OMEGA Seamaster Planet Ocean 600M

The Omega Seamaster Planet Ocean 600M, reference 217.30.42.21.01.001, is a dive watch with a 42 mm steel case. The case measures 13.79 mm thick with a lug-to-lug span of 47.5 mm. A unidirectional rotating bezel surrounds the black dial, set under a flat sapphire crystal with anti-reflective treatment on both sides. The self-winding calibre 8912 has a Co-Axial escapement and a freesprung balance with silicon balance spring, and it holds Master Chronometer certification from METAS with resistance to magnetic fields up to 15,000 gauss. Power reserve runs to 60 hours, and the movement also has a time zone function. A steel bracelet with a foldover clasp and diver extension completes the watch, which the screw-down crown helps hold to its 600 metre water resistance rating.