Omega Aqua Terra Seamaster Aqua Terra 150M Co-Axial 30 Stainless Steel / Red Gold / MOP / Bracelet

Reference 231.20.30.20.55.001

About this watch

The Omega Seamaster Aqua Terra 150M Co-Axial 30 is a luxury watch that combines exquisite craftsmanship with robust functionality, featuring a harmonious blend of stainless steel and red gold, an elegant Mother of Pearl (MOP) dial, and impressive specifications. With its stunning design, reliable movement, and impressive water resistance, it's a versatile choice for both land and sea. The MOP dial is a standout feature, showcasing a beautiful play of colors that changes with light, while the gem-set indexes add a touch of glamour. The watch boasts a certified chronometer movement, ensuring accurate timekeeping, and features an automatic movement with a power reserve of 50 hours. Its comfort is also noteworthy, feeling lightweight yet sturdy on the wrist, making it perfect for everyday wear.
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Key Features

  • Omega Caliber 8520 automatic movement
  • Certified chronometer by COSC
  • Water resistance up to 150 meters
  • Mother of Pearl (MOP) dial with gem-set indexes
  • Arrow-shaped hands for easy readability
  • Open case back for viewing the movement
  • Harmonious blend of stainless steel and red gold materials

Specifications

Brand
Omega
Family
Aqua Terra
Model
Seamaster Aqua Terra 150M Co-Axial 30 Stainless Steel / Red Gold / MOP / Bracelet
Reference
231.20.30.20.55.001
Movement
8520
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
30mm
Dial Color
White
Crystal
Sapphire
Water Resistance
150

Current Listings

[WTS] Omega Seamaster Aqua Terra 150m | Master Co-Axial | 41.5mm | 231.10.42.21.03.003 Blue

Omega Seamaster Aqua Terra 150m | Master Co-Axial | 41.5mm | 231.10.42.21.03.003 Blue

This listing is for an Omega Seamaster Aqua Terra Master Co-Axial with a blue dial, measuring 41.5mm in diameter and featuring a 7.25-inch bracelet.

  • Case Size: 41.5mm
  • Bracelet Length: 7.25 inches
Posted at
Feb 17, 2026, 1:38 PM
Active
[WTS] Omega Aqua Terra White Teaked 38.5mm

Omega Aqua Terra White Teaked 38.5mm

Omega - 8500 · $2,750
This Omega Aqua Terra 38.5mm features a white teaked dial and is available for purchase with an extra omega travel bag.

  • Condition: Excellent, no issues
  • Case Size: 38.5mm
  • Box Papers: No box/no papers
Posted at
Feb 16, 2026, 10:46 PM
Active
[WTS] Omega Seamaster Aqua Terra Worldtimer – Blue Strap – Ref. 220.10.43.22.03.001 – Unworn 2025 – $8,490 + Shipping

Omega Seamaster Aqua Terra Worldtimer – Blue Strap – Ref. 220.10.43.22.03.001 – Unworn 2025 – $8,490 + Shipping

A new, unworn Omega Seamaster Aqua Terra Worldtimer featuring a striking blue dial and matching blue strap.

  • Condition: New / Unworn
  • Case size: 43mm diameter
  • Water resistance: 150m depth rating
  • Power reserve: 60-hour power reserve
Posted at
Feb 16, 2026, 9:17 PM
Active
[WTS] Omega Aqua Terra 38 Blue Teak

Omega Aqua Terra 38 Blue Teak

Omega - Aqua Terra 38mm · $4,200
Up for sale is an Omega Aqua Terra 38mm with blue horizontal teak dial on bracelet. It includes various accessories such as the Omega white box, hang tag, full bracelet with all links, manual, and a red Omega travel pod.

  • Condition: Excellent
  • Diameter: 38mm
Posted at
Feb 16, 2026, 4:32 PM
Active
[WTS] Omega Aqua Terra 36mm - Blue Dial - Quartz - 2518.80 - Price Reduced!

Omega Aqua Terra 36mm - Blue Dial - Quartz - 2518.80 - Price Reduced!

Omega - 2518.80 · $1,695
A beautiful Omega Seamaster Aqua Terra Blue, 36mm in size, with a stunning blue dial.

  • Condition: Good overall condition, minimal wear
  • Size: 36mm diameter
  • Movement type: Quartz
Posted at
Feb 16, 2026, 2:22 PM
Active
[WTS] Omega Seamaster Aqua Terra 150m | Master Co-Axial | 41.5mm | 231.10.42.21.03.003 Blue

Omega Seamaster Aqua Terra 150m | Master Co-Axial | 41.5mm | 231.10.42.21.03.003 Blue

This listing is for an Omega Seamaster Aqua Terra Master Co-Axial, a blue-coloured watch with a 41.5mm case size.

  • Bracelet Length: 7.25"
Posted at
Feb 16, 2026, 1:26 PM
Active
[WTS] Omega Seamaster Aqua Terra Ref. 231.10.42.21.03.003 Excellent Condition

Omega Seamaster Aqua Terra Ref. 231.10.42.21.03.003 Excellent Condition

The Omega Seamaster Aqua Terra reference 231.10.42.21.03.003 is a versatile watch that combines sport and elegance, featuring a teak-pattern dial and sapphire display caseback.

  • Condition: Excellent pre-owned condition
  • Case diameter: 42mm
  • Movement: Omega Co-Axial automatic
Posted at
Feb 15, 2026, 9:22 PM
Active
[WTS] Omega Seamaster Aqua Terra Blue Dial - 36mm - 2504.80 - Clean!

Omega Seamaster Aqua Terra Blue Dial - 36mm - 2504.80 - Clean!

Omega - 2504.80 · $2,595
This Omega Seamaster Aqua Terra features a navy blue sunburst dial and is powered by Omega's Co-Axial automatic movement, housed in a 36.2mm case.

  • Condition: Excellent overall condition, minimal wear
  • Case diameter: 36.2mm
  • Crystal type: domed sapphire crystal with anti-reflective coating
  • Bracelet material: stainless steel
Posted at
Feb 15, 2026, 5:50 PM
Active
[WTS] Omega Seamaster Aqua Terra - ‘Blue Wave’ Gold Accents - Complete Set

Omega Seamaster Aqua Terra - ‘Blue Wave’ Gold Accents - Complete Set

Omega - 23110422103006 · $5,250
The Omega Seamaster Aqua Terra 150M 'Blue Wave Dial' is a striking Aqua Terra released for a very short period in limited production, featuring a blue dial with a wave pattern and 18K yellow gold accents.

  • Condition: Excellent all-around condition
  • Case size: 41.5mm diameter
  • Water resistance: 150M / 15 bar
  • Movement: Omega Master Co-Axial calibre 8500
Posted at
Feb 15, 2026, 4:28 PM
Active