“Time! The corrector when our judgments err.”
~ Lord Byron

Since 1932, when Omega presented the Marine – the world’s first watch designed for divers – Omega has been synonymous with the professional dive watch. And when the now legendary Seamaster range was launched back in 1948, it further confirmed Omega’s position among sailors and divers as the tough and reliable watch of choice.

An Omega watch has been the wrist of many an adventurer, right from the very early days of ocean exploration. Commander Yves Le Prieur, the inventor of Scuba, wore an Omega. Jacques Cousteau famously wore an Omega Seamaster PloProf, and Jacques Mayol – the legendary freediver known as The Dolphin Man’ – also sported an Omega Seamaster on his record-setting dives.

It was with this legacy in mind that Omega back in 2005 launched a new collection of dive watches in the Seamaster range, the Omega “Seamaster Planet Ocean” series, which pays homage to Omega’s dive watch heritage, while also enhancing the designs with state-of-the-art technology and contemporary styling to create an entirely new dive watch that has since become a modern classic.

When OMEGA launched the Co-Axial escapement in 1999, the horological world was put on notice. It was the first practical new watch escapement to be invented in some 250 years. This video about OMEGA’s Co-Axial technology takes you deep inside the movement that signalled a revolution in mechanical watchmaking.


  • Model Name: Planet Ocean Big Size
  • Model Number:
  • Calibre: Omega 8500
  • Movement: Self-winding movement with Co-Axial Escapement for greater precision, stability and durability. Free sprung-balance, 2 barrels mounted in series, automatic winding in both directions to reduce winding time. Bridges and the oscillating mass are decorated with exclusive Geneva waves in arabesque.
  • COSC Chronometer certified. Signed & numbered.
  • Strap: Stainless steel in brushed & polished finishing
  • Buckle: Signed deployant buckle with extension link & quick release pushers.
  • Case Material: Stainless steel
  • Case Diameter: 45.5mm
  • Case Thickness: 16.9mm
  • Case: Round steel case with Bombe style lugs & screw-in back.
  • Helium-gas escape valve.
  • Bezel: Uni-directional rotating bezel with an orange steel insert marked with 60min divisions in silver.
  • Crown: Signed screw-in crown with protective horns.
  • Dial: Matt black with applied steel logo & batons filled with luminous. White signature, markings & minute divisions. Applied steel logo & Orange quarter numbers.
  • Date: Aperture at 3 o’clock (Quick-set date).
  • Hands: Polished steel & filled with luminous. Sweep centre seconds hand with luminous & orange tip.
  • Crystal: Domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides
  • Water Resistance: 60 bar (600m / 2000ft)
  • Power reserve: 60 hours