Omega Unveils the Fourth Generation of the Seamaster Planet Ocean
The Seamaster line has been a cornerstone of Omega’s identity since 1948, evolving into multiple sub-collections over the decades. Among them, the Seamaster Planet Ocean is the youngest yet arguably the most technically focused. Introduced in 2005, it has since undergone two major redesigns. To mark the twentieth anniversary of the line, Omega now presents the fourth generation, a collection that breaks decisively from the past and reimagines the character of the brand’s most robust diver.
Source: monochrome-watches.com
A New Design Direction Inspired by the Eighties
While earlier generations of the Planet Ocean were often viewed as an enhanced interpretation of the Seamaster Diver 300M, all linked by design cues inherited from the late 1960s, the new collection represents a distinct conceptual shift. Omega introduces seven references with more angular architecture, stronger lines and revised proportions. The brand cites Seamaster models from the 1980s as the primary influence for this reorientation.
One of the most notable changes is the removal of the helium escape valve, a longstanding hallmark positioned at ten o’clock on previous models. The lyre shaped lugs characteristic of Omega dive watches have also been retired. A titanium ring now surrounds the crystal from the inner side of the bezel. This element has its roots in the earliest Planet Ocean models of 2005 as well as vintage Seamaster 300 watches from the 1960s, though in the new generation it contributes structurally to the overall sealing system. Water resistance remains at 600 metres, preserving the collection’s professional specification.
Source: monochrome-watches.com
Slimmer Proportions and a More Compact Wear
A return to the original 42 millimetre diameter will please long term admirers of the line. The case now measures 13.8 millimetres in height, a reduction of 2.3 millimetres compared with the previous generation. The profile is further streamlined by the adoption of a flat sapphire crystal. The case construction is more angular, while the bracelet attaches through a shortened first link that improves the ergonomic flow from case to wrist. Taken together, the changes suggest that the latest Planet Ocean models will sit more comfortably on a wide range of wrists.
Source: monochrome-watches.com
A Revised Bezel and a Familiar Dial Identity
The bezel has undergone a complete redesign. It features a more pronounced grip pattern and a broad ceramic insert with a simplified diving scale. Available colours include black, blue and the signature orange that has accompanied the Planet Ocean identity since its launch in 2005.
The dial presents an evolution rather than a departure. The surface is matte black and retains the signature broad hands and trapezoidal hour markers that have long defined the collection. Both elements are slightly enlarged and treated with Super LumiNova. Arabic numerals placed at the cardinal points maintain the established Planet Ocean layout. The numerals are now more squared in outline, with a sharper graphic treatment that echoes the geometry of the case and bracelet. Depending on the variant, they are finished either with lacquer or with a rhodium coating. The diving scale is applied in white enamel. The applied Omega emblem remains, while all other inscriptions are printed. The date window has been removed entirely, giving the dial a cleaner and more symmetrical appearance.
Source: monochrome-watches.com
Calibre 8912: Mechanical Continuity Beneath a New Exterior
Despite the extensive redesign of the exterior, the movement remains familiar. The new models are powered by Omega’s Master Chronometer calibre 8912, previously seen in the Ultra Deep versions of the Planet Ocean family. The calibre features a coaxial escapement, a frequency of 25200 vibrations per hour and a dual barrel system that provides a power reserve of sixty hours. The independently adjustable hour hand allows for quick time zone changes without halting the movement.
Source: monochrome-watches.com
Bracelets, Straps and Wearing Experience
The watches are offered on either a stainless steel bracelet or a rubber strap. The straps attach through a steel end link that enhances the integrated aesthetic. One potential drawback is the absence of a micro adjustment mechanism on the folding clasp of the strap versions.
The redesigned bracelet is flat, three linked and features brushed outer links with polished inner links. It is thinner than previous Planet Ocean bracelets and appears visually integrated due to its articulated first link. The clasp offers six positions of adjustment and includes a diving extension suitable for wearing the watch over a wetsuit.
Source: monochrome-watches.com
Pricing and Availability
The fourth generation of the Seamaster Planet Ocean joins the permanent collection. Depending on the choice of bezel colour and strap or bracelet configuration, prices range from 6700 to 7400 Swiss francs before taxes.
