Omega Seamaster Planet Ocean 600M

Overall Condition: Excellent condition overall. Case shows only faint signs of wear associated with light use and handling. Dial and handset are excellent. Factory strap and deployant are in great condition.

There are Planet Oceans, and then there are Planet Oceans with a little personality. This Omega Seamaster Planet Ocean 600M Co-Axial Chronograph pairs serious dive-watch engineering with a fantastic shot of orange, a color that has been part of the Planet Ocean vocabulary since the collection debuted in 2005. Against the black dial, the orange aluminum bezel and matching accents give the watch a distinctly sporty, almost racing-inspired character.

Even better is the size. At 37.5mm, this is a surprisingly compact Planet Ocean, particularly considering everything Omega packed inside. The stainless-steel case surrounds a black dial with luminous applied indexes, three chronograph registers, a date display, and the familiar broad-arrow hands. The orange dive bezel provides the visual punch, while a helium escape valve at 10 o’clock and an extraordinary 600 meters of water resistance remind you that beneath all the color is a very serious dive watch. This example is paired with a complementary orange leather strap.

Power comes from Omega’s self-winding Calibre 3313, a Co-Axial column-wheel chronograph movement with a 52-hour power reserve. A domed sapphire crystal with anti-reflective treatment on both sides completes the package.

Originally marketed as a ladies’ model, the 37.5mm case feels particularly relevant today, as collectors rediscover smaller sports watches regardless of the category printed in an old catalog. Add the original Omega warranty cards, and this is a compact, colorful, and slightly unexpected take on one of Omega’s modern dive-watch signatures.