Omega Aqua Terra Seamaster Aqua Terra 150M Master Co-Axial 38.5 Stainless Steel / Diamond / MOP

Reference 231.18.39.21.55.001

About this watch

The Omega Seamaster Aqua Terra 231.18.39.21.55.001 is a masterpiece of luxury watchmaking, featuring a stunning Mother of Pearl dial and exceptional movement with a 60-hour power reserve. Its durable stainless steel construction and water resistance up to 150 meters make it perfect for everyday wear. This versatile timepiece combines elegance and functionality, making it a solid contender in the world of luxury watches.
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MSRP: $16,000
Market Price: $5,140

Key Features

  • Omega caliber 8500 automatic movement
  • 60-hour power reserve
  • Water resistance up to 150 meters
  • Mother of Pearl dial with gem-set indexes
  • Durable stainless steel construction
  • Date function and hours, minutes, seconds display

Specifications

Brand
Omega
Family
Aqua Terra
Model
Seamaster Aqua Terra 150M Master Co-Axial 38.5 Stainless Steel / Diamond / MOP
Reference
231.18.39.21.55.001
Movement
8500
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
Stainless Steel 38.5mm
Dial Color
White
Crystal
Sapphire
Water Resistance
150

Current Listings

[WTS] Omega Seamaster Aqua Terra - 220.10.38.20.03.001 - Full Kit - $4,195 Shipped

Omega Seamaster Aqua Terra - 220.10.38.20.03.001 - Full Kit - $4,195 Shipped

This Omega Seamaster Aqua Terra is a 38mm watch with sapphire crystal, running well and in great condition.

  • Condition: Fantastic condition
  • Size: 38mm diameter
  • Year: 2021
Posted at
Jan 7, 2026, 4:40 PM
Active
[WTS] Omega Seamaster Aqua Terra - 231.10.39.21.02.001 - Box and Papers - $3,195 Shipped!

Omega Seamaster Aqua Terra - 231.10.39.21.02.001 - Box and Papers - $3,195 Shipped!

This Omega Seamaster Aqua Terra features a stainless steel case, sapphire crystal, and is water-resistant to 150m. The watch comes with the original box, warranty card, and booklet.

  • Condition: Great preowned condition with light wear
  • Movement: Omega Calibre 8500 Co-Axial (in-house automatic movement)
  • Case diameter: 38.5mm
  • Water-resistance: 150m depth rating
Posted at
Jan 7, 2026, 4:24 PM
Active
[WTS] Omega Seamaster Aqua Terra 150m Master Co-Axial Golf Edition (2020) Complete Kit With Extra Straps

Omega Seamaster Aqua Terra 150m Master Co-Axial Golf Edition (2020) Complete Kit With Extra Straps

This Omega Seamaster Aqua Terra 150m Master Co-Axial Golf Edition is a 2020 model featuring a 41mm case size. It has been worn less than 20 times and comes with multiple straps.

  • Condition: Worn less than 20 times
  • Size: 41mm diameter
  • Background: Bought in 2020 from WatchMaxx
Posted at
Jan 6, 2026, 8:23 PM
Active
[WTS] Omega Aqua Terra 220.10.41.21 Black Dial 41mm Full Kit 2023 - $4,350

Omega Aqua Terra 220.10.41.21 Black Dial 41mm Full Kit 2023 - $4,350

Omega - 220.10.41.21 · $4,350
Up for sale is my Omega Seamaster Aqua Terra [220.10.41.21] with a 41mm case and Calibre OMEGA 8900 automatic movement.

  • Condition: Very good condition, minimal marks/hairlines on the case
  • Movement: Calibre OMEGA 8900
  • Case size: 41mm diameter
  • Bracelet type: Steel Omega steel bracelet
Posted at
Jan 6, 2026, 7:48 PM
Active
[WTS] Omega Aqua Terra 220.10.41.21 Black Dial 41mm Full Kit 2023 - $4,350

Omega Aqua Terra 220.10.41.21 Black Dial 41mm Full Kit 2023 - $4,350

Omega - 220.10.41.21 · $4,350
This Omega Seamaster Aqua Terra measures at 41mm with a Calibre OMEGA 8900 automatic movement.

  • Condition: Very good condition, minor marks/hairlines on the case
  • Movement: Calibre OMEGA 8900 automatic movement
  • Case size: 41mm diameter
  • Water resistance: 150m
Posted at
Jan 5, 2026, 9:32 PM
Active
[WTS] 2023 Omega Aqua Terra Shades Saffron 220.10.38.20.12.001, Complete Set $4500 + Label

2023 Omega Aqua Terra Shades Saffron 220.10.38.20.12.001, Complete Set $4500 + Label

The Omega Seamaster Aqua Terra Shades Collection is a tribute to OMEGA's maritime heritage, featuring a symmetrical case with polished stainless steel and a wave-edged design on the back.

  • Condition: Lightly worn
  • Case size: 38mm diameter
  • Dial color: Saffron
  • Bracelet material: Polished and brushed stainless steel
Posted at
Jan 5, 2026, 1:36 PM
Active
[WTS] 2023 Omega Aqua Terra Worldtimer 220.12.43.22.03.001 Full Kit

2023 Omega Aqua Terra Worldtimer 220.12.43.22.03.001 Full Kit

A 2023 Omega Aqua Terra Worldtimer with a 43mm size, automatic Master Chronometer movement, blue dial, and sapphire crystal.

  • Condition: Great condition overall, minimal wear on bezel and stainless steel case.
  • Size: 43mm diameter
  • Location: U.S. / Georgia
  • Movement: automatic Master Chronometer
Posted at
Jan 4, 2026, 2:56 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

Aqua Terra 150m Blue, a stainless steel watch with a 7.25" bracelet and features 3 watch cards.

  • Bracelet length: 7.25 inches
Posted at
Jan 4, 2026, 12:45 PM
Active
[WTS] Omega Seamaster Aqua Terra - Silver Wave - 2024

Omega Seamaster Aqua Terra - Silver Wave - 2024

Omega - 23110422102006 · $4,350
Aqua Terra 'Silver Wave' watch featuring a silver wave pattern dial, rhodium-plated hands and indexes in a 41.5mm stainless steel case.

  • Case size: 41.5mm
  • Water resistance: 150M / 15 bar
  • Power reserve: 60 hours
Posted at
Jan 4, 2026, 12:37 PM
Active