Pre-owned Omega Seamaster Planet Ocean ref 217.32.42.21.01.002 (2025). The Planet Ocean was introduced in 2005 as a more technical counterpart to the standard Seamaster Diver 300M, with higher depth ratings and a slightly more robust overall build. This version comes in a 42mm stainless steel case, paired with a legible, matte black dial. The blue ceramic bezel adds a bit of contrast, with a white enamel diving scale that stays sharp over time. There’s also a subtle mix of materials here, including a titanium inner bezel ring and caseback, which helps balance durability with weight. The dial layout is straightforward with Arabic numerals at the key positions, along with rhodium-plated hands and luminescent markers that do exactly what they’re supposed to in low light. It’s paired here with a black rubber strap, making sure it’s comfortable and practical. Inside is the Master Chronometer caliber 8912 with strong accuracy, anti-magnetic resistance, and a solid power reserve. Shop OMEGA Seamaster Collection