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Oyster Case

Rolex's 1926 waterproof case patent, the template for every water-resistant wristwatch.

Modifying Your Vintage Watch With A Sapphire Case Back Fratello
Seiko ref 45-7001 45KS Now May 6, 2025

Modifying Your Vintage Watch With A Sapphire Case Back

It will come as no surprise to our regular readers that I love vintage watches. Some of you may remember that I recently purchased a vintage King Seiko ref. 45-7001 45KS. Now, some months into owning that vintage King Seiko, I have decided to modify it with a sapphire case back. After some research, I […] Visit Modifying Your Vintage Watch With A Sapphire Case Back to read the full article.

Hands On: Patek Philippe’s Celestial Goes to Space SJX Watches
Patek Philippe s Celestial Goes 2 days ago

Hands On: Patek Philippe’s Celestial Goes to Space

Perhaps the most surprising launch from Patek Philippe at Watches & Wonders 2026 was the Celestial Sunrise and Sunset Ref. 6105G-001. The ref. 6105G arrives over a decade after its predecessor, the ref. 6102 (2012), which in turn replaced the ref. 5102 (2002). While the prior model was an incremental evolution over the original, the ref. 6105G is a drastic redesign with its spaceship-inspired aesthetic and 47 mm (!) white gold case that wears unexpectedly well. The ref. 6105G is also an upgrade in mechanical terms with the addition of an elegant and simple sunrise and sunrise display that’s smartly implemented on the date ring, and driven by a clever compliant mechanism. And the ref. 6105G has another trick up its sleeve, a mechanism that accounts for summer and winter time (also known as daylight saving time), which shifts the time display as well as the date ring backwards or forwards as the seasons change. Initial thoughts Put simply, the ref. 6105G is weird but cool. Some of Patek Philippe’s recent experiments with design have been so-so in attractiveness, but the ref. 6105G scores well, maybe even the best amongst the brand’s adventurous designs. It’s unlike any other Patek Philippe ever with its huge case and integrated rubber strap, but it is appealing. Even though the star chart complication is a historical one descended from the Henry Graves Jr. “Supercomplication”, it feels like a perfect match for the sci-fi case. The case is huge at 47 mm, but the ...

TAG Heuer’s Split-Seconds Goes High Tech with Laser Sintering SJX Watches
TAG Heuer s Split-Seconds Goes High Nov 19, 2025

TAG Heuer’s Split-Seconds Goes High Tech with Laser Sintering

TAG Heuer flexes its research and development muscles again with the performance-oriented Monaco Split-Seconds Chronograph Air 1. Using the iconic square chronograph as a base, the brand’s engineers took inspiration from its Formula 1 partnership to explore new manufacturing techniques for this 30-piece limited edition that boasts an ultra-light, hollowed-out 18k gold case fabricated with laser additive manufacturing. Initial thoughts The original Monaco from Heuer remains one of the more enduring chronograph designs, with the storied past and distinctive square form. It is refreshing to see TAG Heuer using it as a base for newer, technologically-oriented pieces. This new limited edition takes the already-supercharged crystallised titanium split-seconds released earlier this year and reimagines the square case. The result is a honeycomb-patterned case that is surprisingly lightweight for the size and material. The complex and layered construction of the Air 1, here in an exploded view. The team at TAG Heuer employed a new additive manufacturing technique with the goal of a sturdy yet remarkably light chronograph. Keeping in mind that gold is a dense (thus heavy) metal, making a watch that qualifies as “lightweight” is usually incompatible with including the precious alloy. Here the engineers came up with a way to reduce the volume of gold used, while keeping the components’ sturdiness intact. The timepiece itself can be a little much in terms of styling, with the ...

Grand Seiko Goes Gold SJX Watches
Grand Seiko Goes Gold Grand Seiko Sep 19, 2025

Grand Seiko Goes Gold

Grand Seiko has unveils three gold Spring Drive models with the new 9RA2 movement, the Japan-only Heritage Collection SLGA030, SLGA027 and SLGA028, in rose, white, and yellow gold respectively. The new collection benefits from a slimmer case, a longer power reserve, and some new dials to go with the satisfying heft of a full 18k gold bracelet that weighs in at almost 200 g. SLGA030 in rose gold. Initial Thoughts While mostly unknown outside Japan, a trio of gold Spring Drive models in 44GS-style cases on full gold bracelets were a staple of the domestic Grand Seiko catalog for nearly a decade, powered by the cal. 9R15 that was once the brand’s finest automatic Spring Drive movement. While identical to the cal. 9R65, save for a gold medallion on the rotor, Seiko set aside the best performing quartz timing packages for these special movements. The earlier generation of all-gold models, from left to right: SBGA364, SBGA361, and SBGA362. Grand Seiko has decided that now is the time to refresh the line with the upgraded cal. 9RA2, while preserving the heavyweight gravitas and luxurious bracelet of its predecessor. I have anticipated these watches since the second generation of Spring Drive movements launched in 2020; it took five years, but the result meets my expectations, though I would have liked a gold winding weight to match the case material. Selling watches on full precious metal bracelets in this segment is a mark of a strong brand. Gold prices and luxury margins bein...

The Omega Speedmaster Moonwatch Goes Two-Tone SJX Watches
Omega Speedmaster Moonwatch Goes Two-Tone Jun 7, 2024

The Omega Speedmaster Moonwatch Goes Two-Tone

Omega continues to expand the range of its famous chronograph with the Speedmaster Professional Moonwatch Bi-Colour. Following the recent Moonwatch with a white dial, the two-tone models are based on the Speedmaster cal. 3861 from 2021. The new pair share the 42 mm case, stepped dial, and “Nixon” bracelet, but they get a two-tone livery with gold elements in the bracelet, bezel, dial, crown, and pushers. And the gold is, of course, either one of Omega’s proprietary alloys, Moonshine or Sedna gold. Initial thoughts Before the long-overdue update in 2021, most notably with the cal. 3861, the Speedmaster Moonwatch was beginning to feel dated in terms of tech and specs. The iterations introduced since the update have been spaced out well and fill logical gaps in the Moonwatch lineup, essentially creating a variant of the Moonwatch for everyone. This two-tone pair is a good example of that. Though steel-and-gold variants of the Moonwatch have existed in the past, they have never been common, or even that popular. The new models aren’t for everyone, but a useful addition to the lineup. Both are Moonwatches in terms of intrinsic features and design, but look very different from the quintessential, no-frills steel model. The two-tone models cater to someone who wants a Moonwatch with a bit more shine and a slightly retro feel. At US$18,100, the two-tone Speedmaster is a fair value proposition. It’s significantly pricier than the all-steel version, but priced in line with...

Introducing – The Classic Tudor Black Bay (41mm) Goes All-Black Monochrome
Tudor Black Bay 41mm Goes Apr 9, 2024

Introducing – The Classic Tudor Black Bay (41mm) Goes All-Black

Last year, Tudor unveiled a deeply refreshed version of its original Black Bay – understand the 41mm edition – featuring multiple important changes; Master Chronometer movement, updated and slimmer case, new bracelet options, new clasp, new crown and new bezel… Almost an entirely new watch. First presented in the classic burgundy and gold colour scheme, […]

The TAG Heuer Carrera Skipper Goes Luxe in 18k Rose Gold SJX Watches
TAG Heuer Carrera Skipper Goes Luxe Apr 9, 2024

The TAG Heuer Carrera Skipper Goes Luxe in 18k Rose Gold

TAG Heuer is launching an upmarket of its sailing chronograph at Watches & Wonders 2024: the Carrera Chronograph Skipper in 18k rose gold is essentially the same as the steel iteration released in 2023, save for the precious metal case. Employing the well received “Glassbox” case, the Skipper has the signature domed dial flange that acts as an inner bezel, accentuated by a domed sapphire crystal. Unique to the Skipper model are the teal sub-dial at nine and the tri-colour register at three, both modelled on the vintage original. Initial Thoughts I am a fan of the Carrera Glassbox. It’s a surprisingly versatile model – some variants have a no-nonsense style that bring to mind the original racing chronographs of the 1960s, while others like the Skipper are strikingly coloured. Most variants nonetheless are inspired by the vintage Carrera in all its flavours. None of the other Carrera models come close to the Skipper’s sunburst blue dial with teal accents; it looks quite splendid under the sun. Not to mention that the Skipper happens to be very wearable at 39 mm. Whether the gold version is an appealing proposition is another questions altogether. Most would opt for the steel Skipper just as a matter of budget. That said, the rose gold Skipper at CHF 21,000, is an acceptable value proposition as solid-gold chronographs go. Its competitive advantage lies in the appealing, historically-inspired design and in-house column wheel chronograph movement – there are lots o...

Greubel Forsey Goes Big with Smaller Sports Watches SJX Watches
Greubel Forsey Goes Big Jul 21, 2023

Greubel Forsey Goes Big with Smaller Sports Watches

Historically known for its oversized, over-complicated watches, Greubel Forsey appears to be taking a step in a different direction as its resizes two of its bestselling sports watches, the Balancier Convexe S2 and Double Balancier Convexe. The Convexe duo are now thinner and smaller, while retaining the same ovoid form with a curved profile that characterises the brand’s sports watches. While the difference in case size between the earlier models and the new pair is worth noting, the downsizing is arguably more significant in its implications for the direction of the brand, which also recently announced an expansion to its sloping, glass-box manufacture. The Double Balancier Convexe (left), and Balancier Convexe S2 Initial thoughts  A reduction in size from Greubel Forsey is rather unexpected since its watches have traditionally been unashamedly large. To be fair, the brand utilised the large cases well to best display the complex movements and expert finishing. However, the extra-large watches, along with typically hefty price tags, have always placed the brand in a niche of its own – not only did buyers need the means to buy a six-figure watch, but also have the wrist circumference to pull it off.  While we have seen a shift in taste over the last couple of years towards decreasing case diameters, Greubel Forsey and its peer in the same price range, namely Richard Mille, had seemed immune to the change – or simply resistant. So, while the seemingly innocuous red...

Oris Goes Big with their New Aquis Worn & Wound
Oris Goes Big Jun 13, 2023

Oris Goes Big with their New Aquis

Oris is once again expanding their Aquis collection, this time debuting a reference with a small seconds indicator in a case with a larger footprint, the Aquis Small Second Date 45.5mm. The Aquis is one of the Swiss brand’s signature creations, and as such Oris has endeavored to make it available, and palatable, to a huge range of potential customers, with cases ranging from 36.5mm all the way up to 45.8mm for the Aquis Depth Gauge. Over the last few release cycles, we’ve seen Oris put a focus on the smaller and medium sized watches, but here we get a big one, with a case measuring 45.5mm, a brand new size for the diver, and featuring the increasingly rare small seconds indicator at 9:00.  When we think about dive watches, normally we consider them along the metric of water resistance and legibility, but there’s another core component of any diver that is less discussed and often taken for granted, and that’s being able to immediately determine if the watch is running. Needless to say, a dive watch that has stopped running doesn’t do you very much good at all, and could potentially be quite dangerous for a diver relying on their watch to time surface intervals or bottom time. If you picture a dive watch in your mind’s eye, you’re likely to think of one with a centrally mounted seconds hand, which makes it easy to see at a glance whether or not a watch is functioning at its most basic level. But for timing purposes, getting a readout to the second isn’t of ...

The Patek Philippe 5316P Grand Complications goes for a contemporary grail vibe Time+Tide
Patek Philippe 5316P Grand Complications goes Mar 29, 2023

The Patek Philippe 5316P Grand Complications goes for a contemporary grail vibe

Patek Philippe renders the five grail-worthy complications in a case combining classical and contemporary The sapphire dial subtly shows off the inner workings of the manually wound movement Unlike many pieces, the 5316 hides the tourbillon from the dial, only displaying it via an interchangeable sapphire or solid caseback It’s always a special occasion when … ContinuedThe post The Patek Philippe 5316P Grand Complications goes for a contemporary grail vibe appeared first on Time+Tide Watches.

Attention! Bausele goes US Army Mil-Spec with their latest creation Time+Tide
Bausele goes US Army Mil-Spec Oct 30, 2022

Attention! Bausele goes US Army Mil-Spec with their latest creation

What is a field watch? What is a diver? Those two questions can be answered in so many ways, depending on who you ask. Yet, there are instances when the answers to such questions are highly defined and set in stone. Such is the case when dealing with Mil-Spec watches. Mil- Spec, short for military … ContinuedThe post Attention! Bausele goes US Army Mil-Spec with their latest creation appeared first on Time+Tide Watches.

Introducing – The Hand-Engraved Grand Seiko 44GS Mystic Waterfall SBGZ011 Monochrome
Grand Seiko 44GS Mystic Waterfall SBGZ011 Apr 18, 2026

Introducing – The Hand-Engraved Grand Seiko 44GS Mystic Waterfall SBGZ011

Nature is a cornerstone of Japanese culture and a predominant theme at Grand Seiko. Even the settings of the Japanese brand’s manufactures are intentionally studied to inspire the takumi (artisans). Hailing from Grand Seiko’s haute horlogerie Micro Artist Studio in Shiojiri, the Japanese brand releases a high-end Masterpiece SBGZ011 in platinum, in a hand-engraved 44GS case and […]

Introducing: Grand Seiko’s 38mm 62GS SBGH376 “Sakura-Wakaba” And 37mm Evolution 9 SLGB006 “Ice Forest At Dawn” Fratello
Grand Seiko s 38mm 62GS SBGH376 Apr 13, 2026

Introducing: Grand Seiko’s 38mm 62GS SBGH376 “Sakura-Wakaba” And 37mm Evolution 9 SLGB006 “Ice Forest At Dawn”

The only sense of nature you can experience when spending days on end in Geneva’s Palexpo event center is by handling Grand Seiko novelties. Yes, we sometimes joke about the plethora of nature-inspired dial designs that the Japanese brand releases. Still, they’re most welcome during Watches and Wonders. After a couple of steamy sessions in […] Visit Introducing: Grand Seiko’s 38mm 62GS SBGH376 “Sakura-Wakaba” And 37mm Evolution 9 SLGB006 “Ice Forest At Dawn” to read the full article.

First Look – The Square Nomos Tetra Origins Series Goes For Earthy Tones Monochrome
Nomos Tetra Origins Series Goes Oct 16, 2025

First Look – The Square Nomos Tetra Origins Series Goes For Earthy Tones

It’s a well-known fact that many people express their personality through their clothing. Your personality can be reflected by your choice of clothes, hairstyle or the jewellery you wear. The same goes for watches, which are often considered an extension of the person wearing them. Nomos caters to personal expression with multiple (sub-)collections, such as the […]