Omega Seamaster Planet Ocean 600M Chronograph

Omega Seamaster Planet Ocean 600M Co-Axial Master Chronometer Chronograph Reference: 215.30.46.51.01.001

There's a reason the Planet Ocean Chronograph has become a benchmark in serious dive watch collecting. It does everything a tool watch should — and then some. This is the full 45.5mm chronograph variant in stainless steel on bracelet, wearing the blacked-out ceramic dial and bezel configuration that gives it a presence that's genuinely hard to argue with.

Under the caseback sits Omega's Caliber 9900, a METAS-certified Master Chronometer movement that meets the most stringent accuracy and anti-magnetic standards in the industry. The black ceramic unidirectional bezel carries Omega's Liquidmetal diving scale, the sapphire crystal is scratch-resistant front and back, and the whole package is rated to 600 metres. This is a watch built for actual use — it just happens to look exceptional doing it.

The chronograph layout features a small seconds subdial alongside integrated 60-minute and 12-hour counters for clean, intuitive readability. Date sits at 6 o'clock. The stainless steel bracelet includes Omega's extendable foldover clasp — a detail that matters more than most people realize until they've actually needed it underwater.

This example presents in very good condition and comes complete with its original box and papers — a full set for a reference that collectors continue to seek out.