By Brent Robillard

Evolution Meets Identity

The new Omega Seamaster Planet Ocean 4th Generation might be the most significant reset the PO line has ever seen. By slimming the case, returning to a 42 mm diameter, and sharpening the entire design language, Omega has repositioned its flagship diver as something far more balanced: a modern, technically ambitious tool watch that finally wears like a watch meant for everyday life—not just for the pages of a spec sheet.

I wrote about the launch of the 4th Generation last week, so if you are looking for hard specs and history, please go there for more. Here, however, we’re going to discuss wrist experience and chew on some of the babble which has naturally arisen since its release.

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First Impressions in the Wild

I wore the new PO to a gathering of more than one hundred and fifty watch and whisky enthusiasts last weekend. And despite the divisive chatter online—where the new PO has already been dissected, debated, and memed into oblivion—not a single person who saw the watch in the metal was anything but impressed.

You might chalk that up to politeness. After all, who criticizes the watch someone walked into the party wearing?

Right?

Wrong.

You clearly haven’t been to a RedBar event lately. If there’s a room on earth where someone will gladly tell you exactly what they think of your watch, it’s there.

One gentleman—who happened to have a watch roll with him—pulled out his first-generation Planet Ocean. He set the two side by side, turned them in the light, tried them back-to-back on wrist, and simply said:
“I think I’m calling my AD on Monday.”

That moment confirmed what I was already starting to suspect: this is a watch you need to see up close, to wear, to live with a bit, in order to appreciate what Omega has achieved here.

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Wearability: The Big Shift

For wearability and technical chops, the 4th Gen PO ticks many boxes. If you’ve ever found previous Planet Ocean iterations too bulky, too heavy, or a little too literal in their “professional diver” stance, this new version addresses that head-on.

The case is slimmer, the wrist presence tighter, and the 47.5 mm lug-to-lug is reduced even further thanks to how the lugs have been shorn off and recessed. Add the female end-links on the bracelet and the PO now drapes around the wrist with ease—even my 6¾-inch wrist.

And yet, because of the new bezel design, it feels larger than it is.

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Believe it or not, one of the best watches I’ve ever worn is the Omega Ultra Deep. Yes, it’s massive and wildly impractical as a daily driver, but it contains something elemental—a sense of unrestrained capability. With the 4th Gen PO, Omega has somehow captured that lightning in a much smaller bottle.

Call it the Ultra Deep bezel, or even the Ploprof bezel. It’s beefy, architectural, and impossibly satisfying. The visual weight fools the eye into thinking the case is larger, while the actual dimensions keep the watch perfectly wearable.

The bracelet, meanwhile, is excellent. I haven’t tried any of the straps yet, but the on-the-fly micro-adjust and the stout diver’s extension make the bracelet the configuration I’d likely choose anyway.

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Technical Backbone

Inside beats the calibre 8912: METAS-certified, anti-magnetic, durability-focused, and very much in keeping with Omega’s modern movement philosophy. In terms of finishing, materials, tolerances, and overall construction, there’s really no weak link here. This movement is built to last, and its timekeeping reflects that ambition. It is, by the way, the same movement we find in the Ultra Deep, the Ploprof, and a host of other watches in the Seamaster Collection.

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What’s Lost, What’s Gained

There are trade-offs, and they’ve been hotly discussed.

Omega removed the helium escape valve (HEV), dropped the date complication, and switched to a solid titanium case back rather than an exhibition display. For long-time PO fans, especially those attached to the visual mythology of the line, these omissions may feel like a softening of the identity. I get that.

But—and I realize I may be alone here—I do not believe the soul of the Planet Ocean is tied to a helium escape valve.

Remove it from the Seamaster Diver 300M and then we have a discussion. But for the Planet Ocean—Omega’s true working diver—the evolution toward more robust engineering matters more than any single design cue. And that evolution is obvious here. Experiments with the Ultra Deep have directly informed this new PO, not only aesthetically but functionally, particularly through the titanium ring system and redesigned case back.

This is not regression. It’s refinement, learned from the most extreme diver Omega has ever built. And frankly, I don’t think I’ve ever checked the date while on a dive, so…

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Where the New Planet Ocean Fits

Of course, pricing is the inevitable sticking point—though Omega is hardly alone in this. The IWC Ingenieur, for all its charm, has set the bar uncomfortably high for “specs-agnostic pricing.” In the Omega catalogue, the Planet Ocean sits exactly where you’d expect: above the lower-spec Seamaster Diver 300M and the Seamaster 300, and above standard Moonwatches, but below the Ultra Deep and well below anything in precious metal.

The 4th Gen PO is not a budget watch. It was never meant to be. But it is, in my view, positioned appropriately for what it brings to the table.

That being said, if you want to discuss watch pricing in general, it has become somewhat of a runaway train. Brands like Omega—and others—are moving from aspirational to luxury in the true sense. And that’s not easy on the wallet.

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Quibbles

For me, there are two areas where I may have gone in a different direction with this watch. The first is the polished line of centre links on the bracelet. Let me just state for the record, that this in no way detracts from my appreciation for what Omega has created here. If anything, the PCL offers a hint of luxury. Still, for me, I might have gone full satin brushed.

The second is the case back. I know many are lamenting the disappearance of the exhibition sapphire, but I am not one of those. I like the move to solid titanium. Functionally, it’s part of the reason this new PO is so much slimmer without a ding in its water resistance. However, I would have preferred an embossing of the hippocampus like we saw in the 1st Generation (2005) and transitional models (2009). The engraving here feels a little flat.

Final Thoughts

Omega’s 4th Generation Planet Ocean is an evolution in every important sense: wearability, engineering, materials, and identity. It preserves the watch’s 600-metre capability and movement pedigree while refining its form into something contemporary, purposeful, and comfortable.

It may challenge the sensibilities of vintage-PO purists. It may spark debate. But it also marks a clear point in the line’s story where Omega steps back, reassesses, and asks not “How do we keep doing what we’ve been doing?” but “What should the Planet Ocean be in 2025?”

This watch is their answer.

And after wearing it out in the real world—not in a press room, not in a forum, but among enthusiasts—I can tell you: the answer is compelling.

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About the Author

Brent Robillard is a writer, educator, craftsman, and watch enthusiast. He is the author of four novels. You can follow him on Instagram.

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