Certina is one of those under the radar watch brands that, despite being Swatch Group’s best keep secret, produce some of the most compelling tool watches out there. For years, if you wanted a serious dive watch from Certina, you practically needed the forearm of a commercial deep-sea welder to carry it. The classic 43mm versions were proper wrist-bricks, and even though they were brilliantly put together, they simply didn’t work for everyone. But the brand listened to what the enthusiast community was actually asking for. It downsized the case to 38mm, ditched the heavy stainless steel in favor of full titanium, and upgraded the bezel insert to scratch-proof ceramic. Certina experts even re-engineered the dial construction, giving rise to the DS Action Diver 38mm Titanium in 2023.
[toc-section heading=”Honey, I Shrunk the Diver”]
Unless you possess the forearms of a professional lumberjack, a 44mm dive watch can end up feeling incredibly top-heavy on the wrist. Regardless of how handsome the dial is, if the lugs hang over the edges of your wrist, the watch will feel cumbersome, which is why the case diameter of the DS Action Diver Titanium was such a welcome arrival for the smaller-wristed community. But as any seasoned collector knows, the measurement that dictates much of whether a watch will comfortably hug your arm or not is the lug-to-lug span. Certina nailed it at just 45mm. Furthermore, the lugs sweep downwards so that they sit closer to the wrist.
The entire case and the solid-link bracelet are milled from titanium, so the overall mass drops drastically. As confusing as it may be for you to comprehend what the weight of this substantial dive watch would feel like in the hand, this 300-meter water-resistant watch measures a depth of 13.22mm with an impressively low center of gravity, so you don’t have to strangle your wrist by doing the bracelet up too tight just to keep the watch in place.
[toc-section heading=”Grade 2 Titanium”]
Certina opted for Grade 2 titanium for this watch, and in my view, that was the absolute right decision. Grade 2 is commercially pure titanium and is completely hypoallergenic. It’s also resistant to saltwater corrosion and lightweight, but its greatest asset is its aesthetic: a dark, warm, matte-grey tone you don’t get with steel. This metal alloy doesn’t sparkle or catch the light; rather, it absorbs ambient light, giving the watch a brooding, industrial, tactical feel, almost like a piece of military hardware rather than a piece of jewelry.
From a manufacturing perspective, working with pure titanium has its challenges. It’s gummy and can quickly wear down expensive machinery. If you run the machine too fast, friction can cause metal shavings to catch fire. As you can imagine, achieving sharp transitions and crisp lug bevels is a serious job. To do all of that and sell the watch for just above the $1,000 mark is definitely bang for your buck.
[toc-section heading=”‘DS’ Means Double Security”]
The New DS Concept Extreme Shock Resistance
Introduced back in 1959, Certina’s Double Security (DS) concept solved a genuine problem. If you dropped your watch, the impact would travel straight through the steel case and shatter the delicate pivots on the balance wheel. Realizing that these kinetic shocks were killing mechanical movements, the company designed the original DS system, which suspended the movement inside a thick rubber ring that essentially floated the engine within the chassis. With this invention, the brand had invented a pretty neat shock absorber.
For the modern DS Action Diver, Certina took that vintage philosophy and heavily modernized it into the DS Concept Extreme Shock Resistance, engineering a rigid, ultra-thin metal plate that sits precisely between the dial and the movement. If you smash this watch against a doorframe, that plate prevents the dial from flexing, which is essentially what bends hands and jams date wheels.
Certina also fitted the watch with a thick sapphire crystal, with an internal anti-reflective coating, and added heavy-duty gaskets inside the screw-down crown, which is why the DS Action Diver easily meets ISO 6425:2018 certification. These watches have been individually tested for condensation, thermal shock, and pressure.
[toc-section heading=”Four Ways to Wear the Certina DS Action Diver Titanium 38mm”]
One of the coolest things about this release is that Certina didn’t just play it safe. Instead, it dropped four distinct references and the color combinations. Let’s break them down.
Certina DS Action Diver Titanium 38mm Ref. C048.807.44.041.00
This is the blue one. The dial and the scratch-proof ceramic bezel are a rich, oceanic blue, and instead of standard white lume, Certina has flooded the hands and the applied hour markers in neon-orange Super-LumiNova. Against the dark, matte grey of the titanium case, that pop of electric orange looks phenomenal, giving the watch the high-visibility vibe of a coastal rescue helicopter.
[shoppable-product-slim handle=”ds-action-diver-new-ds-concept-titanium-38mm-blue-on-bracelet”]
Certina DS Action Diver Titanium 38mm Ref. C048.807.44.081.00
The gray model is pure stealth. The dial and the ceramic bezel are finished in a dark, brooding gray to match the titanium case, and to keep it looking fresh, experts at Certina used turquoise Super-LumiNova for the indices. For me, this is perhaps the most modern iteration of the three color combinations released earlier this year, giving the watch an industrial edge that looks every bit the part of a modern, tactical tool.
[shoppable-product-slim handle=”ds-action-diver-new-ds-concept-extreme-shock-resistance-titanium-38mm-grey-on-bracelet”]
Certina DS Action Diver Titanium 38mm Ref. C048.807.44.051.01
With this iteration, Certina took a standard deep-black dial and a highly polished black ceramic bezel, then applied hot-pink (almost fuchsia) Super-LumiNova to the markers and hands. On paper, a pink-lumed dive watch sounds wrong, but in the metal, it brings a massive dose of neon cyberpunk energy to the wrist.
[shoppable-product-slim handle=”ds-action-diver-new-ds-concept-extreme-shock-resistance-titanium-38mm-black-pink-accents-on-bracelet”]
Certina DS Action Diver Titanium 38mm (Ref. C048.807.44.051.00)
For the purists among us who want a classic tool watch without any neon fuss, there’s a standard black variant, which Certina released last year. It’s a classic black dial with a black ceramic bezel and standard white lume trimmed in gold accents. It’s the watch you buy when you want one piece to do absolutely everything, from hiking in the mud to sitting in a boardroom. Crucially, across all four models, the date window is placed at 3 o’clock with a white background for maximum legibility.
[shoppable-product-slim handle=”ds-action-diver-new-ds-concept-extreme-shock-resistance-titanium-38mm-black-and-gold-on-bracelet”]
[toc-section heading=”Powermatic 80 Movement”]
The Powermatic 80 is based heavily on the architecture of the ETA C07.611. As the name suggests, it boasts a massive 80-hour power reserve, which means you can take the watch off on Friday evening, leave it on your dresser all weekend, and put it back on Monday morning without unscrewing the crown and resetting the time.
To achieve that power reserve, the engineers at ETA lowered the movement’s operating frequency from 28,800 to 21,600 beats per hour. Inevitably, you’ll find critics complaining that this makes the sweep of the seconds hand slightly less smooth, but dropping the beat rate does drastically reduce the friction on the escapement, and less friction means less wear and tear. This means the movement will run reliably for much longer between service intervals.
Interestingly, Certina fitted the balance wheel with a Nivachron spring, originally co-developed by the Swatch Group (Certina’s parent company) and Audemars Piguet. Designed to fight magnetism, it’s almost completely impervious to everyday magnetism. A standard metal-alloy hairspring, on the other hand, gets magnetized instantly, causing the coils to stick together and making the watch run wildly fast.
[toc-section heading=”Notes on the Bracelet and Clasp”]
The DS Action Diver 38mm Titanium comes on a fully brushed, three-link titanium bracelet, and because this alloy is such a poor conductor of heat, the metal doesn’t feel cold against your skin on a winter’s morning. Certina also included quick-release spring bars on the solid end links, which is a godsend if you want to ditch the metal and throw the watch on a rubber tropic strap or a nylon NATO for the weekend. Basically, you don’t need to go hunting for a spring-bar tool.
The clasp itself is a solid, milled folding unit operated by twin push-buttons and also includes an integrated diver’s extension so you can pop it over a thick wetsuit sleeve. Is it perfect? No. If I’m going to nitpick, I’d love to see it built into the clasp so you could easily expand the bracelet when your wrist swells in the summer heat. But considering the price point of this watch, demanding a complex, ratcheting micro-adjust clasp is probably asking for the moon on a stick. Most importantly, the clasp is secure, slim, and sits flat against the underside of the wrist without adding any annoying bulk.
[toc-section heading=”Conclusions”]
Priced at $1,100 (at time of writing), the Certina DS Action Diver Titanium 38mm is giving you a Grade 2 titanium case and bracelet, a scratch-proof ceramic bezel, a verified ISO 6425 dive certification, and an 80-hour automatic movement equipped with an anti-magnetic Nivachron hairspring. All of this is packaged into 38mm dimensions. If Certina can do all of this for a grand, why isn’t everyone else?
Well, a lot of people will look at this watch and immediately compare it to something more expensive. And honestly? They should. You buy a watch like the DS Action Diver because you’re smart and educated. And while there’s absolutely nothing wrong with so many alternatives demanding four or five times this price tag, the neon pink and turquoise accents on these dive watches are certainly fun and unusual. Certina finally gave us exactly what we asked for. Certina might be the quietest player in the Swatch Group stable, but it has definitely proved that it can run the show if it wants to.
For more information, visit the brand’s website here.
