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 Co-Axial 42mm 231.10.42.21.06.001 Gray

Omega Seamaster Aqua Terra Co-Axial 42mm 231.10.42.21.06.001 Gray

This Omega Seamaster Aqua Terra Co-Axial is a 42mm watch with a gray color scheme.

  • Condition: Fresh service, used
  • Bracelet length: 7.25 inches
Posted at
Oct 22, 2025, 8:14 PM
Active
[WTS] Omega Aqua Terra 41mm 220.10.41.21.03.004 - Blue Teak Dial - Price Reduced ‼️

Omega Aqua Terra 41mm 220.10.41.21.03.004 - Blue Teak Dial - Price Reduced ‼️

This Omega Aqua Terra features a stunning blue teak dial and is in overall very clean condition with some light marks on the crystal.

  • Condition: pretty good, light wear on bracelet, lugs, and clasp
  • Wrist size compatible: up to 7.25 inches
  • Payment methods accepted: bank wire, zelle, paypal (F&F)
Posted at
Oct 22, 2025, 4:31 PM
Active
[WTS] [US] Omega Seamaster Aqua Terra 150m Master Chronometer GMT - Complete Set 2023

[US] Omega Seamaster Aqua Terra 150m Master Chronometer GMT - Complete Set 2023

This Omega Seamaster Aqua Terra 150m Master Chronometer GMT is a complete set from 2023, featuring a 41mm case with a black dial and stainless steel bracelet.

  • Year: 2023
Posted at
Oct 22, 2025, 1:11 PM
Active
[WTS] Omega Seamaster Aqua Terra "Saffron"

Omega Seamaster Aqua Terra "Saffron"

Omega - 2201.0382012001 · $4,300
The Omega Seamaster Aqua Terra 'Saffron' is a beautiful watch with a saffron dial that sparkles in the light. It features a 38mm diameter dial and comes with box and papers.

  • Condition: Good, with typical hairline scratches
  • Case size: 38mm
  • Material: stainless steel
  • Crystal material: sapphire
Posted at
Oct 22, 2025, 11:51 AM
Active
[WTS] Omega Aqua Terra 2517.30

Omega Aqua Terra 2517.30

Omega - 2517.30.00 · $1,695
A timeless classic that perfectly blends sporty elegance with everyday versatility, featuring a silver dial and 39.2 mm case.

  • Condition: Excellent overall
  • Case dimensions: 39.2 mm x 46.5mm x 11mm
  • Lug width: 20mm
  • Case material: Stainless Steel
Posted at
Oct 22, 2025, 11:49 AM
Active
[WTS] Omega Seamaster Aqua Terra 2517.50.00 Black Dial 150M Mens Watch And Papers $1600

Omega Seamaster Aqua Terra 2517.50.00 Black Dial 150M Mens Watch And Papers $1600

Omega - 2517.50.00 · $1,600
This Omega Seamaster Aqua Terra features a black dial and is powered by a quartz movement. The case width is 39mm, and it has a stainless steel band.

  • Condition: Pre-owned, with little wear & marks
  • Case width: 39mm (without crown)
  • Band size: up to 19cm
Posted at
Oct 22, 2025, 7:19 AM
Active
[WTS] Omega Aqua Terra 38 Black Teak

Omega Aqua Terra 38 Black Teak

Omega - Aqua Terra 38 · $4,300
For Sale is an Omega Aqua Terra 38 black teak dial which is sold out online.

  • Purchase Date: late September
  • Payment Methods: PayPal GS or FF, Zelle, Venmo
Posted at
Oct 21, 2025, 11:04 PM
Active
[WTS] Omega Seamaster Aqua Terra 231.10.39 38.5mm Quartz Grey Teak FULL KIT  - $1,850

Omega Seamaster Aqua Terra 231.10.39 38.5mm Quartz Grey Teak FULL KIT - $1,850

Omega - 231.10.39 · $1,850
This Omega Seamaster Aqua Terra is a quartz movement watch with a Calibre OMEGA 4564 and features a steel case on an original steel Omega steel bracelet. It measures at 39mm and has a sapphire crystal.

  • Condition: Very good condition
  • Case size: 38.5mm diameter
  • Movement type: Quartz
  • Depth rating: 150m
Posted at
Oct 21, 2025, 9:35 PM
Active
[WTS] Omega Seamaster Aqua Terra 150 M – 38 mm (Ref. 220.10.38.20.03.005)

Omega Seamaster Aqua Terra 150 M – 38 mm (Ref. 220.10.38.20.03.005)

This Omega Seamaster Aqua Terra 150 M is a versatile timepiece that perfectly balances sportiness and sophistication, making it ideal for daily wear.

  • Condition: Very good condition with light surface scratches
  • Case size: 38mm diameter
  • Movement: Master Chronometer-certified automatic calibre 8800 with approximately 55 hours power reserve
  • Water resistance: 150m (15 ATM)
Posted at
Oct 21, 2025, 9:15 PM
Active