Pre-owned/unworn Omega Seamaster Planet Ocean 600M ref 215.32.46.51.06.001. Since its debut in 2005, the Planet Ocean has represented the boldest and most technically ambitious side of the Seamaster lineup. Larger cases, deeper water resistance, and more experimental materials helped separate it from the standard Diver 300M collection, while chronograph versions like this one take the concept even further with added functionality and even stronger wrist presence. At 45.5mm, this is a modern professional dive watch. The example you see here has a contemporary grey-and-green color scheme, pairing a brushed stainless steel dial with green ceramic subdials, matching green ceramic bezel accents, and a textured green rubber strap. The oversized case, integrated chronograph pushers, and broad hands give the watch a highly technical appearance that feels purpose-built from every angle. Omega also incorporates thoughtful details throughout, including the green “12” marker and brushed finishes that give the watch a more industrial aesthetic compared to traditional polished sports watches. Shop OMEGA Seamaster Collection