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Omega Seamaster Planet Ocean Ultra-Deep 75th Anniversary Maps the Ocean Floor

Omega Seamaster Ultra Deep 6000m Co-Axial Master Chronometer 75th Anniversary Summer Blue

Omega’s motto/slogan/overarching theme for their Seamaster 75th anniversary celebrations is “Precision at Every Level”. It’s a nod to the fact that the Seamaster encompasses watches of almost every significant milestone in water resistance rating from 150m to 6,000m. When it comes to the latter, we’re talking about the Omega Seamaster Planet Ocean Ultra-Deep, which has received a new 75th anniversary model.

As a sign of how fast time flies, if you asked me when I thought the Ultra-Deep was originally launched, I would’ve told you earlier this year. However, in reality, it was more than a year ago back in the spring of 2022. Perhaps the time feels shorter because a year and a quarter is still not enough time to get over how bad the name O-MEGASTEEL is for the hyper tough steel alloy that the 45.5mm case is made from. It’s the strength of this material that helps ensure the 6,000m water resistance rating. (Is it too soon to say that this watch would’ve survived a trip to the Titanic?)

Omega Seamaster Ultra Deep 6000m Co-Axial Master Chronometer 75th Anniversary Summer Blue

In keeping with the other 75th anniversary models, such as the Diver 300m, the main style focus of the new watch is centred on the aquatic themed dial. The Ultra-Deep is unique in that while the majority of the celebratory collection feature abstract representations of the diffuse state of light beneath the ocean’s surface, it shows a detailed, engraved oceanographic map of the Challenger Deep ocean trench – the location where the Ultra-Deep concept watch first made headlines in 2019 before its production successor emerged in 2022.

Omega Seamaster Ultra Deep 6000m Co-Axial Master Chronometer 75th Anniversary Summer Blue

Omega Seamaster Ultra Deep 6000m Co-Axial Master Chronometer 75th Anniversary Summer Blue

There’s actually an easter egg hidden on the dial that’s a reference to that original record-breaking dive. If you shine a UV light on the dial, it will reveal more details about the exact location of the dive as well as the phrase “Omega Was Here”, like some school boy graffiti. Whether you think it’s charmingly cheeky or a little bit childish, it’s still fun.

I do want to dwell on the dial for a little bit longer just to let it sink in how cool it really is. An exact replica of the ocean floor that was mapped using over 1 million sonar points. This is some Grand Seiko level precision and beauty. It reminds me of the Black Stream Diver, which is quietly one of my favourite dials on any watch in terms of the texture and pattern.

Omega Seamaster Ultra Deep 6000m Co-Axial Master Chronometer 75th Anniversary Summer Blue
Omega Seamaster Ultra Deep 6000m Co-Axial Master Chronometer 75th Anniversary Summer Blue

Beneath the surface of the Omega Seamaster Planet Ocean Ultra-Deep 75th Anniversary is the Calibre 8912. It’s an automatic movement with 60-hour power reserve and METAS-certified master chronometer status. As with the other anniversary watches, the movement is protected by a solid caseback with a commemorative engraving of Poseidon with two seahorses, referencing both the original and current Seamaster logos.

Omega Seamaster Ultra Deep 6000m Co-Axial Master Chronometer 75th Anniversary Summer Blue

In terms of price, it’s £12,000. For that money you could have any combination of two watches from the 75th Anniversary Diver 300m, Seamaster 300, Aqua Terra, or Planet Ocean 600m. So, you really do have to weigh up whether the Ultra-Deep is worth it and to be honest, I actually think it might be. The incredible depth rating, the incredible story connected to the model and above all, that absolutely killer dial. It’s also worth noting that it’s not even the most expensive new Omega either, that honour goes to the Ploprof.

Price & Specs:

  • Model: Omega Seamaster Ultra Deep 6000m Co-Axial Master Chronometer 75th Anniversary Summer Blue
  • Ref: 215.30.46.21.03.002
  • Case/dial: 45.5mm diameter x 18.1mm thickness, O-Megasteel (stainless steel) case, blue dial
  • Water resistance: 6000m (600 bar)
  • Movement: Omega calibre 8912, automatic, 38 jewels
  • Frequency: 25,200 vph (3.5 Hz)
  • Power reserve: 60h
  • Functions: Hours, minutes, seconds
  • Strap: O-Megasteel (stainless steel) bracelet
  • Price/availability: £12,000

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About the author

Michael Sonsino

As Digital Editor for Oracle Time, Michael needs an eye for detail, which makes it a good thing that his twin joys in life are miniatures and watches. He's a lifelong fan of fine timepieces, especially those of a more historic nature - if it has a twist of Art Deco, all the better. Recent purchase: Seiko Prospex 1959 Alpinist Modern Re-Interpretation. Grail watch: Vacheron Constantin Historiques American 1921.