The Omega Seamaster Planet Ocean 600M, reference 215.30.44.21.03.001 is part of the third generation of the Planet Ocean line, which was first introduced in 2005. This specific model, launched around 2016, is defined by its movement, the Calibre 8900. This movement was significant as it was one of the first to be certified as a "Master Chronometer" by METAS (The Swiss Federal Institute of Metrology), which replaced the Caliber 8500. This certification guarantees not only COSC-chronometer precision (0/+5 seconds per day) but also resistance to magnetic fields of up to 15,000 gauss.
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: 8.5 / 10 | Great Condition, Light Visible Wear Production: 2018 Contents: Full-set Genre: Dive Watch
Size: 43.5mm Thickness: 16.09mm Lug Width: 21mm
Case: Stainless steel case, brushed and mirrored finish, light visible wear Bezel: Unidirectional rotating dive bezel, blue ceramic dive insert, light visible wear Dial: Blue gloss dial, applied markers and Arabic numerals Hands: Rhodium-plated broad arrow hands, lumed
Crown: Screw-down crown, with 10 o'clock helium escape valve, light visible wear Crystal: Domed sapphire crystal, light visible wear Bracelet: Stainless steel bracelet, light visible wear Caseback: Transparent sapphire screw-down caseback, light visible wear Movement: Automatic Chronometer Caliber: Co-Axial 8900