Omega
Omega Seamaster Aqua Terra 150M Co-Axial 41.5 Stainless Steel / Red Gold / Grey / Bracelet 231.20.42.21.06.002
The Omega Seamaster Aqua Terra 150M Co-Axial 41.5 Stainless Steel / Red Gold / Grey / Bracelet (reference 231.20.42.21.06.002) is a 41.5 mm red Gold, Stainless Steel watch with a grey dial. It runs on the automatic caliber 8500 and is water resistant to 150 m.
Specifications
Case
- Reference
- 231.20.42.21.06.002
- Collection
- Seamaster Aqua Terra
- Case size
- 41.5 mm
- Case material
- Red Gold, Stainless Steel
- Water resistance
- 150 m
- Bracelet / strap
- Bracelet
Dial and bezel
- Dial
- Grey
Movement
- Movement
- Automatic
- Caliber
- 8500
Dial versions
This reference was made with these dials and finishes.
231.20.42.21.06.002 Grey
Stick / Dot
How it compares within the Seamaster Aqua Terra family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| 231.20.42.21.06.002 (This watch) | 41.5 mm | Red Gold, Stainless Steel | Grey | 8500 | — |
| 220.10.41.21.03.003 | 41 mm | Stainless Steel | Blue | 8900 | 2019– |
| 220.10.41.21.03.004 | 41 mm | Stainless steel | Blue | 8900 | 2019– |
| 220.93.43.22.99.001 | 43 mm | Platinum | Silver | 8939 | 2017– |
| 231.10.34.20.55.003 | 34 mm | Stainless Steel | Silver | 8520 | 2016– |
| 231.10.42.21.02.005 | 41.5 mm | Stainless Steel | Silver | 8500 | 2016–2016 |
| 231.10.42.21.03.004 | 41.5 mm | Stainless Steel | Blue | 8500 | 2015– |
| 522.10.42.21.03.001 | 41.5 mm | Stainless Steel | Blue | 8500 | 2016– |
| 522.12.41.21.03.001 | 41 mm | Stainless Steel | Blue | 8900 | 2019– |
About the Seamaster Aqua Terra family
The Aqua Terra joined the Seamaster family in the early 2000s as a versatile everyday watch with 150 metres of water resistance and a dressier look than Omega's dive models. Its teak-pattern dial, inspired by the decks of sailing yachts, is the line's signature, and since the 2017 update the stripes run horizontally.
The catalog holds a very wide range: men's sizes such as 38 and 41 mm, smaller ladies' sizes, GMT and Worldtimer versions, and cases in steel, titanium and several gold alloys. Modern models use Master Chronometer calibers such as the 8900. Dealers identify a piece by its full reference, which gives size, metal, movement and dial colour, since many variants look alike.
Quick answers
- What size is the Omega Seamaster Aqua Terra 150M Co-Axial 41.5 Stainless Steel / Red Gold / Grey / Bracelet 231.20.42.21.06.002?
- The Omega Seamaster Aqua Terra 150M Co-Axial 41.5 Stainless Steel / Red Gold / Grey / Bracelet 231.20.42.21.06.002 has a 41.5 mm case.
- What movement does the Omega Seamaster Aqua Terra 150M Co-Axial 41.5 Stainless Steel / Red Gold / Grey / Bracelet 231.20.42.21.06.002 use?
- It uses the automatic caliber 8500.
- How water resistant is the Omega Seamaster Aqua Terra 150M Co-Axial 41.5 Stainless Steel / Red Gold / Grey / Bracelet 231.20.42.21.06.002?
- It is water resistant to 150 metres.
- What is the Omega Seamaster Aqua Terra 150M Co-Axial 41.5 Stainless Steel / Red Gold / Grey / Bracelet 231.20.42.21.06.002 made of?
- The case is red Gold, Stainless Steel. Bracelet or strap: Bracelet.
Catalog facts checked October 2026.