Seamaster Planet Ocean 600m 45.5mm Ultra Deep

O‑Megasteel ‑ 45.5mm

As part of the Five Deeps Expedition in 2019, the Ultra Deep made history when it reached the deepest place on Earth. Following that World Record dive, the game-changing watch has now been adapted for a unique collection available to the public.


AUD / Including GST

Detailed features & specifications

Tested in real ocean conditions during its development, the design is water-resistant to 6,000 metres (20,000 ft.) and meets the ISO 6425:2018 standard for saturation divers’ watches.

This 45.5 mm model in robust O-MEGASTEEL features a polished black ceramic bezel with its diving scale in Liquidmetal™. Through the protuberant and domed sapphire crystal, the lacquered gradient dial transitions from blue to black, and has been given 18K white gold hands and hour markers, which are all coated with white Super-LumiNova.

The watch is set on an O-MEGASTEEL bracelet with OMEGA’s patented extendable foldover rack-and-pusher with complementary length adjustment and an extra diver extension, while on the caseback’s Grade 5 titanium medallion, there is a laser-engraved Sonar emblem with the iconic OMEGA Seahorse at its centre. Inside, the watch is driven by the OMEGA Co-Axial Master Chronometer Calibre 8912.

All OMEGA watches are delivered with a 5-year warranty that covers the repair of any material or manufacturing defects. Please refer to the operating instructions for specific information about the warranty conditions and restrictions.

Technical Details

Calibre – Omega 8912 Self-winding movement with Co-Axial escapement.

Power reserve – 60 hours

Crystal – Domed, protuberant and scratch-resistant sapphire crystal with anti-reflective treatment on both sides.

Water Resistance – 600 bar (6000 metres / 20000 feet)


Case Diameter – 45.5 mm

Between lugs – 22 mm

Thickness – 18.1 mm

Dial Colour – Blue

Total product weight (Approx.) – 254 g

Bracelet Material – O-MEGASTEEL

Type of Clasp – Fold over clasp with comfort setting and diver extension

Features – Anti-magnetic, chronometer, master chronometer certified, screw-in crown, unidirectional rotating bezel, time zone function

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