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Watches & Wonders: Zenith Expands the Chronomaster Sport Line with New Skeleton References, Plus a Two-Tone Version with MOP Dial, and a New Micro-Adjustable Clasp Worn & Wound
Zenith Expands Apr 13, 2026

Watches & Wonders: Zenith Expands the Chronomaster Sport Line with New Skeleton References, Plus a Two-Tone Version with MOP Dial, and a New Micro-Adjustable Clasp

Zenith has released five new references under the Chronomaster Sport umbrella, most notably with four skeletonized versions of the design, as well as a dressier two-tone option. To understand the new skeletonized editions, it’s probably best to start at the beginning. When Zenith introduced the El Primero in 1969, it launched what is widely regarded as the world’s first automatic, integrated high-frequency chronograph caliber, a movement that has remained central to the brand’s identity ever since. The Chronomaster collection has long carried that legacy forward, and with this new series of skeletonized watches, Zenith brings that movement further to the forefront. All of the skeleton models run on the El Primero 3600SK, the openworked version of Zenith’s high-frequency automatic chronograph. Like the standard El Primero 3600, it beats at 5 Hz, which allows the central chronograph hand to complete one full rotation every 10 seconds and display 1/10th of a second directly off the bezel. The movement also offers a 60-hour power reserve, while the open dial and caseback give a clear view of the column wheel, horizontal clutch, and star-shaped rotor. All come in the now familiar 41mm Chronomaster Sport case. In regards to the design of the Chronomaster Sport Skeleton models, the biggest visual shift comes from the opened-up dial. The collection includes two stainless steel versions: one with a black ceramic bezel and the signature grey, anthracite, and blue tri-color c...

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Interview - Adrian Bosshard, CEO of Rado, About the Mastery of Ceramics and the New Integral Collection Monochrome
Casio n allows us Apr 10, 2026

Interview - Adrian Bosshard, CEO of Rado, About the Mastery of Ceramics and the New Integral Collection

When it comes to ceramics, Rado is the brand that comes to mind. Rado presented its first ceramic watch in 1986, just 40 years ago… This anniversary marks not only a technological breakthrough, but also the beginning of a long-standing expertise that has become a signature. This special occasion allows us to sit down with […]

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eBay Finds: A Vintage Omega Constellation, Some Funky Vintage Seikos, and a Hamilton in Great Condition Worn & Wound
Hamilton Apr 10, 2026

eBay Finds: A Vintage Omega Constellation, Some Funky Vintage Seikos, and a Hamilton in Great Condition

eBay Finds is back! This bi-monthly installment will feature a selection of watches currently listed on eBay that have caught the eye of editor Christoph McNeil (@vintagediver). If you come across any hidden gems on the ‘Bay drop us a note at info@wornandwound.com for potential inclusion. Omega Constellation  First up this week is a nice vintage Omega Constellation. Now, this isn’t the more well known pie-pan version, but it’s still a stunning piece made with the same attention to detail. This is a later 1960s version, with a large “C” style case that is in excellent condition. Nice crisp edges with the original brushed and polished finish. The caseback observatory medallion is not an added gold piece, but rather engraved directly into the steel back. The crown is signed and looks correct. The dial has a beautiful cross-hatch linen texture to it, with thin stick markers and stick hands. There is a day/date window at three o’clock. Dial looks clean and original. The watch comes on the original brick link bracelet, although one of the links is broken and it will need repair. No movement picture but the watch runs per the seller.  View auction here Seiko JDM Sport Diver   Here’s a great Seiko diver that is a modern re-issue of a vintage model. In the late 1990s Seiko did a series of Sport Diver re-issues with modern specs and movements. These are a great way to have that vintage vibe but not have to worry about babying the watch. This one has a tonneau shaped...

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