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] 2020 Omega Seamaster Aqua Terra 42mm Spectre 007 James Bond LE 231.10.42.21.03.004 Full Set

2020 Omega Seamaster Aqua Terra 42mm Spectre 007 James Bond LE 231.10.42.21.03.004 Full Set

A 2020 Omega Seamaster Aqua Terra 42mm Spectre limited-edition model, created to celebrate James Bond's on-screen return in the 2015 film.

  • Condition: Excellent
  • Year: 2020
  • Edition: Spectre 007 James Bond LE
Posted at
Feb 12, 2026, 12:52 PM
Active
[WTS] Omega Aqua Terra 231.10.39 Cal 8500 39mm Full Kit - $2,900 - u/reserved post for u/Dense_Magazine9171

Omega Aqua Terra 231.10.39 Cal 8500 39mm Full Kit - $2,900 - u/reserved post for u/Dense_Magazine9171

Up for sale is my Omega Aqua Terra 231.10.39 Cal 8500, a watch that measures at 39mm and has an Calibre OMEGA 8500 movement.

  • Condition: Great condition with very minimal marks on the case and caseback
  • Case size: 39mm diameter
  • Movement: Calibre OMEGA 8500
  • Bracelet type: Original Omega steel bracelet
Posted at
Feb 11, 2026, 9:21 PM
Active
[WTS] Omega Seamaster Aqua Terra 150m Blue 220.10.41.21.03.002

Omega Seamaster Aqua Terra 150m Blue 220.10.41.21.03.002

This Omega Seamaster Aqua Terra is a blue 150m diver's watch featuring a 7.25" bracelet.

  • Bracelet length: 7.25 inches
  • Payment methods: Zelle, Venmo, Western Union
Posted at
Feb 11, 2026, 6:16 PM
Active
[WTS] Omega Seamaster Aqua Terra 38.5MM “Blue Teak” 231.10.39.21.03.002 | 2018 Box and Papers

Omega Seamaster Aqua Terra 38.5MM “Blue Teak” 231.10.39.21.03.002 | 2018 Box and Papers

This Omega Seamaster Aqua Terra is a 38.5MM watch from 2018, featuring the 'Blue Teak' dial.

  • Condition: Excellent Pre-Owned
  • Year: 2018
Posted at
Feb 11, 2026, 4:06 PM
Active
[WTS] OMEGA Aqua Terra 2022 Excellent condition full set $4400

OMEGA Aqua Terra 2022 Excellent condition full set $4400

OMEGA - Aqua Terra · $4,400
This is an OMEGA Aqua Terra, a 2022 model with double boxing and all original cards.

  • Condition: Excellent
  • Year: 2022
  • Set Type: full
Posted at
Feb 11, 2026, 10:28 AM
Active
[WTS] Omega Seamaster Aqua Terra 41mm White 220.10.41.21.02.001 2024 Full Set - $5,095

Omega Seamaster Aqua Terra 41mm White 220.10.41.21.02.001 2024 Full Set - $5,095

This Omega Seamaster Aqua Terra White is a 2024 model, fully set with its original packaging and accessories.

  • Condition: Excellent condition with minimal signs of wear
  • Year: 2024
  • Case Size: 41mm
Posted at
Feb 10, 2026, 9:42 AM
Active
[WTS] Omega Seamaster Aqua Terra 2023 41mm Grey 220.10.41.21.06.001 Full Set - $5,495

Omega Seamaster Aqua Terra 2023 41mm Grey 220.10.41.21.06.001 Full Set - $5,495

Up for sale is a Omega Seamaster Aqua Terra Grey, a **Reference**: 220.10.41.21.06.001 from the year 2023.

  • Condition: Excellent condition with minimal signs of wear
  • Case Size: 41mm
  • Water Resistance: 30m
Posted at
Feb 10, 2026, 9:19 AM
Active
[WTS] Omega Aqua Terra Quartz 38.5mm Grey 1538 231.10.39.61.06.001

Omega Aqua Terra Quartz 38.5mm Grey 1538 231.10.39.61.06.001

A well-maintained Omega Aqua Terra Quartz in Grey, measuring 38.5mm in diameter.

  • Condition: Good condition with little signs of use
  • Wrist size: 18.5cm
  • Shipping from: Singapore
Posted at
Feb 9, 2026, 10:18 PM
Active