Pre-owned Omega Seamaster Aqua Terra 150M ref. 220.12.41.21.03.008 (2025) is part of Omega’s “Summer Blue” series, released in 2023 to celebrate 75 years of the Seamaster. Omega created a gradient system across the entire Seamaster lineup, with each shade of blue reflecting the model’s depth rating. The deeper the water resistance, the darker the dial. On the Aqua Terra 150M, it features a lighter, sun-brushed blue that fades subtly toward the edges, a lovely homage to its place in the family. The 41mm symmetrical steel case has the Aqua Terra’s clean, balanced profile, paired here with an integrated blue rubber strap with a polished steel end link. The teak-pattern dial is PVD-treated and varnished, with rhodium-plated hands and indices filled with a pale blue Super-LumiNova that feels a little different from the standard white lume. Even the date wheel at 6 o’clock is color-matched. Flip it over and there’s a commemorative caseback with Poseidon. Shop OMEGA Seamaster Collection