The Omega Seamaster 300 ref. 210.30.42.20.01.010 is a modern dive watch with a 42 mm stainless-steel case, black ceramic bezel and black dial, powered by Omega’s Master Chronometer movement. Its vintage-inspired design combines broad arrow hands, recessed hour markers and a clean, highly legible layout, while the fine steel Milanese mesh bracelet gives it a more refined, distinctive character than the standard three-link bracelet.