as there are a lot of overlaps in design language (and the WR is 100m). I’ll get back to the particulars of the design, because what really stands out is the movement. $845 Hands-On: the Wolbrook JetFlyer and the New Jeambrun PS6402 Automatic Chronograph Caliber Case Stainless Steel Movement Jeambrun PS 6402 Dial Mattte Black Lume X1 Super-Luminova Lens Domed Sapphire Strap Leather or Bracelet Water Resistance 100m Dimensions 38 x 46mm Thickness 14.3mm Lug Width 20mm Crown Screw-d...

Introducing: The 38mm Audemars Piguet Royal Oak Chronograph Gets An In-House Caliber

Smaller-wristed fans of in-house calibers, rejoice!

Hands-On: The Czapek Time Jumper With A New Caliber To Celebrate A Ten Year Anniversary

The Time Jumper is Czapek's first jump-hour watch and features a half-hunter case, a nod to the brand's pocket-watch legacy, in both gold and steel.

Breitling’s New 40mm Dive Watch With An Updated Caliber - Superocean H

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.

Grand Seiko Adds a New Dress Watch with the 9SA4 Caliber to the Collection, Plus a New Tentagraph

Almost as soon as Grand Seiko released the SLGW002 and SLGW003 at Watches & Wonders 2024, we started to wonder what this new class of manually wound dress watch from one of our favorite brands might look like in different variants. This seemed like a natural platform for expansion, and we figured it was just a matter of time before we saw some alternative dial options and new metals. In the year and a half or so since Grand Seiko introduced these watches, and the 9SA4 caliber powering them, things have been quiet on the manually wound dress watch front. That is, until this week, when we finally got a peek at the new SLGW007, Grand Seiko’s first new launch with this case and movement since the big debut at Watches & Wonders last year.  While the most obvious update on the surface here is certainly the new dark blue dial, it’s actually the case itself that really has my interest. The SLGW003, you’ll recall, was crafted from Grand Seiko’s Brilliant Hard Titanium. This is a very cool material, for sure, but has a niche appeal in a classically styled dress watch like this thanks to its ultra light weight and the associations we all have with titanium and tool watches. The SLGW007 is in stainless steel, and I’m incredibly curious to see how this might change the character of the watch on the wrist. One would certainly expect it to be a bit heavier, but I imagine the finishing will also have a slightly different, perhaps more traditional look to it, at least in the con...

Trilobe Opens Parisian Manufacture And Debuts In-House Caliber In Trente-Deux Collection

Oris Just Dropped A Brand New Caliber And A Bamford Collab

Richard Mille Introduces New Sapphire Cases Specially Designed For Caliber RM75-01

Introducing: The Rolex Land-Dweller, Featuring Caliber 7135 - Rolex’s Most Important New Model In Decades

A major leap forward in movement technology, featuring a new indirect impulse escapement and high frequency movement that confirms the Crown's industrial manufacturing prowess.

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...

Horage Debuts the K3, an All New Antimagnetic Caliber, and the Decaflux, an Affordable Everyday Sports Watch

The independent brand Horage has produced some of the most genuinely interesting watches of the last several years. They’re a bit of a tough brand to pin down. Depending on how you discover them, you could mistake them for a brand obsessed with links between watches and photography, or one of a handful of small indies doing interesting things with tourbillons and other watchmaking tech for quite a bit less money than you’d typically expect. But the thing that links all of their products together is a desire to come up with creative solutions to long standing watchmaking problems and to do so in a way that doesn’t leave anyone out of the experience. Accessibility and approachability are as vital to Horage as their love-it-or-hate-it design language, often embracing an ultra contemporary sensibility.  Two new announcements from Horage over the last week or so perfectly illustrate their commitment to quietly pushing horological boundaries. First came the introduction of their new K3 movement. Over the last several years, most of Horage’s big movement developments have come with some high end features and represent big swings for the brand. The tourbillon, of course, is arguably the centerpiece, but they’ve also introduced a micro-rotor caliber as well as a fascinating tool that allows for the periodic electronic regulating of that very movement. But the K3 is a comparatively simple idea, a high quality movement made from advanced materials at a relatively low cost....

Ming’s Latest Release Presents An Updated Look To The Frederic Piguet Caliber 21

Introducing: The New Audemars Piguet Perpetual Calendar Caliber 7138 Collection [Live Pics & Pricing]

AP ditches the pushers and the stylus with a brand new perpetual calendar movement.

Bring a Loupe: A Philippe Dufour Duality, A Zenith Caliber 135 Chronometer, And An Odd 1920s Cartier

All that and more in this week's edition of Hodinkee's What's Selling Where column.

Celebrating 20 years of the iconic Spring Drive Caliber 9R with the SBGA499

Norqain Launches the Independence Skeleton Chrono with the New 8K Flyback Caliber

Norqain has just unveiled what is certainly their biggest release of the year, and quite possibly their most ambitious release since the debut of the Wild One two years ago. The new Independence Skeleton Chronograph expands on the design language we saw take shape with the Wild One, and introduces a new, skeletonized, flyback chronograph mechanism. The new watch is conceived as something of a statement piece, meant to highlight what the brand thinks of as their independent spirit, and launches in two variants that illustrate where a full collection of watches powered by this new caliber could potentially go.  The movement at the center of this release has been dubbed the 8K Manufacture Calibre, and features flyback functionality, a tool that was first developed for chronographs used by pilots to time flight related intervals. Flyback functionality allows a running chronograph to be reset to zero instantaneously without first stopping it, so it’s a useful tool for anyone that needs to time multiple intervals in rapid succession (it has gained wide adoption in sporting contexts through the decades). The execution of this particular movement appears to have all of the hallmarks of a solid, modern chronograph movement, including a power reserve stretching to 62 hours, as well as a column wheel. The 8K caliber is also chronometer certified.  It’s also worth noting that the 8K movement was developed in partnership with Manufacture AMT, a division of Sellita known for creat...

The Grand Seiko 45GS Returns with the New Hand-Wound Hi-Beat Caliber 9SA4

Introducing: Grand Seiko Caliber 9R 20th Anniversary Limited Editions (Live Pics)

Don't worry, in this case it's okay to be seeing red.

Photo Report: Assembling Caliber 9SA4 at the Grand Seiko Boutique

I’ve always had a fascination for peeking behind the curtain. Whether it was tearing apart broken electronics, rebuilding car engines, or opening the caseback of my first Seiko, I’ve always wanted to see and know how things work. As I’ve gone deeper into the horology rabbit hole, I’ve become more interested in the physical process of assembling a movement. While I can watch any number of YouTube videos, there’s something special about seeing it done in person, especially when you get to watch a Grand Seiko Watchmaker at work. Last week, I was invited to Grand Seiko’s boutique for a live assembly of their new 9SA4 movement, a high-beat, manually wound high frequency movement featuring Grand Seiko’s proprietary dual impulse escapement and 80 hours of power reserve. If you’d like to learn more about the 9SA4 and how it was created from the 9SA5, Zach Kazan covers that in detail here. This event was hosted at Grand Seiko’s Madison Avenue boutique (we celebrated the grand opening of this boutique in March, click here for the recap article) which features a gorgeous open concept main level, and an intimate lower level they’ve dubbed “The Cellar”. Unlike any cellar I’ve ever been in, this lower level features multiple lounge spaces, a full bar, a dedicated presentation space and, of course, plenty of watches. You’ll also find various items of cultural significance from the towns surrounding the Grand Seiko Studio Shizukuishi, which inspire the design o...

Yema Introduces a New Skin Diver with their Micro Rotor Caliber

French watchmaker Henry-Louis Belmont established Yema in 1948 and quickly became known for manufacturing ultra-capable tool watches. By 1954 their production reached 130,000 watches and by the mid 1960s they were selling over 400,000 watches annually in 55 countries. Their motto “Time of Heroes” became their official slogan, and their watches were particularly suitable for diving, car racing, and military expeditions. Today, Yema is experiencing a resurgence and is introducing a new modern interpretation of their iconic Skin Diver. The Skin Diver Slim CMM.20 is not just another pretty face. Beneath the beautiful dark grey dial beats their in-house Calibre Manufacture Morteau 20 movement (CMM.20). It is rated for accuracy at -3/+7 seconds a day, has a power reserve of 70 hours, and is extra slim due to its micro-rotor. The watch measures 39mm in diameter, 47mm from lug-to-lug, and only 10mm tall to the top of the double-domed sapphire crystal. Despite being relatively thin, it is water-resistant to an impressive depth of 300 meters. Adding to its vintage styling is a dark grey, faded bezel insert covered by sapphire glass. Its lume pip, along with all the lume on the dial and markers, has that aged radium look, which complements the design very well. The watch comes mounted on a new slimmer Yema Scales bracelet, which integrates better with the Skin Diver’s slimmer profile. The screw-down case back offers a transparent view of the movement, featuring a black ALD (ato...