Omega
Omega Seamaster Planet Ocean Ultra Deep 6000M Co-Axial Master Chronometer 45.5 215.30.46.21.03.001
“Ultra Deep”
The Omega Seamaster Planet Ocean Ultra Deep 6000M Co-Axial Master Chronometer 45.5 (reference 215.30.46.21.03.001) is a 45.5 mm O-MEGASTEEL watch with a blue gradient dial. It runs on the automatic caliber 8912 with a 60-hour power reserve and is water resistant to 6000 m. It was introduced in 2022 and is still in production.
Specifications
Case
- Reference
- 215.30.46.21.03.001
- Nickname
- Ultra Deep
- Collection
- Seamaster Planet Ocean
- Case size
- 45.5 mm
- Thickness
- 18.12 mm
- Case material
- O-MEGASTEEL
- Case shape
- Round
- Crystal
- Sapphire
- Water resistance
- 6000 m
- Bracelet / strap
- Stainless steel bracelet
Dial and bezel
- Dial
- Blue gradient
- Bezel
- Rotating dive bezel (ceramic)
Movement
- Movement
- Automatic
- Caliber
- 8912
- Power reserve
- 60 hours
- Frequency
- 25,200 vph
- Jewels
- 39
- Functions
- Time only, Dive bezel
Production
- Production
- 2022 – today (current)
How it compares within the Seamaster Planet Ocean family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| 215.30.46.21.03.001 (This watch) | 45.5 mm | O-MEGASTEEL | Blue gradient | 8912 | 2022– |
| 215.30.40.20.01.001 | 39.5 mm | Stainless steel | Black | 8800 | 2016– |
| 215.30.44.21.01.001 | 43.5 mm | Stainless steel | Black | 8900 | 2016– |
| 215.30.46.21.04.001 | 45.5 mm | O-Megasteel | White | — | — |
| 215.30.46.21.06.001 | 45.5 mm | O-Megasteel | Blue | — | — |
| 215.32.46.21.03.001 | 45.5 mm | O-Megasteel | Grey | — | — |
| 215.32.46.21.04.001 | 45.5 mm | O-Megasteel | White | — | — |
| 215.32.46.21.06.001 | 45.5 mm | O-Megasteel | Blue | — | — |
| 215.92.46.21.01.001 | 45.5 mm | Titanium | Black | — | — |
About the Seamaster Planet Ocean family
The Planet Ocean was introduced in 2005 as a deeper-rated Seamaster, water resistant to 600 metres, with a heavier case, a helium escape valve and bright orange accents inspired by Omega's 1960s divers.
In 2016 the line moved to Master Chronometer calibers such as the 8900, under refs. such as 215.30.44.21, and it includes GMT models, chronographs and the Deep Black models in ceramic. Case sizes vary from about 39.5 to 45.5 mm. Dealers describe a Planet Ocean by size, bezel colour and bracelet or strap, and separate the pre-2016 co-axial generation from the Master Chronometer models.
Quick answers
- What size is the Omega Seamaster Planet Ocean Ultra Deep 6000M Co-Axial Master Chronometer 45.5 215.30.46.21.03.001?
- The Omega Seamaster Planet Ocean Ultra Deep 6000M Co-Axial Master Chronometer 45.5 215.30.46.21.03.001 has a 45.5 mm case, 18.12 mm thick.
- What movement does the Omega Seamaster Planet Ocean Ultra Deep 6000M Co-Axial Master Chronometer 45.5 215.30.46.21.03.001 use?
- It uses the automatic caliber 8912, with a 60-hour power reserve.
- How water resistant is the Omega Seamaster Planet Ocean Ultra Deep 6000M Co-Axial Master Chronometer 45.5 215.30.46.21.03.001?
- It is water resistant to 6000 metres.
- Is the Omega Seamaster Planet Ocean Ultra Deep 6000M Co-Axial Master Chronometer 45.5 215.30.46.21.03.001 still in production?
- Yes, it is a current reference.
- When did the Omega Seamaster Planet Ocean Ultra Deep 6000M Co-Axial Master Chronometer 45.5 215.30.46.21.03.001 come out?
- It was introduced in 2022.
- What is the Omega Seamaster Planet Ocean Ultra Deep 6000M Co-Axial Master Chronometer 45.5 215.30.46.21.03.001 made of?
- The case is O-MEGASTEEL. Bracelet or strap: Stainless steel bracelet.
- What is the Omega Seamaster Planet Ocean Ultra Deep 6000M Co-Axial Master Chronometer 45.5 215.30.46.21.03.001 nicknamed?
- Dealers and collectors call it the “Ultra Deep”.
Catalog facts checked September 2026.