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Water Resistance

Watch water-resistance ratings explained. Static pressure vs real-world depth.

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Water Resistance In Watches - Why “30m” Doesn’t Always Mean The Same Thing Fratello
Dec 8, 2025

Water Resistance In Watches - Why “30m” Doesn’t Always Mean The Same Thing

If you’ve spent any time looking at case backs, you’ll have noticed the little engravings -“30m,” “50m,” “100m,” and so on. On the surface, it feels straightforward: “30m” should mean you can dive down to 30 meters, right? Unfortunately, no, it definitely does not. But ask one brand, and it will advise you that “30m” […] Visit Water Resistance In Watches - Why “30m” Doesn’t Always Mean The Same Thing to read the full article.

What is 5 ATM Water Resistance? Watches’ Depth Ratings Explained Teddy Baldassarre
Aug 27, 2025

What is 5 ATM Water Resistance? Watches’ Depth Ratings Explained

Watches differ widely not only in their designs, materials, and functions but also in their ability to resist the detrimental effects of water and moisture. Some watch enthusiasts, especially those who wear their timepieces for diving, know exactly what they're looking for in terms of waterproofing, but many others might be unsure exactly how safe it is to wear their watch in the swimming pool or even to wash the car. What do watches' water-resistance ratings like 5 ATM or 10 ATM mean in the real world, and how exactly do industry terms like "bars" and "atmospheres" help you determine how waterproof your watch is? Here we address some commonly asked questions about water resistance in watches and break down what the most common depth ratings mean in practical terms.  What was the first water-resistant watch? Since the invention of the wristwatch, watchmakers have been coming up with solutions to address an inconvenient reality: namely, that water and tiny mechanical parts, such as those inside a watch movement, simply do not mix. The technical challenge of making a portable timepiece that could withstand exposure to water became even more prominent in the mid-20th Century, with the rise of diving as a tactical and eventually also a recreational pursuit. The first innovator to seriously take up the gauntlet was Rolex founder Hans Wilsdorf, who developed the now-famous Oyster case in 1926. Its groundbreaking design combined a threaded, hermetically sealed caseback and a cro...

Ep. #8 – Quartz Watches, Water Resistance, ToxicNATOs, and Gateways to Watch Collecting Two Broke Watch Snobs
Apr 1, 2017

Ep. #8 – Quartz Watches, Water Resistance, ToxicNATOs, and Gateways to Watch Collecting

Kaz and Mike talk about Quartz watches, their value, precision, durability, and why they make people angry in the pants. Our first quartz watches and what they mean to us as collectors today. Mike’s wife interrupts the watch snobs. We also talk about water resistance, how it's marketed, and share some cool new straps from ToxicNATOs. Kaz eats toxic candy.

Introducing: The Patek Philippe 5322G Brings A More Modern-Sized And Styled Chiming Alarm Function To The Catalog (Live Pics) Hodinkee
Patek Philippe 5322G Brings Apr 28, 2026

Introducing: The Patek Philippe 5322G Brings A More Modern-Sized And Styled Chiming Alarm Function To The Catalog (Live Pics)

What We Know Unveiled as part of a slew of new releases for Watches and Wonders 2026, the Patek Philippe 5322G offers a chiming 24-hour alarm complication in a modern case and design, with a new movement and a slightly smaller size than the discontinued model it replaces. The watch is housed in a white gold 41mm Calatrava case that's 12.22mm thick and features hollowed-out lugs, the brand's signature 'Clous de Paris' or "hobnail" guilloché pattern on the case middle, and a single pusher at 2 o'clock. The alarm is programmed through the pusher, and it can be set via the crown in the second position, which the brand says works "intuitively."  With a water resistance of 30 meters, Patek says the new 5322G is the only water-resistant chiming watch in the current collection. The new model replaces the Ref. 5520 Pilot Alarm Travel Time, which debuted in 2019 and was inspired by an historical aviator watch in the Patek museum in Geneva. Photo courtesy Patek Philippe. The model continues Patek's modern Calatrava style with a textured, lacquered dial in green or blue. The applied Arabic numerals and white-gold, syringe-style hands are both filled with luminescent material, adding to the contemporary feel. A hand display date sits at 6 o'clock, while the double-window aperture of the alarm function sits above the handset at 12 o'clock. Powering the 5322G is the new self-winding AL 30-660 S C caliber that chimes the alarm with a single hammer striking a classic gong around the case...

Introducing: TAG Heuer Formula 1 'Solargraph' Softens Up With New Pastels Hodinkee
TAG Heuer Formula 1 Solargraph Softens Apr 21, 2026

Introducing: TAG Heuer Formula 1 'Solargraph' Softens Up With New Pastels

What We Know It's easy to argue that the relaunch of the TAG Heuer Formula 1 (with the added bonus of a solar-powered movement) was both highly anticipated and resulted in one of the most fun summer watches of 2025. Some of the watches stuck around, and some were short-term limited editions tied to different Formula 1 races throughout the year. But if you were waiting for alternative watches (especially vintage-inspired ones), you're in luck, because the brand has dozens of previous variations they haven't tapped to re-release yet. So with that in mind, TAG Heuer has gone for more pastel-inspired releases that start pre-sale on April 28. The new Formula 1 models come in five variations. In a pastel blue, beige/yellow, or pink TH-Polylight cases (TAG Heuer's proprietary bio-polyamide plastic) that are color matched to their opaline dials and Polylight bezels or with sandblasted steel cases with violet-blue dials/bezel with pink accents or pastel green dials/bezels (with eight VS-grade diamonds in place of the circular hour markers), there's a lot of variations available. There's no doubt that these watches lean a bit more feminine than previous releases. The sizing is pretty unisex, however, measuring 38mm by 9.9mm with solid casebacks and screw-down crowns, giving the watch 100m of water resistance. The watches with the Polylight cases come on color-matched rubber straps with pin buckles, while the stainless steel versions have matching sandblasted stainless steel three-ro...

Watches & Wonders: Bremont Races to the Moon with the Space-Themed Supernova Chronograph Worn & Wound
Bremont Races Apr 14, 2026

Watches & Wonders: Bremont Races to the Moon with the Space-Themed Supernova Chronograph

Because of the Artemis II launch earlier this month, the moon is all the rage again. That’s why the timing for Bremont’s Supernova Chronograph feels so auspicious: not only because it was designed with the stars in mind, but because it might actually go to the moon itself.  To promote the Supernova-which is an entirely new family, and not just a single release-Bremont is partnering with the aerospace company Astrolab, which is planning to send a FLIP (FLEX Lunar Innovation Platform) rover to the moon’s surface. In a future spacefaring reality, the Flexible Logistics & Exploration (FLEX) rover can traverse lunar and Martian terrain, delivering cargo with a 30-kg payload. That’s more than enough room to fit a Supernova, which will net Bremont as the first watch permanently placed on the moon’s surface. The Supernova Chronograph ticks the boxes of a terrestrial sports watch: with 100-meter water resistance, stainless-steel construction, and an integrated bracelet and optional rubber strap, it carries a bold presence that seems much tougher than the current lineup. The primarily brushed case, measuring 41mm and featuring smaller polished contrasts, is cushion-shaped, harkening to the midcentury enthusiasm for space exploration. The black bezel is made from ceramic and cut into ten sides.  The Supernova’s dial features contrasting triangular arrows and a geometrically aligned waffle pattern. On the main dial they’re both black, but in the subdials the triang...

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...

Watches & Wonders: the Nomos Tangente neomatik 38 Update Brings the Date Ring and the Midas Touch to a Smaller Size Worn & Wound
Nomos Tangente neomatik 38 Update Apr 13, 2026

Watches & Wonders: the Nomos Tangente neomatik 38 Update Brings the Date Ring and the Midas Touch to a Smaller Size

In the Nomos Glashütte lineup, the Tangente is one that brings it all: the allure of 18-karat gold, sizes that range from 33 to 42mm, a unique and subtle date ring, even a few models rated to 1,000 feet of water resistance.  Now the most popular features merge into one aptly-named release: the Tangente neomatik 38 Update, making its debut at this year’s Watches & Wonders. It begins with the mid-sized case that measures 38.5 millimeters, hitting the sweet spot of popularity and balanced proportions. And it’s now available in 18-karat gold, alongside the stainless steel seen on most Tangente models.  “By introducing Tangente Update in gold,” says Nomos CEO Uwe Ahrendt, “we are also responding to a frequently heard request for modern dress watches, crafted from precious metal.”    The most important feature in this new model is adapting the date ring into a smaller format. The date ring, which Nomos calls Update, circles the edge of the dial with oval windows marking the days of the month, indicating the current date with two red markers on either side.  Previously, the date ring was formerly only available in a 41mm size, or in an unusual two-date system that debuted in 2024. What’s under the skin and behind that 18-karat gold case is the neomatik caliber DUW 6101: an automatic-wind movement with up to 42 hours of power reserve that now gets the same date ring system adapted into a smaller size (just 7.4mm in height, a squeak below the 7.8mm size of the ...

Introducing: The New Panerai Luminor Collection Fratello
Panerai Luminor Collection Last year Apr 13, 2026

Introducing: The New Panerai Luminor Collection

Last year, Panerai refreshed its Luminor Marina collection and introduced slimmer cases with increased water resistance ratings. This year, the brand is playing directly to my wheelhouse by updating its Luminor collection. For reference, these watches include manual-winding movements, which I love to see and use. We were fortunate to have these pieces in our […] Visit Introducing: The New Panerai Luminor Collection to read the full article.

Hands-On: the Wolbrook JetFlyer and the New Jeambrun PS6402 Automatic Chronograph Caliber Worn & Wound
Wolbrook 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...