Omega Seamaster Planet Ocean 600m Dark Grey GMT Review

For their latest Planet Ocean, the Dark Grey GMT, Omega have introduced a new case material in the form of Silicon Nitride (Si3N4). It’s an ultra-light, ultra-durable ceramic that they’ve used in small quantities on the previous 600m collections, but with the Dark Grey GMT it’s used for the main body of the 45.5mm case for the first time. Not stopping there on their quest for lightness, Omega have also used a titanium movement, the calibre 8906 Ti, bringing the watches weight down to just 107 grams (without strap) despite its chunky proportions. Join us as we get hands on with this release to see how it feels on the wrist.