Omega Seamaster Planet Ocean ref 232.90.42.21.03.001. Are you in the market for an affordable titanium Omega? Look no further than the . 232.90.46.21.03.001 for sale here. This edition of the famed Seamaster Planet Ocean presents the case and bracelet in tough yet lightweight Titanium. It also features a very desirable blue dial and matching blue ceramic uni-directional diver’s bezel. This feature set is incredibly popular among the modern watch collector and is sure to capture the attention of even the most experienced Omega aficionados. The diver also boasts a robust size and weight measuring over 45mm in diameter and water resistance up to 600 meters/2 000 feet.