Omega · Family: Seamaster Planet Ocean Ultra Deep
The Omega Seamaster Planet Ocean Ultra Deep 215.30.46.21.03.001 is the O-MegaSteel, bracelet-equipped execution of the brand's extreme dive watch, introduced in 2022 with a 6,000m water-resistance rating. It runs the in-house Calibre 8912 with roughly 60 hours of power reserve and 15,000-gauss magnetic resistance. Cazador has no verified price observations yet. Its standout detail: a 45.5mm O-MegaSteel case — Omega's own steel alloy — paired with a blue-to-black gradient dial and a polished black ceramic bezel.
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The Seamaster Planet Ocean Ultra Deep family emerged as Omega's answer to the race for extreme water resistance among the major Swiss dive-watch makers, with a first titanium generation built for record-setting conditions. In 2022, Omega widened the line with an O-MegaSteel execution — a proprietary steel alloy the brand uses across several sport-watch pieces — offering the same technical profile in a more accessible material than titanium.
The 45.5mm-wide, 18.12mm-thick case, with a 51.95mm lug-to-lug, retains a certified water resistance of 6,000 meters — 600 bar — a figure well beyond recreational or even technical diving standards, placing the watch within the category of professional saturation-diving instruments. The screwed caseback, finished with a combination of polishing, brushing and sandblasting, dispenses with a helium escape valve thanks to the design of the crystal, crown and caseback itself.
This specific reference, 215.30.46.21.03.001, carries a polished black ceramic bezel with a 60-minute scale in LiquidMetal — a liquid-metal alloy Omega uses for bezel graduations — and a lacquered, transparent dial with a blue-to-black gradient effect, with 18k white gold indexes and Arabic numerals treated with Super-LumiNova.
Inside is the Calibre 8912, an in-house, Master Chronometer-certified movement combining a co-axial escapement with a silicon balance spring, two barrels mounted in series for roughly 60 hours of power reserve, and a second-time-zone function alongside central hours, minutes and seconds. Magnetic resistance of 15,000 gauss, higher than most mechanical watches on the market, rounds out a profile built for extreme conditions.
The O-MegaSteel bracelet features a patented foldover clasp with an extension system to fit over a wetsuit, and the watch is also offered on a structured rubber strap for those who prefer a lighter option.
Both share the Ultra Deep family's overall technical profile, but the O-MegaSteel version uses Omega's proprietary steel alloy instead of titanium, placing it in a different price segment within the collection.
It's certified to a water resistance of 6,000 meters (600 bar), far beyond a standard recreational dive watch.
Roughly 60 hours, thanks to its two barrels mounted in series.
Yes. The Calibre 8912 is Master Chronometer certified with resistance to magnetic fields of up to 15,000 gauss.
Cazador has no verified price observations for this reference yet and does not publish estimates without its own data.
Yes, besides central hours, minutes and seconds, the Calibre 8912 includes a second-time-zone function.
Polished black ceramic, with a 60-minute scale applied in LiquidMetal, a liquid-metal alloy Omega uses for its bezel graduations.