This watch is also known as:
2210.51 , 221051 , 22105100 .
This second-generation Co-Axial Planet Ocean is further enhanced by a superlative column-wheel chronograph mechanism. The Seamaster Planet Ocean Chronograph is available in two main color versions, either with orange highlights on the bezel, numbers, sub-dials and push-buttons or a black bezel and push-buttons with white dial details. A third option combines orange and white dial details with a black bezel and push-buttons. All versions of the Planet Ocean chronograph are housed in a 45.5mm case of stainless steel, which is polished and brushed. This model is water resistant to 600 meters.