Omega 232.90.46.21.03.001 (Pre-owned - Good) — USD 5,450 on eBay

Reference 232.90.46.21.03.001 represents the titanium variant within the Planet Ocean 600M collection, distinguished by its lightweight case construction and blue dial configuration. This 46mm model sits within Omega's professional diving watch lineup, offering the full 600-meter water resistance specification in a reduced-weight titanium package. The watch features a 46mm titanium case paired with sapphire crystal and houses an automatic movement. The blue dial coordinates with a rotating unidirectional bezel designed for timing underwater activities. The titanium case material provides corrosion resistance while reducing overall weight compared to steel variants within the same collection. This reference appeals to collectors seeking professional-grade diving capability in a large case format with titanium's weight advantages. The 46mm sizing and blue dial combination positions this model for those preferring substantial wrist presence within the Planet Ocean range. The titanium construction distinguishes it from standard steel variants while maintaining the collection's core 600-meter depth rating.