Jens Koch | WatchTime - USA's No.1 Watch Magazine

Jens Koch

Articles by Jens Koch

Crosswind at the Matterhorn: Reviewing the Hamilton Khaki X-Wind Day Date

“X-Wind” means crosswind and refers to a special function of the Hamilton Khaki X-Wind Day Date pilots’ watch. We accompanied an Air Zermatt helicopter pilot on flights around the Matterhorn and tested the watch to see how it performs in action. (Original photos by Marcus Krüger, story from WatchTime Archives.) Shortly after sunrise, we glide...

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Sep 15, 2023 by Jens Koch

A Legend Reborn: Meet the Limited Edition Hanhart 417 C Flyback

With the 417 C Flyback LE, Hanhart and Chronos — the German sister magazine of WatchTime — present a limited-edition model in steel and bronze. The favorite of Steve McQueen and former German Bundeswehr chronograph comes with a column-wheel chronograph, flyback function, and a manual-winding movement. The Hanhart 417 started its career as a tool...

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Sep 15, 2023 by Jens Koch

PORTFOLIO

Time Machines: 7 Automotive-Inspired Retro Watches

A classic car is a time machine into the past. But what about the smaller machines that measure time’s passage? Which watches would harmonize best with a vintage car’s styling? Fortunately, the retro trend in watches is bigger than ever. Here are seven suggestions, photographed by our own Nik Schölzel.

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Sep 10, 2023 by Jens Koch

Understated Divers: A Comparison Test of the Oris Aquis Date and Sinn U50

Oris and Sinn have released smaller versions of their popular dive watches, the Aquis Date and U50. What can these 41- and 41.5-mm-diameter newcomers do? Find out in this comparative review from our October 2020 issue, with original photos by Nik Schölzel. “Honey, I shrunk the U1” is the headline of Sinn’s ad for its...

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Sep 2, 2023 by Jens Koch

WATCH TEST

Hands-On Review: Rolex GMT-Master II “Pepsi” Ref. 126710 BLRO

This article is from the WatchTime Archives and was originally published in 2021. Coke or Pepsi? It’s a matter of taste, some say, and individual tastes always differ. But there’s only one right answer if you’re talking about the Rolex GMT-Master. Although the manufacturer made a version that had a GMT bezel in red and...

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Aug 27, 2023 by Jens Koch

FEATURE

Double Time: Eight GMT Watches For Travelers at Work and Play

A second time zone can be shown in many ways, offering a wide range of options for watch designers. As the summer travel season winds down, we showcase some notable timepieces with second-time-zone (GMT) displays in this article from our 2019 Special Design Issue.

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Aug 6, 2023 by Jens Koch

Underwater Pathfinder: The Tudor Pelagos FXD

This article was originally published in the July/August 2022 Issue of the WatchTime print magazine. Photos by Marcus Krüger. Tudor has revived its tradition as a supplier to French Navy combat swimmers with a tool watch that incorporates historical design elements while meeting the elite unit’s modern specifications for a navigation instrument. Since 1960, Tudor...

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Aug 2, 2023 by Jens Koch

FEATURE

Luxury in Steel: A History of the Patek Philippe Nautilus

tek Philippe introduced the Nautilus in 1976. Since then, it’s become one of the brand’s most sought-after watches. In this feature from the WatchTime archives, we trace the evolution of the Nautilus through its 40+-year history.

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Jul 30, 2023 by Jens Koch

Testing Speed With the Zenith Defy Extreme

This article was originally published in the May/June 2022 Issue of the WatchTime print magazine. Zenith built the El Primero, the world’s most accurate chronograph, in 1969. But now the manufacture has increased its beat frequency from 1/10 to 1/100 of a second. We took a look at what the fastest mechanical watch can do with its...

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Jul 11, 2023 by Jens Koch

Military History: Testing the Sinn Model 158

With Model 158, Sinn has revived a little-known facet of its history: the Bundeswehr Chronograph. Presented in a refreshed, limited edition, how well does this retro chronograph perform? Sinn is known for making watches for police and military forces. The EZM 1, for example, was the first mission timer Sinn designed in 1997 for special...

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Jul 3, 2023 by Jens Koch

Competition in the Sea: Rolex vs. Omega Dive Watches

Rolex and Omega are renowned and admired for their dive watches. In direct comparison, which one of the two leading brands dives deeper, offers more value for the money and performs better? The Submariner divers’ watch has been one of Rolex’s most popular models, and not only since its redesign in 2020. Omega has also...

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Jul 1, 2023 by Jens Koch

Air, Land, and Sea: Breitling vs. IWC

This article was originally published in the May/June 2022 Issue of the WatchTime print magazine. IWC and Breitling have different ideas about how a pilots’ watch should be designed. Both brands rely heavily on their own in-house traditions. At IWC, the Big Pilot’s Watch from 1940 stands front and center — IWC and other manufacturers supplied...

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Jun 29, 2023 by Jens Koch

A Hero Made of Steel: A Hands-On Review of the A. Lange & Söhne Odysseus

With its first stainless-steel model, A. Lange & Söhne seeks to gain a foothold in the world of luxury sports watches. How does the Odysseus, which bears the name of a legendary hero from Greek mythology, perform in our test?

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Jun 17, 2023 by Jens Koch

Blue Lagoon: Testing the Tudor Black Bay Fifty-Eight Navy Blue

Tudor has expanded its popular Black Bay Fifty-Eight series of dive watches. One of the latest additions is a blue version with a manufacture caliber and a moderately sized 39-mm case that won the “Challenge” watch award at the 2020 Grand Prix d’Horlogerie de Genève (GPHG). How does Tudor’s award-winner fare in our test? The...

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Jun 11, 2023 by Jens Koch

Aircraft Maintenance: Taking Apart the IWC Big Pilot’s Watch 43

This article was originally published in the March/April 2022 Issue of the WatchTime print magazine. Photos by Marcus Krüger. IWC reduced the size of its iconic Big Pilot’s Watch by 3 mm, cleaned up the dial and installed a new in-house movement. Does this innovative model make the grade? We took it apart to find...

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Jun 7, 2023 by Jens Koch

FEATURE

Tools for the Depths: The Dive Watches of Rolex

Dive watches from Rolex are highly sought after. And it’s no wonder with such an exciting history, a number of noteworthy collaborations, unique designs and robust, accurate in-house movements. We explore the various models in this feature from the WatchTime archives. Rolex currently produces four different dive watch models: the Submariner and Submariner Date, the...

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Jun 4, 2023 by Jens Koch

The Extra-Terrestrials: 5 Timepieces with Meteorite Dials

Meteorites are extraterrestrial objects that have passed through the atmosphere and landed on Earth. They can be divided into two different types: stone meteorites and iron meteorites. Most meteorite dials are made from the latter, which make up only four percent of all meteorites. Iron meteorites were born in the core of four-billion-year-old asteroids that...

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Apr 23, 2023 by Jens Koch

’80s Revival: Reviewing the Breitling Super Chronomat B01 44 with UTC Module

With the Super Chronomat, Breitling revives a model from the 1980s – including a roller bracelet with an integrated GMT module. We give it a hands-on test in this feature from the WatchTime archives. When it comes to mechanical watches that were introduced in the ’80s, not that many models are still remembered today. But...

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Feb 26, 2023 by Jens Koch

Off to New Heights: Rolex Explorer II

This article was originally published in the January/February 2022 Issue of the WatchTime print magazine. Photos by Marcus Krüger. To mark the model’s 50th anniversary, Rolex has updated the Explorer II with a new movement and subtle design modifications. We look at what the most recent version can offer collectors, explorers and adventurers. Before last year’s Watches...

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Feb 21, 2023 by Jens Koch

Lift-Off: 6 Watches (Other Than the Omega Speedmaster) That Went to Space

In 1957, the first artificial satellite named Sputnik 1 was launched into space by the Soviet Union, triggering a race among nations. For security reasons, astronauts always carried a wristwatch with them. These six timepieces played a unique role in this conquest of space.

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Jan 28, 2023 by Jens Koch

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