Description: Omega Seamaster Planet Ocean 600M Pre-owned Omega Seamaster Planet Ocean 600M ref 215.23.46.51.03.001 (2022). The Planet Ocean collection was introduced in 2005 as OMEGA’s answer to modern professional dive watches, featuring greater water resistance, larger cases, and more robust movements than the standard Diver 300M. This example embraces that tool-watch foundation but adds a more elevated finish with a mix of stainless steel and Sedna gold. The 45.5mm