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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.

Raheem Sterling lost £300,000 of watches in a robbery. How should he replace them? Time+Tide
Dec 13, 2022

Raheem Sterling lost £300,000 of watches in a robbery. How should he replace them?

Poor Raheem Sterling has endured a rough time of late. There was the familiar heartache of England being knocked out of the World Cup with Gareth Southgate’s team adopting their customary roles as plucky nearly-men destined to lose against the first decent team they face. If that wasn’t bad enough, while Sterling was in Qatar, … ContinuedThe post Raheem Sterling lost £300,000 of watches in a robbery. How should he replace them? appeared first on Time+Tide Watches.

Seiko Introduces the Presage 110th Anniversary SPB359 SJX Watches
Seiko Introduces Dec 13, 2022

Seiko Introduces the Presage 110th Anniversary SPB359

Seiko made history when it produced the first-ever made-in-Japan wristwatch in 1913. Known as the Laurel, the 1913 wristwatch was typical of the era when pocket watches were evolving into wristwatches. To mark the 110th anniversary of its first wristwatch, Seiko debuts the Presage Seiko Watchmaking 110th Anniversary ref. SPB359. Featuring a fired enamel dial, the Presage 110th Anniversary is modelled on the 1913 original, right down to the case reminiscent of a pocket watch. Initial thoughts Seiko regularly rolls out Presage limited editions with dials ranging from porcelain to Japanese lacquer, but all share the same case style despite the diversity in dials. In contrast, the Presage 110th Anniversary is refreshingly different and unique within the Presage line-up. Not only is the case executed in the style of an early 20th century watch, it is also more compact than the typical Presage, measuring at 37.5 mm in diameter instead of the usual 40.5 mm. That said, the new Presage is still fairly thick at over 12 mm high as a consequence of the movement inside. Both the case design and dimensions give it a distinctly different look and feel from past Presage models. This means the anniversary edition has appeal even for someone who already owns a past Presage model. And as expected for Seiko, the Presage 110th Anniversary is solid value with a retail price of about US$2,000. The 1913 Laurel in the Seiko Museum Retro styling Entirely polished and stainless steel, the case of t...

Why do Watches Use Sapphire Crystals? A Brief History and a Few Altern Teddy Baldassarre
Dec 12, 2022

Why do Watches Use Sapphire Crystals? A Brief History and a Few Altern

Watches differ greatly in their sizes, designs, capabilities, straps and bracelets, and even in the materials used to make their cases. The one element that nearly always seems to be present when we peruse watches’ specifications is the use of sapphire for the crystal (for the newest of newbies, that’s the round, glass window over the dial). Over a certain “luxury” price point, a sapphire crystal is not even seen as a benefit but the baseline standard, like tempered laminated glass in a car windshield. How did sapphire come to play this key supporting role in watch manufacturing, and what did watchmakers use before it came along? For that matter, what differentiates different types of sapphire crystals from each other? Which materials other than sapphire are still being used in the watch industry, and why? And is sapphire being used for anything else in horological circles besides crystals? What are the properties of sapphire? Believe it or not, that little lens over the dial of your watch is made from one of the hardest substances on Earth. It is one of two precious gemstones from the mineral variety corundum, the other being ruby. Corundum, a crystallized aluminum oxide, is clear in its purest state; sapphires and rubies receive their blue and red colors, respectively from impurities: traces of titanium, and iron in the former, and of chromium in the latter. Sapphire (above) has a ratio of 9 on the Mohs Hardness scale. Among minerals, only moissanite, a naturally...

We let an AI review three of the most iconic watches. Here are the results Time+Tide
Dec 12, 2022

We let an AI review three of the most iconic watches. Here are the results

“It seems probable that once the machine thinking method had started, it would not take long to outstrip our feeble powers… They would be able to converse with each other to sharpen their wits. At some stage, therefore, we should have to expect the machines to take control.” – Alan Turing. Whenever I think of … ContinuedThe post We let an AI review three of the most iconic watches. Here are the results appeared first on Time+Tide Watches.