The Omega Seamaster Planet Ocean 600M reference 217.30.42.21.01.003, introduced in 2025, represents the bold fourth-generation reinterpretation of Omega’s professional dive heritage. Featuring a 42 mm stainless steel case with a slimmer 13.79 mm profile and angular, architectural lines, it sheds the helium escape valve for a cleaner silhouette while maintaining a robust 600 m water resistance. The matte black dial is punctuated by four orange Arabic numerals and rhodium‑plated hands and indexes filled with Super‑LumiNova, harmonizing with a polished orange ceramic bezel and grade 5 titanium inner ring for enhanced visibility and technical flair. Powered by the METAS‑certified Co‑Axial Master Chronometer calibre 8912, this automatic movement delivers anti‑magnetic performance to 15,000 gauss, a twin‑barrel architecture, and ~60‑hour power reserve. The integrated brushed and polished stainless steel bracelet features a fold‑over clasp with rack‑and‑pusher adjustment and diver extension, reinforcing its tool‑watch credentials. This model stands out as a compelling evolution of the Planet Ocean line—combining slimmed-down ergonomics, modern materials, and professional-grade performance in a design that resonates with both collectors and serious divers. Like New with Omega box and papers dated 2025.