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

Reference 231.20.39.21.02.001

About this watch

The Omega Seamaster Aqua Terra 150m Master Co-Axial is a marvel of Swiss watchmaking, offering an exquisite blend of style and performance. Its stunning stainless steel and red gold case strikes a perfect balance between boldness and wearability, while the silver dial features stick and dot indexes for clean readability. The in-house caliber 8500 movement, featuring a Co-Axial escapement, reduces friction and enhances precision, making it a reliable companion for those who lead active lifestyles. With a water resistance of 150 meters and a certified chronometer status, this timepiece is designed to keep impeccable time while withstanding the rigors of everyday wear. Whether you're in the boardroom or on the beach, this watch is sure to catch eyes and reflect your taste for quality. Its blend of elegance and functionality makes it perfect for anyone who values style and precision.
Buy Now on Jomashop
This is an affiliate link

Key Features

  • Stainless Steel and Red Gold Case
  • In-House Caliber 8500 Movement
  • 150m Water Resistance
  • Certified Chronometer Status
  • Sapphire Glass
  • 38.50mm Diameter
  • 60-hour Power Reserve

Specifications

Brand
Omega
Family
Aqua Terra
Model
Seamaster Aqua Terra 150m Master Co-Axial 38.5 Stainless Steel / Red Gold / Silver / Bracelet
Reference
231.20.39.21.02.001
Movement
8500
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
38.5mm
Dial Color
Silver
Crystal
Sapphire
Water Resistance
150

Current Listings

[WTS] Omega Seamaster Aqua Terra Ref 220.10.41.21.02.001 - 41mm FULL SET! -$5500

Omega Seamaster Aqua Terra Ref 220.10.41.21.02.001 - 41mm FULL SET! -$5500

A used Omega Seamaster Aqua Terra with a 41mm case size, sold as part of a full set including box and papers.

  • Condition: Pre-owned
  • Case size: 41mm
  • Box: true
Posted at
Apr 18, 2026, 5:54 PM
Active
[WTS] 2023 Omega Seamaster Aqua Terra Skyfall Blue 231.10.42.21.03.003 41.5mm Full Set - $4,795

2023 Omega Seamaster Aqua Terra Skyfall Blue 231.10.42.21.03.003 41.5mm Full Set - $4,795

Up for sale is a **Omega Seamaster Aqua Terra Skyfall Blue** in excellent condition, thoroughly tested on a timegrapher and running well.

  • Condition: Excellent condition with minimal signs of wear
  • Case size: 41.5mm diameter
  • Year: 2023
Posted at
Apr 18, 2026, 5:15 PM
Active
[WTS] Omega Aqua Terra 2503.50

Omega Aqua Terra 2503.50

Omega - 2503.50 · $2,650
This Omega Aqua Terra 2503.50 is an automatic watch that has been serviced by the manufacturer, Omega.

  • Condition: Great condition with minor wear
  • Serviced: yes, by Omega
  • Payment Methods: crypto, all other methods except PayPal
  • Accepts Trades: yes, only for specified brands
Posted at
Apr 18, 2026, 2:30 PM
Active
[WTS] Omega Seamaster Aqua Terra 150M 40mm Teal Gradient Dial 215.30.40.20.03.002 - Full Kit - $5,900

Omega Seamaster Aqua Terra 150M 40mm Teal Gradient Dial 215.30.40.20.03.002 - Full Kit - $5,900

This Omega Seamaster Aqua Terra features a 40mm stainless steel case with a teal gradient dial, Co-Axial Master Chronometer movement, and a screw-down crown.

  • Condition: Very good pre-owned condition
  • Case diameter: 40mm
  • Water resistance depth rating: 150m
Posted at
Apr 18, 2026, 2:06 PM
Active
[WTS] Omega Aqua Terra 36mm Reference 2504.80 Deep blue sunray dial slim caliber 1120 all original (serviced) $2400

Omega Aqua Terra 36mm Reference 2504.80 Deep blue sunray dial slim caliber 1120 all original (serviced) $2400

Omega - 2504.80 · $2,400
A Omega Aqua Terra with a 36mm case, deep blue sunray dial and slim caliber 1120.

  • Condition: pre-owned, serviced
  • Case diameter: 36mm
Posted at
Apr 18, 2026, 1:38 PM
Active
[WTS] OMEGA Seamaster Aqua Terra Worldtimer "Summer Blue" Ref. 220.10.43.22.03.002 - ULTIMATE SET! 🔥$9,600🔥

OMEGA Seamaster Aqua Terra Worldtimer "Summer Blue" Ref. 220.10.43.22.03.002 - ULTIMATE SET! 🔥$9,600🔥

A sophisticated travel companion that puts the world on your wrist, featuring a 43mm stainless steel case, a dial showcasing a vision of Earth, and a Master Chronometer Calibre 8938.

  • Condition: VERY GOOD (some light scratches on case and bracelet)
  • Case diameter: 43mm
  • Bracelet size: ~7"
Posted at
Apr 17, 2026, 10:05 PM
Active
[WTS] OMEGA Seamaster Aqua Terra 150M Terracotta Ref. 220.10.38.20.13.003 - ULTIMATE SET! 🔥$6,100🔥

OMEGA Seamaster Aqua Terra 150M Terracotta Ref. 220.10.38.20.13.003 - ULTIMATE SET! 🔥$6,100🔥

The OMEGA Seamaster Aqua Terra Ref. 220.10.38.20.13.003 features a 38mm stainless steel case with a Terracotta dial, powered by the Co-Axial Master Chronometer Calibre 8800.

  • Condition: UNWORN
  • Diameter: 38mm
  • Bracelet length: ~7 inches
  • Movement: Co-Axial Master Chronometer Calibre 8800
Posted at
Apr 17, 2026, 10:02 PM
Active
[WTS] Omega Seamaster Aqua Terra – James Bond SkyFall – 38.5mm

Omega Seamaster Aqua Terra – James Bond SkyFall – 38.5mm

This Omega Seamaster Aqua Terra 150M 'SKYFALL' is a James Bond edition watch with a blue teak pattern dial, stainless steel case, and Omega Co-Axial 8500 calibre automatic movement. It features a 38.5mm diameter.

  • Condition: Excellent
  • Case size: 38.5mm
  • Movement: Omega Co-Axial 8500 calibre
Posted at
Apr 17, 2026, 6:01 PM
Active
[wts] 2024 Omega Seamaster Aqua Terra
220.10.41.21.03.002

$5399

2024 Omega Seamaster Aqua Terra 220.10.41.21.03.002 $5399

2024 Omega Seamaster Aqua Terra with a blue dial and 150M water resistance. The watch is in good condition with light wear on the bracelet and clasp.

  • Condition: Pre Owned, Cosmetic Condition: 8/10
  • Case size: 41mm diameter
  • Movement: 8900 caliber
  • Power reserve: 60 hours
Posted at
Apr 17, 2026, 12:31 PM
Active