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Dive Watches · Page 11

Tudor Introduces A Slimmer Black Bay 58 With Master Chronometer Certification And Another Bracelet For The Black Bay 58 GMT Fratello
Apr 14, 2026

Tudor Introduces A Slimmer Black Bay 58 With Master Chronometer Certification And Another Bracelet For The Black Bay 58 GMT

Tudor expands its lineup of mid-size dive watches with an updated Black Bay 58 and a new bracelet option for the Black Bay 58 GMT. Both watches keep the familiar 39mm case and continue to draw on late-1950s Tudor dive-watch aesthetics. The three-hand model adds technical upgrades, revised case proportions, and Master Chronometer certification. These […] Visit Tudor Introduces A Slimmer Black Bay 58 With Master Chronometer Certification And Another Bracelet For The Black Bay 58 GMT to read the full article.

In-Depth - The Grand Seiko Spring Drive UFA Ushio 300 Diver, GS’ Smallest and Most Accurate Dive Watch Monochrome
Apr 13, 2026

In-Depth - The Grand Seiko Spring Drive UFA Ushio 300 Diver, GS’ Smallest and Most Accurate Dive Watch

While dive watches are fundamental to Seiko’s Prospex collection, the concept is slightly less natural for Grand Seiko. At first sight… Indeed, the higher-end brand of Seiko Corporation has been active in the field of purpose-built diving instruments since 2008, delivering impressive models, whether in terms of specs, looks or, unfortunately, size. One of the main complaints heard […]

Watches & Wonders: Grand Seiko Finally Gives Us a Medium Sized Dive Watch, and it Includes a Spring Drive Powered U.F.A. Movement Worn & Wound
Apr 13, 2026

Watches & Wonders: Grand Seiko Finally Gives Us a Medium Sized Dive Watch, and it Includes a Spring Drive Powered U.F.A. Movement

If you were take a poll of Grand Seiko enthusiasts and collectors to ask them what they thought was missing from the brand’s catalog, I have a feeling a significant portion of respondents would tell you the same thing: a great dive watch. Grand Seiko has, of course, been making divers for years, and a lot of them have been objectively outstanding and well liked by certain pockets of the Grand Seiko community. But they’ve never had a diver that’s really caught fire in the way that something like the Snowflake has – there’s no icon in their dive watch range. I think most would agree that this is at least in part because to this point the brand’s dive watches have always been on the chunky side, and not really a viable competitor to the Submariners and Seamasters of the world in terms of their wearability.  Grand Seiko seeks to change that at Watches & Wonders this year, with the rather ambitious release of the new Spring Drive U.F.A. Ushio 300 Diver. This new 40.8mm High-Intensity Titanium dive watch uses a new Spring Drive movement featuring the same tech as last year’s 9RB2 Spring Drive caliber, which boasts an accuracy rate of plus or minus 20 seconds per year.  There are really two notable things about this watch. First, there’s the movement, Caliber 9RB1, which has the same U.F.A (Ultra Fine Accuracy) designation as the 9RB2 introduced last year. The 20 second annual accuracy rate is, according to Grand Seiko, the most accurate wristwatch movement powe...

Gagà Laboratorio’s New Aqualab Pulls Off A Tricky Design Brief Fratello
Apr 13, 2026

Gagà Laboratorio’s New Aqualab Pulls Off A Tricky Design Brief

When I heard Gagà Laboratorio was launching its first dive watch, the Aqualab, I was skeptical. The brand’s distinct identity made me question how it would translate into a sportier, tool-oriented direction. That’s a testament to the uniqueness of its design language, not a criticism of its existing watches. The Labormatic, for example, always struck […] Visit Gagà Laboratorio’s New Aqualab Pulls Off A Tricky Design Brief to read the full article.

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

Hands-On: the Wolbrook JetFlyer and the New Jeambrun PS6402 Automatic Chronograph Caliber Worn & Wound
Apr 6, 2026

Hands-On: the Wolbrook JetFlyer and the New Jeambrun PS6402 Automatic Chronograph Caliber

I’d like to think I am a bit of a movement nerd. Not in the sense of knowing all of the technical attributes (actually, I wish I knew more there), but rather about what movements are on the market from the major suppliers. Hand me a watch, even with a complication, and I can probably tell you what movement it has in a matter of seconds (assuming it’s mechanical) by the positioning of the hands, complications, rotor bearing, etc. So, last fall, when I was handed a prototype of a new chronograph by Wolbrook and, upon seeing the dial, realized I had no idea what movement it had, my interest was piqued. The watch was the Wolbrook Jetflyer, which I have since had the opportunity to spend more time with. An extension of the French brand’s proven line of tool dive watches based on vintage models, the Jetflyer is their first foray into mechanical chronographs. As the name suggests, the Jetflyer is not meant as a “dive” chronograph, but rather as a pilot’s, though that’s largely semantics, as there are a lot of overlaps in design language (and the WR is 100m). I’ll get back to the particulars of the design, because what really stands out is the movement. $845 Hands-On: the Wolbrook JetFlyer and the New Jeambrun PS6402 Automatic Chronograph Caliber Case Stainless Steel Movement Jeambrun PS 6402 Dial Mattte Black Lume X1 Super-Luminova Lens Domed Sapphire Strap Leather or Bracelet Water Resistance 100m Dimensions 38 x 46mm Thickness 14.3mm Lug Width 20mm Crown Screw-d...

Comments 1

  1. Tomek
    ISO 6425 is real standard, not marketing talk. Good that article mention this. Too many watches claim 'dive ready' but not certified. Unidirectional bezel and screwed crown are not optional if you go deep.

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