Omega’s Planet Ocean Enters Its Fourth Generation With a Sharper, Slimmer Profile

Omega has brought forth the fourth-generation evolution of their Planet Ocean dive watch, and how they chose to debut the piece is very much an indication of their vision for the next wave of watch buyers.

The Planet Ocean has always been a serious dive watch, appreciated as a sturdy tool watch with distinctive details such as bright orange bezels and hydrogen escape valves. This fourth-generation version carries forward the brand’s technical expertise but introduces a case design that aligns more closely with the modern watch-buying landscape—something more adaptable than the traditional tool-watch archetype.

The new model is slimmer at 13.79 millimeters versus the previous 16.09 millimeters. Combined with a titanium caseback and a flat sapphire crystal, the watch now slips more easily under a suit cuff, yet the technical capabilities remain intact. It can dive to the same depths as its predecessors, but the integration of an inner titanium ring eliminates the need for an external helium escape valve.

The watch now features a ceramic bezel—something that was especially difficult to achieve in Omega’s distinctive orange. Buyers can opt for the iconic orange bezel, a deep blue, or a classic black.

One of the most striking updates is the case architecture and finishing, and how these flow into the stainless-steel bracelet offered alongside the orange and black rubber straps. The case has sharper, more defined lines, while the bracelet presents a more integrated look, with varied finishes and bevels. Despite this refinement, it still includes a six-position size adjustment system and a diving extension compatible with wetsuits.

The new Planet Ocean represents a different approach to a dive watch—still technically capable, yet more versatile and suitable for varied settings. During the launch at the Yifang Art Museum in Chongqing, younger guests responded strongly to the design, far more than they might have to a conventional tool-watch aesthetic. It offers flexibility and everyday usability, while maintaining the heritage and engineering expected of the brand.

Choosing Chongqing, China as the launch site was fitting, given the city’s blend of eras, layers, and technologies. Interestingly, the watch also echoes the lesser-known early history of Omega dive watches, beginning in 1932 with The Marine—a rectangular watch housed in a two-part case that protected the crown at 12 o’clock. It is a classic example of a technical watch that still embraced the elegance of its time.

Collectors also see parallels with the 1981 Seamaster 120, nicknamed the MAYOL after Jacques Mayol, who that year achieved a 101-meter free dive on a single breath. His watch was a slim, integrated-bracelet quartz model that captured the design language of the early ’80s. While many compare it to the Constellation of that era, the Mayol actually predates the Constellation Manhattan.

Viewed alongside all four Planet Ocean generations, the 2025 model stands out for its sleekness and clarity of form, even with its bold bezel. The result is a watch positioned to resonate with a broader audience and signals how closely Omega remains attuned to the preferences of younger buyers.