Seamaster Planet Ocean 600M Co-Axial 45.5 Master Chronometer Chronograph Deep Black Orange

The Omega Seamaster Planet Ocean 'Deep Black' was introduced in June 2016. It is the first of Omega's Planet Ocean watches to feature a case almost entirely crafted from high-tech ceramics, including its unidirectional bezel and caseback - the latter fitted with a new patented 'Naiad' lock to have its engravings properly lined up at all times. The 215.92.46.51.01.001 is a 2017 addition. Instead of the GMT caliber 8906, it is now powered by the caliber 9900 Master Chronometer Chronograph movement.