Omega Aqua Terra Seamaster Aqua Terra 150M Co-Axial 34 Stainless Steel / Diamond / MOP

Reference 231.18.34.20.55.001

Omega Seamaster Aqua Terra 150M Co-Axial 34 Stainless Steel / Diamond / MOP

About this watch

The Omega Seamaster Aqua Terra 231.18.34.20.55.001 is a masterpiece of luxury watchmaking, blending elegance with precision in a stunning package. Crafted from stainless steel and adorned with diamond accents, this 34mm timepiece exudes sophistication and refinement. The Mother of Pearl dial shines with an iridescent quality, while the gem-set indexes add a luxurious touch. Powered by the Omega caliber 8521 movement, this watch boasts accurate timekeeping and a remarkable power reserve of 50 hours. With its robust stainless steel case and scratch-resistant sapphire crystal, it's built to withstand the elements. Whether you're swimming, snorkeling, or just enjoying everyday wear, this Aqua Terra is the perfect companion. Its versatile design effortlessly transitions from casual to formal occasions, making it a staple in any wardrobe.
Buy Now on Jomashop
This is an affiliate link

Key Features

  • Omega caliber 8521 movement
  • Mother of Pearl dial with gem-set indexes
  • Water resistance up to 150 meters
  • Automatic winding and Co-Axial escapement for accurate timekeeping
  • Scratch-resistant sapphire crystal
  • Robust stainless steel case
  • 50-hour power reserve

Specifications

Brand
Omega
Family
Aqua Terra
Model
Seamaster Aqua Terra 150M Co-Axial 34 Stainless Steel / Diamond / MOP
Reference
231.18.34.20.55.001
Movement
8521
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
Stainless Steel 34mm
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

Omega - 231.10.42.21.03.004 · $6,595
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
View listing on r/WatchExchange
[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

Omega - 231.10.39 Cal 8500 · $2,900
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
View listing on r/WatchExchange
[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

Omega - 220.10.41.21.03.002 · $3,850
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
View listing on r/WatchExchange
[WTS] Omega Aqua Terra Full Set

Omega Aqua Terra Full Set

Posted at
Feb 11, 2026, 11:00 AM
Active
View listing on r/WatchExchange
[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
View listing on r/WatchExchange
[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

Omega - 220.10.41.21.02.001 · $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
View listing on r/WatchExchange
[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

Omega - 220.10.41.21.06.001 · $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
View listing on r/WatchExchange
[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

Omega - 231.10.39.61.06.001 · $1,850
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
View listing on r/WatchExchange
[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

Omega - 231.10.42.21.03.003 · $3,499
A Omega Seamaster Aqua Terra Master Co-Axial in blue, featuring a 41.5mm case and 7.25 inch bracelet.

  • Case Diameter: 41.5mm
  • Bracelet Length: 7.25"
Posted at
Feb 9, 2026, 9:28 PM
Active
View listing on r/WatchExchange