Description: Omega Seamaster Planet Ocean  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