The Planet Ocean 600M Co-Axial 43.5 Master Chronometer reference 215.90.44.21.99.001 was introduced at BaselWorld 2016, as part of the third generation of Seamaster Planet Ocean models. It is powered by the Master Co-Axial caliber 8900, which is housed in titanium case of 43.5mm. The ceramic bezel has the first 15 minutes inlayed with orange rubbers, while matching details are found on the grey dial.
