Omega Aqua Terra Seamaster Aqua Terra 150M Master Co-Axial 38.5 Stainless Steel / Yellow Gold / MOP / Bracelet

Reference 231.20.39.21.55.004

About this watch

The Omega Seamaster Aqua Terra 150M Master Co-Axial is a masterpiece of luxury watchmaking, boasting an exquisite Mother of Pearl dial and a durable combination of stainless steel and yellow gold. At the heart of this timepiece lies the Omega caliber 8500 movement, certified as a Master Co-Axial Chronometer and featuring a power reserve of up to 60 hours. With its stunning design and impressive technical specifications, this watch stands out as a prime example of Omega's craftsmanship. Whether you're in a formal setting or enjoying casual outings, this watch is suitable for any occasion, thanks to its versatility and excellent water resistance of 150 meters.
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Key Features

  • Omega caliber 8500 movement
  • Master Co-Axial Chronometer certification
  • 60-hour power reserve
  • Exquisite Mother of Pearl dial
  • Durable stainless steel and yellow gold materials
  • Excellent water resistance (150 meters)
  • Versatile design suitable for any occasion

Specifications

Brand
Omega
Family
Aqua Terra
Model
Seamaster Aqua Terra 150M Master Co-Axial 38.5 Stainless Steel / Yellow Gold / MOP / Bracelet
Reference
231.20.39.21.55.004
Movement
8500
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
38.5mm
Dial Color
White
Crystal
Sapphire
Water Resistance
150

Current Listings

[WTS] Omega Seamaster Aqua Terra 150M 220.10.41.21.03.001 – Blue Teak Dial – VG – Box & Papers

Omega Seamaster Aqua Terra 150M 220.10.41.21.03.001 – Blue Teak Dial – VG – Box & Papers

  • Condition: Very Good
  • Water Resistance: 150m
  • Power Reserve: ~60 hours
  • Case Size: 41mm diameter
Posted at
Apr 7, 2026, 2:24 PM
Active
[WTS] Omega Seamaster Aqua Terra 231.10.42.21.02.001 - Price Reduced!

Omega Seamaster Aqua Terra 231.10.42.21.02.001 - Price Reduced!

This is a Watch-only example of the Omega Seamaster Aqua Terra in White Dial, model number 231.10.42.21.02.001, featuring a 41.5mm size and excellent condition.

  • Condition: Very clean pre-owned condition with light wear throughout.
  • Size: 41.5mm
Posted at
Apr 6, 2026, 6:21 PM
Active
[WTS] Omega Seamaster Aqua Terra 2503.33  - $2,650

Omega Seamaster Aqua Terra 2503.33 - $2,650

Omega - 2503.33 · $2,650
This Omega Seamaster Aqua Terra 2503.33 is a 39mm watch featuring an automatic movement and a steel case on an original Omega Steel bracelet.

  • Condition: Good condition with a conservative rating of 8.9/10
  • Movement: Omega 2500 automatic movement
  • Case size: 39mm diameter
  • Bracelet type: Original Omega Steel bracelet
Posted at
Apr 5, 2026, 10:42 PM
Active
[WTS] Omega Seamaster Aqua Terra 231.10.39 38.5mm Skyfall   - $3,350

Omega Seamaster Aqua Terra 231.10.39 38.5mm Skyfall - $3,350

Up for sale is a Omega Seamaster Aqua Terra 231.10.39.21.03.001 with an automatic movement and measuring at 38.5mm. It has a steel case on original Omega steel bracelet.

  • Condition: Very good condition for it's age (8.9/10)
  • Case size: 38.5mm diameter
  • Bracelet material: Steel
  • Movement: Automatic Omega Calibre 8500
Posted at
Apr 5, 2026, 10:38 PM
Active
[WTS] Omega Aqua Terra 231.10.39 Cal 8500 39mm - $2,690

Omega Aqua Terra 231.10.39 Cal 8500 39mm - $2,690

Up for sale is my Omega Aqua Terra 231.10.39 Cal 8500, a watch with a 39mm steel case on original Omega steel bracelet and an OMEGA 8500 movement.

  • Condition: Great condition, minor marks on the case and crystal
  • Case size: 39mm diameter
  • Movement: Calibre OMEGA 8500
  • Bracelet material: Steel
Posted at
Apr 5, 2026, 10:27 PM
Active
[WTS] Omega Seamaster Aqua Terra 2504.50 - $2,490

Omega Seamaster Aqua Terra 2504.50 - $2,490

Omega - 2504.50 · $2,490
Up for sale is my Omega Seamaster Aqua Terra 2504.50.00, a 36mm automatic watch with a steel case and original Omega Steel bracelet.

  • Condition: Very good condition
  • Case Size: 36mm diameter
  • Movement Type: automatic
Posted at
Apr 5, 2026, 10:19 PM
Active
[WTS] Omega Aqua Terra 231.10.39 Cal 8500, White Teak 39mm, Box and Papers - $2,750

Omega Aqua Terra 231.10.39 Cal 8500, White Teak 39mm, Box and Papers - $2,750

Up for sale is my Omega Aqua Terra 231.10.39 Cal 8500, a 39mm watch with an OMEGA 8500 movement.

  • Condition: Great condition with minimal marks
  • Case size: 39mm diameter
  • Movement type: Calibre OMEGA 8500
  • Bracelet material: Steel
Posted at
Apr 5, 2026, 9:52 PM
Active
[WTS] Omega Aqua Terra 2503.30 39mm Champagne Dial Box and Papers - $2,390

Omega Aqua Terra 2503.30 39mm Champagne Dial Box and Papers - $2,390

Omega - 2503.30 · $2,390
Up for sale is my great condition Omega Seamaster 2503.30, measuring at 39mm with an automatic Omega Calibre 2500 movement.

  • Condition: Very good condition for its age
  • Movement: Omega Calibre 2500
  • Bracelet material: Steel
  • Case size: 39mm diameter
Posted at
Apr 5, 2026, 9:40 PM
Active