This Omega Seamaster Planet Ocean 600M Co-Axial Chronograph is part of the second generation of the Planet Ocean collection, which Omega first launched in 2005 as a more high-performance extension of the Seamaster line. This specific reference was notable for being one of the first Planet Ocean models to be constructed completely from Grade 5 titanium, including the 45.5mm case and bracelet, making it significantly lighter than its steel counterparts despite its large dimensions and 19.5mm thickness.
A primary technical fact of this watch is its movement, the Omega Co-Axial Caliber 9300. Introduced in 2011, the Caliber 9300 was Omega's first in-house chronograph movement to integrate the Co-Axial escapement. It is a COSC-certified chronometer featuring a column wheel, a silicon balance spring for high anti-magnetism, and a 60-hour power reserve.
Founded in 1848 by Louis Brandt in La Chaux-de-Fonds, Switzerland, the company that would become Omega established its identity with the 1894 introduction of the 19-ligne 'Omega' calibre. This movement was a landmark in industrial watchmaking, utilizing interchangeable components to streamline production and repair—a philosophy of accessible precision that continues to define the brand.
Omega cemented its reputation for robust accuracy through its role as the Official Timekeeper for the Olympic Games since 1932 and, most famously, through the Speedmaster Professional's flight qualification by NASA, which culminated in its journey to the Moon.
In the modern era, the brand's most significant contribution has been the industrialization of the co-axial escapement, an invention by Dr. George Daniels that fundamentally reduces friction within the calibre for superior long-term chronometric stability. Typified by purpose-driven design, Omega's collections—from the abyssal-depth Seamaster to the iconic Speedmaster—are archetypes of the professional tool watch, balancing legible aesthetics with advanced material science and anti-magnetic properties through its Master Chronometer certification.
Overall Grade: 9 / 10 | Mint Condition, Light Visible Wear Production: 2018 Contents: Full-set Genre: Sports Chronograph
Size: 45.5mm Thickness: approx. 19.3mm Lug Width: 22mm
Case: Grade 5 titanium, brushed sides, mirrored bevels, light visible wear Bezel: Unidirectional dive bezel, blue ceramic insert, light visible wear Dial: Blue gloss dial, applied markers, sunken sub-dials Hands: Rhodium-plated broad arrow hands, lumed
Crown: Screw-down crown and pushers, with 10 o'clock helium valve, light visible wear Crystal: Domed sapphire crystal, light visible wear Bracelet: Titanium bracelet and clasp, light visible wear Caseback: Transparent sapphire screw-down caseback, light visible wear Movement: Automatic Chronograph Caliber: Co-Axial 9300