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

OMEGA SEAMASTER AQUA TERRA 38.5 two tone full set

Omega - Aqua Terra 38.5 two tone · $4,000

This Omega Seamaster Aqua Terra is a discontinued model with a unique teak style dial, available as a full set including box and papers.

Condition: Mint
Case material: Yellow gold and stainless steel
Strap type: Leather
Buckle type: OEM Omega buckle

Posted at

Jan 22, 2026, 8:08 AM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra 41 Black Lacquer (220.10.41.21.01.002)

Omega - 220.10.41.21.01.002 · $4,875

Up for sale is a gently used Omega Seamaster Aqua Terra Black Lacquer, the 41mm version, in excellent working condition and good cosmetic condition. The watch has minor swirls, surface scratches, and signs of use on the case and bracelet.

Condition: Excellent / perfect working condition, good cosmetic condition with minor flaws
Case size: 41mm diameter
Thickness: 13.40mm
Lug to lug length: 48mm

Posted at

Jan 21, 2026, 8:26 PM

Active

View listing on r/WatchExchange

Omega Aqua Terra 220.10.41 Black Dial 41mm Full Kit 2023 - $3,990

Omega - 220.10.41.21 · $3,990

Up for sale is my very good condition Omega Seamaster Aqua Terra with a 41mm steel case, Calibre OMEGA 8900 automatic movement, and features a black dial.

Condition: Very good condition, minimal marks/hairlines on the case
Case size: 41mm diameter
Movement: Calibre OMEGA 8900 automatic movement
Bracelet type: Original steel Omega steel bracelet

Posted at

Jan 21, 2026, 8:00 PM

Active

View listing on r/WatchExchange