Pre-owned Omega Seamaster Planet Ocean 600M ref 215.32.44.21.01.002 (2022) brings the rugged depth rating and clean lines of the Planet Ocean family into a wearable 43.5mm format. The brushed stainless steel case is paired with a black ceramic bezel finished with a Liquidmetal diving scale, giving the watch that crisp, high-contrast look. The dial is especially striking, a sand-blasted “gunmetal” grey treatment that shifts subtly with the light, decorated with a date at 3 o’clock and understated beige and white text. PVD stainless steel numerals, hands, and hour markers keep everything cohesive, while Super-LumiNova adds a warm nighttime glow. The integrated dark grey rubber strap feels sport-ready but refined, complete with textured detailing and matching stitching. Inside is the Co-Axial Master Chronometer caliber 8900. Shop OMEGA Seamaster Collection