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Results for The Longitude Problem

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The Longitude Problem

The 200-year navigation crisis solved by John Harrison\'s H4 marine chronometer (1759); the lineage to modern COSC and Master Chronometer.

Patek Philippe’s Celestial Ref. 6105G Blasts Off SJX Watches
Patek Philippe s Celestial Ref 6105G Apr 14, 2026

Patek Philippe’s Celestial Ref. 6105G Blasts Off

Patek Philippe updates its star chart “Grand Complication” for the third time with the Celestial Sunrise Sunset Ref. 6105G. The ref. 6105G adds the time of sunrise and sunset – cleverly integrated into the date scale – and a daring new design with a formidable, space-age lug-less case in white gold that’s 47 mm across. The ref. 6105G also introduces a novel way to account for the transition between summer and winter time, adding a corrector that shifts the sunrise and sunset scales, solving a significant shortcoming of astronomical watches for users in Europe and the Americas. Initial thoughts I’ve long thought that Patek Philippe’s greatest strength, other than its massive industrial investments, was its remarkable design diversity. Today brands seem to pursue a unified design language across all of their watches. And while this result is a strong visual identity for the brand, it is extremely limiting. Patek Philippe has no such limits, and the brand has about two dozen different case styles in the current collection, and hundreds in its back catalog. While this leads to its fair share of design misses, at least to my sensibilities, it can also lead to striking successes. I’m sure many will disagree, but I see the new Celestial as the latter. A wristwatch with the time of sunrise and sunset is long overdue from Patek Philippe, and this watch adds the ability to adjust those indications to account for daylight savings time. This addresses the complication...

First Look - The New Ulysse Nardin Super Freak, Quite Possibly the Most Complex Time-Only Watch Ever Monochrome
Ulysse Nardin Super Freak Quite Possibly Apr 14, 2026

First Look - The New Ulysse Nardin Super Freak, Quite Possibly the Most Complex Time-Only Watch Ever

Some watches follow the established path of horology, refining proportions, improving calibres, and adjusting aesthetics within well-defined and safe boundaries. And then some watches question nearly everything that is considered conventional and classic. When the Ulysse Nardin Freak was unveiled in 2001, it introduced a new design, a new movement, but it also proposed an […]

Watches & Wonders: Tudor Introduces the Black Bay 54 Blue Worn & Wound
Tudor Introduces Apr 14, 2026

Watches & Wonders: Tudor Introduces the Black Bay 54 Blue

Tudor continues to expand their Black Bay 54 collection at this year’s Watches & Wonders with the Black Bay 54 “Blue”. Since the launch of the original Black Bay 54, the diver has settled into a role as a favorite among enthusiasts for its slender, compact proportions. The original release was a straightforward black dialed, black bezel affair, and last summer saw the surprise launch of the “Lagoon Blue” reference that re-characterized the watch as a fun, more jewelry oriented diver than we would have expected. A diver with a blue dial and bezel is frankly something expected in a dive watch lineup these days, so this release is not so much a surprise, but it’s interesting to see how Tudor executes on a dive watch standard.  In terms of specs, there are no big surprises here, and this edition of the 54 follows those that have come before. The case in stainless steel measures 37mm in diameter and has water resistance to 200 meters. It runs on the same MT5400 movement, which is COSC-certified and has a silicon balance spring and 70-hour power reserve. It’s available on both a rivet style three link bracelet or a rubber strap.  The blue dial is very, very blue. Tudor refers to it as “sapphire blue” and in the bright lights of their booth at Palexpo the sunray finishing and almost purple-ish hues are quite prominent on the dial. It’s very saturated, and I think even in less intense lighting it will have a lot of presence. If you compare it to other blue wa...

Introducing - Jaeger-LeCoultre Master Hybris Inventiva Gyrotourbillon a Stratosphere Monochrome
Jaeger-LeCoultre Master Hybris Inventiva Gyrotourbillon Apr 14, 2026

Introducing - Jaeger-LeCoultre Master Hybris Inventiva Gyrotourbillon a Stratosphere

Any watch bearing “Hybris” in its name represents the pinnacle of Jaeger-LeCoultre’s mechanics and craftsmanship. Representing the third pillar of the elite Hybris family, the new Inventiva series is dedicated to single, groundbreaking complications. The first in line is the extraordinary Master Hybris Inventiva Gyrotourbillon à Stratosphère Calibre 178. Building on two decades of multi-axis […]

Rolex Celebrates the Oyster SJX Watches
Rolex Celebrates Apr 14, 2026

Rolex Celebrates the Oyster

This year marks the 100th anniversary of the Rolex Oyster, the first waterproof watch produced by the brand. Rolex just announced two new Oyster Perpetual models to mark the occasion. One is a sombre 41 mm Rolesor Anniversary model (Ref. 134303) which blends gold with steel and the other is a playful 36 mm Jubilee Dial (Ref. 126000) which focuses on colour and patterns.  Initial thoughts Celebrating 100 years of the landmark Oyster case is certainly important to Rolex, as that original invention has been defining the brand ever since. Choosing arguably the plainest model line to mark the occasion is both meaningful and inspired. The entry-level Oyster Perpetual line manages to still bridge the gap between what Rolex has become and what the brand was 100 years ago. This back-to-basics approach gave birth to interesting models, which couldn’t be more different. The  restrained 41 mm anniversary Oyster Perpetual is dressed in 904L Oystersteel paired with a yellow gold bezel and crown. Complemented by the gold accents on the dial and hands, the final look is very reminiscent of some configurations of the beloved “Bubbleback” Oyster era.  At the opposite end of the spectrum, the new 36 mm Jubilee loses all celebratory sobriety and instead relies on a colourful reinterpretation of the Jubilee monogram dial introduced back in the 1970s. The blocky letters printed in vivid colours make for a look that is split between vintage inspired and excessively modern.  This Oyster...