Omega Aqua Terra Seamaster Aqua Terra 150M Co-Axial 30 Stainless Steel / Diamond / MOP

Reference 231.18.30.20.55.001

About this watch

The Omega Seamaster Aqua Terra 150M Co-Axial 30 is a masterpiece of luxury watchmaking, featuring a stunning mother of pearl dial and diamond accents that exude elegance and sophistication. Powered by the reliable Omega caliber 8520, this self-winding automatic movement boasts a power reserve of up to 50 hours, ensuring accuracy and precision. The watch's versatility makes it perfect for both formal events and casual wear, while its water resistance of up to 150 meters makes it an ideal companion for adventure seekers and urban dwellers alike. With its sapphire crystal and stainless steel case, this timepiece is built to last, combining exceptional craftsmanship, cutting-edge technology, and timeless design.
Buy Now on Jomashop
This is an affiliate link

Key Features

  • Stainless Steel Case
  • Sapphire Crystal
  • Mother of Pearl Dial
  • Gem-Set Indexes
  • Omega Caliber 8520 Movement
  • Co-Axial Escapement
  • 150m Water Resistance

Specifications

Brand
Omega
Family
Aqua Terra
Model
Seamaster Aqua Terra 150M Co-Axial 30 Stainless Steel / Diamond / MOP
Reference
231.18.30.20.55.001
Movement
8520
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
Stainless Steel 30mm
Dial Color
White
Crystal
Sapphire
Water Resistance
150

Current Listings

[WTS] Omega Seamaster Aqua Terra 231.10.39.21.01.001 Black Teak 38.5mm  - $2,590

Omega Seamaster Aqua Terra 231.10.39.21.01.001 Black Teak 38.5mm - $2,590

Up for sale is my great condition Omega Seamaster Aqua Terra 231.10.39.21.01.001, this watch measures at 38.5mm and has an automatic Omega Calibre 8500 movement.

  • Condition: Very good condition for its age
  • Case size: 38.5mm
  • Movement: Automatic Omega Calibre 8500
  • Bracelet material: Steel
Posted at
May 24, 2026, 9:01 PM
Active
[WTS] Omega Seamaster Aqua Terra “Turquoise Shades” 41mm Reduced

Omega Seamaster Aqua Terra “Turquoise Shades” 41mm Reduced

Up for sale is my Omega Seamaster Aqua Terra Shades in the stunning turquoise lacquer dial configuration, featuring a sunburst/turquoise gradient effect that shifts beautifully in different lighting.

  • Condition: Pretty good overall condition with normal signs of wear
  • Case size: 41mm
  • Movement: Omega Co-Axial Master Chronometer Caliber 8900
  • Power reserve: 60 Hours
Posted at
May 24, 2026, 5:55 PM
Active
[WTS] 2025 Omega Seamaster Aqua Terra Green 220.10.41.21.10.001 41mm Full Set - $4,995

2025 Omega Seamaster Aqua Terra Green 220.10.41.21.10.001 41mm Full Set - $4,995

A 2025 Omega Seamaster Aqua Terra Green, a high-end watch designed for everyday use.

  • Condition: Excellent condition with minimal signs of wear
  • Case size: 41mm
Posted at
May 24, 2026, 11:38 AM
Active
[WTS] Omega Seamaster Aqua Terra – ‘Blue Wave’ – Gold Accents – Complete Set

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

Omega - 23110422103006 · $4,950
The Omega Seamaster Aqua Terra 'Blue Wave' features a striking blue dial with wave pattern and is equipped with the Master Co-Axial calibre 8500. It has a 41.5mm stainless steel case, water resistance to 150M, and power reserve of 60 hours.

  • Condition: Excellent all-around condition
  • Case size: 41.5mm diameter
  • Water resistance: 150M / 15 bar
  • Power reserve: 60 hours
Posted at
May 23, 2026, 1:26 PM
Active
[WTS] Omega Seamaster Aqua Terra 150M “James Bond Spectre” LE | 41.5MM Blue Dial | 231.10.42.21.03.004 | $5,650 shipped

Omega Seamaster Aqua Terra 150M “James Bond Spectre” LE | 41.5MM Blue Dial | 231.10.42.21.03.004 | $5,650 shipped

This Omega Seamaster Aqua Terra 150M James Bond Spectre features a blue dial and is available for sale on a steel bracelet, complete with an Omega travel case and service history card.

  • Condition: Very good condition with minimal wear
  • Bracelet material: Steel
  • Case size: 41.5MM
Posted at
May 22, 2026, 9:38 PM
Active
[WTS] Omega Seamaster Aqua Terra 38.5mm Full Set

Omega Seamaster Aqua Terra 38.5mm Full Set

2018 Omega Seamaster Aqua Terra 150M 38.5MM in black with a teak dial.

  • Condition: Very good condition
  • Case Size: 38.5mm diameter
  • Water Resistance: 150m depth rating
Posted at
May 22, 2026, 7:55 PM
Active
[WTS] 🔥 Only one in stock in the US! 2022 Beijing Olympics Special Edition: Omega Seamaster Aqua Terra 220.10.41.21.03.003

🔥 Only one in stock in the US! 2022 Beijing Olympics Special Edition: Omega Seamaster Aqua Terra 220.10.41.21.03.003

This Omega Seamaster Aqua Terra is a 2022 Beijing Olympics Special Edition with a 41 mm stainless steel case and METAS Certified Calibre 8900 automatic movement.

  • Condition: Pre-owned, exceptional condition
  • Case material: Stainless steel
  • Case size: 41mm diameter
  • Movement type: Automatic
Posted at
May 22, 2026, 6:46 PM
Active
[WTS]🔥OMEGA SEAMASTER AQUA TERRA TURQUOISE 41MM MINT🔥

🔥OMEGA SEAMASTER AQUA TERRA TURQUOISE 41MM MINT🔥

a mint condition Omega Seamaster Aqua Terra 41mm in turquoise.

  • Condition: Mint
Posted at
May 22, 2026, 4:31 PM
Active
[WTS] Omega Seamaster Aqua Terra 150m Blue 231.10.42.21.03.003

Omega Seamaster Aqua Terra 150m Blue 231.10.42.21.03.003

This Omega Seamaster Aqua Terra 150m Blue is a pre-owned watch that comes in the original configuration, including a 7.5" bracelet.

  • Condition: Like new
  • Bracelet size: 7.5"
  • Depth rating: 150m
Posted at
May 22, 2026, 2:35 PM
Active