Two versions make for a colorful and monochrome option with this Omega Seamaster novelty.
There is something immediately captivating about a rugged-looking luxury watch. It exudes all the quality, exclusivity, and bewildering want-factor we associate with luxury — and combines all that with a go-anywhere, do-anything attitude that whispers in our ears: “Let’s go on an adventure.” Watches arguably don’t get any more adventure-ready than dive watches, and no other watch is better equipped for world travel than a worldtimer. Want to explore the world? Omega now well and truly has you covered.

What is a worldtimer watch exactly and how does it work? Invented by Louis Cottier in 1948 and patented in 1950, the worldtimer watch display relies on a 24-hour ring surrounded by 24 (sometimes more) location names associated with that given timezone. The 24-hour ring is driven by the movement and as its indications align with the location names, the relevant hour can be read accurately for that particular place. The minutes remain indicated by the minute hand of the traditional dial.
It is a beautifully elegant solution that looks complicated — a prerequisite for the appeal of many luxury watches, just think of all the other complex-looking faces that have attained huge popularity among luxury watch shoppers, such as the perpetual calendars, chronographs, and logarithmic scales applied to deservedly famous watches by Omega, IWC, Breitling, and others.

This particular worldtimer movement and dial design for Omega debuted in the Aqua Terra 150M in 2017. While the Aqua Terra is already a dependable watch — with its 150m water resistance rating and extremely high resistance to magnetic fields — the brand presents it in a yet more rugged package for 2025.
The Seamaster Planet Ocean quadruples the water resistance of the Aqua Terra and doubles that of the Seamaster with a truly breathtaking rating of 60 bar (equivalent to the pressure experienced 600 meters or 2,000 feet below the surface). In fact, this could very well make for a worldtimer that goes deeper than any other ever before.

The 45.5mm-wide case is crafted from black ceramic on both versions, with an intricate dive-time bezel with a frosted recessed area and high-polished raised numerals and notches. Even the crowns for the movement and the helium escape valve (at 10 o’clock) are made from ceramic, known for its outstanding resistance to scratches.
The case is very thick at 17.4mm, but that is not a new challenge to Omega who will have used their experience in lug and bracelet design to make it wear snugly and comfortably nevertheless. Speaking of the bracelet, the Seamaster Planet Ocean Worldtimer watches come fitted with a rubber strap with contrast stitching that matches the colour theme of the dial. More importantly, the strap is deeply integrated into the lug and case design, a solution that we know yields greater wearing comfort when compared with traditional straps and their straight design.

Protected by this beast of a case lives the Omega Calibre 8938, a self-winding movement that is resistant to magnetic fields reaching 15,000 gauss. Beneath its elaborately finished plates and bridges, we find two mainspring barrels that work together to power the Seamaster Planet Ocean Worldtimer through its 60-hour power reserve.
Our take? Up until now, worldtimers used to be all but traditional-looking timepieces in slender cases, usually crafted from precious metals, and it is exceedingly cool to see Omega break down those barriers and introduce this old-school and beautiful complication to such a highly strung, go-anywhere collection as the Planet Ocean — or “PO” as you will see Omega fans reference it. It is a big and bold watch that will wear large on the wrist, keep that in mind, and be sure to visit an Omega boutique to try one on and see the fit for yourself. The rest will likely be love at first sight.
Visit the official Omega website to learn more.
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Last Updated on March 17, 2025 by Editorial Team

David, from Hungary, is a dedicated writer focused on haute horologies. His expertise shines through in his contributions to internationally notable watch magazines, where he delves into the intricacies and artistry of high-end watchmaking.