Omega Seamaster Planet Ocean watches

The Omega Seamaster Planet Ocean is Omega's 600-metre dive watch, a step above the 300-metre Seamaster Diver 300M. Omega first released it in 2005 in 42 mm and 45.5 mm cases, with the Co-Axial calibre 2500 and a manual helium escape valve at 10 o'clock.

A Liquidmetal edition of 1,948 pieces brought a ceramic bezel and glossy ceramic dial in 2009. From 2011 Omega added grade 5 titanium cases and a 37.5 mm size and replaced the calibre 2500 with the in-house calibre 8500; a GMT with a 24-hour bezel and calibre 8605 followed in 2013. In 2016 the three-hand models moved to 43.5 mm with the METAS-certified Master Chronometer calibre 8900 and to 39.5 mm with calibre 8800, and the Deep Black ceramic models arrived at 45.5 mm. A concept Ultra Deep, attached to the side of Victor Vescovo's submersible, went down 10,928 metres in the Mariana Trench in 2019, and the production Planet Ocean Ultra Deep followed in 2022 with a 6,000-metre rating.

The earlier three-hand watches come at 37.5, 42 and 45.5 mm, the Master Chronometer models at 39.5, 43.5 and 45.5 mm, and the Ultra Deep Professional measures 52 mm. Beyond steel there are titanium, red gold, Sedna gold, platinum and ceramic cases, and some models trade the dive bezel for a gem-set one or add a mother-of-pearl dial.

The special editions include the Liquidmetal, the James Bond Casino Royale, Quantum of Solace and Skyfall pieces of 5,007 each, the Michael Phelps chronograph of 280, and unique platinum GMTs named for Abu Dhabi, Dubai, Oman and Qatar.