Omega 2200.51.00 Planet Ocean SS Black Dial

The Omega Seamaster Planet Ocean reference 2200.51.00 is a commanding example of Omega’s early first‑generation dive watches, featuring a robust 45.5 mm stainless steel case and a striking black dial with bold orange accents. Introduced circa mid‑2000s, it houses the Co‑Axial Caliber 2500 automatic chronometer movement, a landmark in horological innovation developed with George Daniels’ escapement design. Rated to an impressive 600 m (60 ATM), this model underscores Omega’s maritime heritage and technical prowess. The unidirectional black bezel, screw‑down crown, and helium escape valve reinforce its professional dive credentials. With a thickness of approximately 15 mm, it balances substantial presence with wearability. Its steel bracelet complements the tool‑watch aesthetic, while the Co‑Axial movement delivers both precision and durability, offering a circa 48‑hour power reserve. Collectors value this reference for its role in ushering in Omega’s Co‑Axial era and its timeless, functional design. Excellent condition with Omega box and undated papers.