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

Reference 231.20.39.21.55.003

About this watch

The Omega Seamaster Aqua Terra 150M Master Co-Axial 38.5 is a masterpiece of luxury watchmaking, seamlessly blending elegance with functionality. Its unique mother-of-pearl dial and gem-set indexes create a truly one-of-a-kind look, while its stainless steel case and red gold accents exude luxurious sophistication. With a water resistance of 150 meters, this watch is perfect for those who love to stay active while still looking stylish. At the heart of the Aqua Terra lies the Omega caliber 8500, an in-house automatic movement that has been a game-changer in the watch industry since its introduction in 2007. This remarkable movement boasts a total power reserve of 60 hours and features a Co-Axial escapement that significantly reduces friction between the movement's components, enhancing its longevity and accuracy. Whether you're attending a formal gala or diving into the ocean, this watch is designed to impress with its stunning aesthetics, reliable movement, and robust features.
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Key Features

  • Unique MOP dial and gem-set indexes
  • Water-resistant up to 150 meters
  • In-house Omega caliber 8500 movement
  • 60-hour power reserve
  • Co-Axial escapement for enhanced accuracy and longevity
  • Stainless steel case with red gold accents
  • 38.5mm diameter suitable for both men and women

Specifications

Brand
Omega
Family
Aqua Terra
Model
Seamaster Aqua Terra 150M Master Co-Axial 38.5 Stainless Steel / Red Gold / MOP / Bracelet
Reference
231.20.39.21.55.003
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 41mm (220.32.41.21.03.001) 2025 Turquoise Dial

Omega Seamaster Aqua Terra 150M 41mm (220.32.41.21.03.001) 2025 Turquoise Dial

The Omega Seamaster Aqua Terra 150M 41mm features a stainless-steel case with a brushed ceramic bezel and a wave-edged screw-in caseback, housing the Co-Axial Master Chronometer caliber 8900. The watch boasts a mesmerizing turquoise dial with black gradient effect and facetted hands.

  • Condition: excellent plus condition
  • Case size: 41mm diameter
  • Water resistance: 150m water resistant
Posted at
Dec 27, 2025, 10:37 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 version with a depth rating of 150m, featuring a 7.25 inch bracelet and comes with all original papers.

  • Bracelet length: 7.25 inches
Posted at
Dec 27, 2025, 8:32 PM
Active
[WTS] Omega Seamaster Aqua Terra - Black Wave & Red Gold Accents - 2025 Set

Omega Seamaster Aqua Terra - Black Wave & Red Gold Accents - 2025 Set

One of the most striking Aqua Terra watches released for a very short period in limited production, featuring a lacquered black dial with a wave pattern and 18K red gold hands and indexes.

  • Case Size: 41.5mm
  • Materials: stainless steel case and bracelet
  • Water Resistance Depth: 150M
Posted at
Dec 27, 2025, 1:45 PM
Active
[WTS] Omega Aqua Terra 2504.50 - 36mm - Clean ‼️✈️

Omega Aqua Terra 2504.50 - 36mm - Clean ‼️✈️

Omega - 2504.50 · $2,695
Aqua Terra 36mm Co-Axial Automatic with stunning dial and great movement.

  • Condition: overall amazing shape
  • Size: 36mm diameter
  • No Service History: true
Posted at
Dec 26, 2025, 5:58 PM
Active
[WTS] Omega Seamaster Aqua Terra First Gen 2503.30 39mm Automatic $2200

Omega Seamaster Aqua Terra First Gen 2503.30 39mm Automatic $2200

Omega - 2503.30 · $2,200
This Omega Seamaster Aqua Terra is a first generation model from 2006, featuring a 39mm case and an automatic movement.

  • Condition: Pre-owned, recently polished
  • Year of production: 2006
  • Movement type: Automatic
Posted at
Dec 25, 2025, 11:03 PM
Active
[WTS] Omega Aqua Terra GoodPlanet Special Release - Titanium - Lacquered Dial - 38.5mm

Omega Aqua Terra GoodPlanet Special Release - Titanium - Lacquered Dial - 38.5mm

Omega - 23192392104001 · $4,200
Limited-edition Omega Seamaster Aqua Terra 150M 'GoodPlanet' Special Release featuring a grade 5 titanium case, lacquered white dial, and striking blued hands and indices. It is powered by the Omega Master Co-Axial Calibre 8500.

  • Condition: Excellent all-around condition
  • Case material: Grade 5 titanium
  • Dial color: Lacquered white
  • Movement: Omega Master Co-Axial Calibre 8500
Posted at
Dec 23, 2025, 1:00 PM
Active
[WTS] Omega Seamaster Aqua Terra 231.10.39 38.5mm Quartz Grey Teak

Omega Seamaster Aqua Terra 231.10.39 38.5mm Quartz Grey Teak

Omega - 231.10.39 · $1,800
Up for sale is my great condition Omega Seamaster Aqua Terra 231.10.39. This watch measures at 39mm and has a Calibre OMEGA 4564 quartz movement.

  • Condition: Good condition, some minor marks/hairlines on the case and sapphire crystal
  • Case size: 38.5mm diameter
  • Movement: Calibre OMEGA 4564 quartz
  • Bracelet length: up to 7-7.25 inch wrists depending on wrist shape
Posted at
Dec 22, 2025, 8:23 PM
Active
[WTT], [WTS] Omega Aqua Terra 41mm Blue Teakwood Dial for SMP300 White Dial or $5,400

[WTT], Omega Aqua Terra 41mm Blue Teakwood Dial for SMP300 White Dial or $5,400

A 41mm Omega Aqua Terra with blue teakwood dial, received as an inheritance and now being traded for a Seamaster Professional 300 or sold outright.

  • Condition: Excellent condition, minimal wear
  • Movement: Calibre 8900
  • Water Resistance: 150m depth rating
Posted at
Dec 22, 2025, 7:28 PM
Active