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

Reference 231.23.39.21.06.001

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.
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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

[WTS] 2023 OMEGA Aqua Terra Worldtimer GMT Titanium - 220.92.43.22.99.001 - Full Set Extra OEM NATO Mint

2023 OMEGA Aqua Terra Worldtimer GMT Titanium - 220.92.43.22.99.001 - Full Set Extra OEM NATO Mint

The Aqua Terra Worldtimer is a grade 2 titanium timepiece with a matte finish, black ceramic bezel, and laser etched dial featuring continents and indices. It's mounted on a black rubber integrated strap.

  • Condition: Very excellent pre-owned condition
  • Case size: 43mm diameter
  • Water resistance: 150m depth rating
  • Movement: Co-Axial Master Chronometer Calibre 8938 (METAS certified)
Posted at
Apr 8, 2026, 7:32 PM
Active
[WTS] Omega Seamaster Aqua Terra Worldtimer “Summer Blue”

Omega Seamaster Aqua Terra Worldtimer “Summer Blue”

This Omega Seamaster Aqua Terra Worldtimer features a stunning 'Summer Blue' dial with laser-ablated continents, showcasing one of the most visually impressive modern Omega pieces.

  • Condition: Brand new old stock and unworn
  • Case size: 43mm
  • Material: stainless steel
  • Movement: Omega Co-Axial Master Chronometer Caliber 8938
Posted at
Apr 8, 2026, 6:39 PM
Active
[WTS] Omega - 2502.34.00 Seamaster Aqua Terra 150M Co-Axial 42.2 Stainless Steel

Omega - 2502.34.00 Seamaster Aqua Terra 150M Co-Axial 42.2 Stainless Steel

Omega - 2502.34.00 · $4,500
The Omega Seamaster Aqua Terra 150M Co-Axial features a 42.2mm stainless steel case and pristine white dial, exemplifying Omega's commitment to robust performance and elegant design.

  • Condition: Very good
  • Case size: 41MM diameter
  • Bezel material: Stainless
  • Movement type: Omega caliber 2500 Co-Axial Escapement Chronometer
Posted at
Apr 8, 2026, 5:56 PM
Active
[WTS] 2023 Omega Seamaster Aqua Terra Skyfall Blue 231.10.42.21.03.003 41.5mm Full Set - $4,995

2023 Omega Seamaster Aqua Terra Skyfall Blue 231.10.42.21.03.003 41.5mm Full Set - $4,995

Up for sale is a Omega Seamaster Aqua Terra Skyfall Blue, a 2023 model featuring a 41.5mm diameter case.

  • Condition: Excellent condition with minimal signs of wear
  • Case Size: 41.5mm diameter
  • Movement Testing: tested on a timegrapher
Posted at
Apr 8, 2026, 12:55 PM
Active
[WTS] 2024 Omega Seamaster Aqua Terra Terracotta Shades 38m Red Dial on Bracelet 220.10.38.20.13.003 B+P

2024 Omega Seamaster Aqua Terra Terracotta Shades 38m Red Dial on Bracelet 220.10.38.20.13.003 B+P

The Omega Seamaster Aqua Terra Shades 220.10.38.20.13.003 features a rich red terracotta dial on a 38mm stainless steel case, with a Master Chronometer movement delivering accuracy and reliability.

  • Condition: Mint condition, almost no signs of wear
  • Case Diameter: 38mm
  • Bezel Material: Stainless Steel
  • Dial Color: Red
Posted at
Apr 8, 2026, 12:47 PM
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[WTS] Omega Seamaster Aqua Terra 231.10.39.21.01.001 Black Teak 38.5mm  - $3,290

Omega Seamaster Aqua Terra 231.10.39.21.01.001 Black Teak 38.5mm - $3,290

Up for sale is my great condition Omega Seamaster Aqua Terra 231.10.39.21.01.001 with a steel case on original Omega steel bracelet.

  • Condition: very good for its age, minimal marks/hairlines on case, caseback, and bracelet
  • Movement: Omega Calibre 8500
  • Case size: 38.5mm diameter
  • Bracelet type: original Omega steel bracelet
Posted at
Apr 7, 2026, 9:27 PM
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[WTS] 2025 Omega Aqua Terra 150M 41mm 220.10.41.21.03.006

2025 Omega Aqua Terra 150M 41mm 220.10.41.21.03.006

  • Year: 2025
  • Depth rating: 150m
  • Case size: 41mm
Posted at
Apr 7, 2026, 9:04 PM
Active
[WTS] Omega Seamaster Aqua Terra 150M 220.10.41.21.03.001 – Blue Teak Dial – VG – Box & Papers

Omega Seamaster Aqua Terra 150M 220.10.41.21.03.001 – Blue Teak Dial – VG – Box & Papers

  • Condition: Very Good
  • Water Resistance: 150m
  • Power Reserve: ~60 hours
  • Case Size: 41mm diameter
Posted at
Apr 7, 2026, 2:24 PM
Active
[WTS] Omega Seamaster Aqua Terra 231.10.42.21.02.001 - Price Reduced!

Omega Seamaster Aqua Terra 231.10.42.21.02.001 - Price Reduced!

This is a Watch-only example of the Omega Seamaster Aqua Terra in White Dial, model number 231.10.42.21.02.001, featuring a 41.5mm size and excellent condition.

  • Condition: Very clean pre-owned condition with light wear throughout.
  • Size: 41.5mm
Posted at
Apr 6, 2026, 6:21 PM
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