Omega Aqua Terra Seamaster Aqua Terra 150M Co-Axial 38.5 Stainless Steel / Red Gold / Grey

Reference 231.23.39.21.06.001

Omega Seamaster Aqua Terra 150M Co-Axial 38.5 Stainless Steel / Red Gold / Grey

About this watch

The Omega Seamaster Aqua Terra 150M Co-Axial 38.5 is a luxurious timepiece that embodies precision, craftsmanship, and style. This stunning watch boasts an exquisite combination of stainless steel and red gold construction, giving it a luxurious yet durable appeal. The 38.5mm round shape strikes a perfect balance between boldness and subtlety, making it suitable for both men and women. The grey dial is sophisticated and versatile, pairing beautifully with various outfits. The open case back allows you to admire the intricate Omega caliber 8500 movement, which features two barrels providing a robust 60-hour power reserve. This chronometer has undergone rigorous testing to ensure its accuracy, meeting the standards set by the Swiss Official Chronometer Testing Institute (COSC). With a water resistance of 150 meters and an easy-to-read date function, this watch is perfect for daily wear. Its classic design ensures it won't go out of style, making it a timeless addition to any collection. For watch collectors, the Omega Seamaster Aqua Terra 150M Co-Axial 38.5 is a must-have, combining innovative movement, luxury materials, and stunning aesthetic. This remarkable choice offers both functionality and style, standing out among its peers.

Buy Now on Jomashop

This is an affiliate link

Key Features

Omega Caliber 8500 Movement
60-Hour Power Reserve
150M Water Resistance
Grey Dial with Stick and Dot Indexes
Red Gold Accents on Stainless Steel Case
Open Case Back for Visible Movement
Chronometer Certified by COSC

Specifications

Brand

Omega

Family

Aqua Terra

Model

Seamaster Aqua Terra 150M Co-Axial 38.5 Stainless Steel / Red Gold / Grey

Reference

231.23.39.21.06.001

Movement

8500

Movement Features

Hours, Minutes, Seconds
Date
Chronometer, Co-Axial Escapement

Case

38.5mm

Dial Color

Grey

Crystal

Sapphire

Water Resistance

150

Current Listings

2012 Omega Seamaster Aqua Terra 231.23.39.21.06.001

Omega - 231.23.39.21.06.001

2012 Omega Seamaster Aqua Terra for sale

Posted at

Apr 19, 2026, 11:54 AM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra 15,000 Gauss 231.10.42.21.01.002 Full Set 2019

Omega - 231.10.42.21.01.002 · $5,900

The Omega Seamaster Aqua Terra >15,000 Gauss is a distinctive modern Aqua Terra reference known for its black textured dial and impressive anti-magnetic capability. It measures 41.5mm in stainless steel and features Omega's Co-Axial movement.

Condition: Excellent, with no visible scratches and excellent crystal condition
Case Material: Stainless Steel
Case Size: 41.5mm diameter
Movement: Co-Axial movement

Posted at

Apr 19, 2026, 6:08 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra – 'Blue Wave’ – Gold Accents – Complete Set

Omega - 23110422103006 · $5,250

The Omega Seamaster Aqua Terra 'Blue Wave' features a blue dial with wave pattern, 18K yellow gold hands and indexes. It has a stainless steel case with a 41.5mm diameter and is powered by the Master Co-Axial calibre 8500.

Condition: Excellent all-around condition
Case size: 41.5mm diameter
Movement: Omega Master Co-Axial calibre 8500
Water resistance: 150M / 15 bar

Posted at

Apr 19, 2026, 2:04 PM

Active

View listing on r/WatchExchange

2024 Omega Seamaster Aqua Terra Worldtimer Green Dial Box & Papers

Omega - 220.30.43.22.10.001 · $7,899

The Omega Aqua Terra Worldtimer features a green dial with a laser-etched world map center, making it a conversation starter.

Condition: Good pre-owned condition with light wear on the bracelet & clasp.
Diameter: 43mm

Posted at

Apr 19, 2026, 11:16 AM

Active

View listing on r/WatchExchange

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

Omega - 220.10.41.21.02.001 · $5,500

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

View listing on r/WatchExchange

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

Omega - 231.10.42.21.03.003 · $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

View listing on r/WatchExchange

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

View listing on r/WatchExchange

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

Omega - 215.30.40.20.03.002 · $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

View listing on r/WatchExchange