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] WTS- Omega Aqua terra Omega Seamaster Aqua Terra Shades 38mm
Ref - 220.10.38.20.10.002 Box and Papers £4195

WTS- Omega Aqua terra Omega Seamaster Aqua Terra Shades 38mm Ref - 220.10.38.20.10.002 Box and Papers £4195

This Omega Seamaster Aqua Terra Shades is a 38mm watch available for sale.

  • Length: 38mm diameter
  • Width: not specified
Posted at
Feb 5, 2026, 7:08 AM
Active
[WTS] Omega Aqua Terra Oman Khanjar Stamped ($8,950)

Omega Aqua Terra Oman Khanjar Stamped ($8,950)

Omega - 2201341211001 · $8,950
This Omega Aqua Terra features a 41mm case and comes with all three cards dated 2022, including the green dial. It's stamped with the Oman Khanjar emblem on the caseback.

  • Condition: pristine
  • Size: 41mm diameter
  • Case back stamp: Oman Khanjar emblem
  • Dial color: green
Posted at
Feb 4, 2026, 10:35 PM
Active
[WTS] Omega Aqua Terra 36mm - Blue Dial - Quartz - 2518.80 - Price Reduced!

Omega Aqua Terra 36mm - Blue Dial - Quartz - 2518.80 - Price Reduced!

Omega - 2518.80 · $1,695
This Omega Seamaster Aqua Terra Blue is a stunning piece with great case and bracelet shape. The watch comes as-is, with some very light marks on the crystal not visible during normal wear.

  • Condition: Good overall condition, minimal wear
  • Size: 36mm diameter
  • Water Resistance: Unknown
Posted at
Feb 4, 2026, 9:07 PM
Active
[WTS] Omega Aqua Terra Sandstone 220.10.38 38mm Cheapest - $3,650

Omega Aqua Terra Sandstone 220.10.38 38mm Cheapest - $3,650

Omega - 220.10.38 · $3,650
Up for sale is my Omega Seamaster Aqua Terra ref. 220.10.38 with a Calibre OMEGA 8800 movement. This watch measures at 38mm.

  • Condition: great condition, minor marks on case and crystal
  • Case size: 38mm diameter
  • Bracelet size: fits up to 7 inch wrists
  • Movement: Calibre OMEGA 8800
Posted at
Feb 4, 2026, 8:34 PM
Active
[WTS] ⚫️ Omega Aqua Terra Black Lacquer Dial 38mm ⚫️

⚫️ Omega Aqua Terra Black Lacquer Dial 38mm ⚫️

The Omega Aqua Terra is a perfectly balanced 38mm watch with 150m water resistance, powered by the METAS-certified Master Co-Axial Calibre 8800.

  • Condition: Excellent
  • Size: 38mm diameter
  • Water resistance: 150m
Posted at
Feb 4, 2026, 7:07 PM
Active
[WTS] 💎 2006 Omega Seamaster Aqua Terra 36mm 2518.50

💎 2006 Omega Seamaster Aqua Terra 36mm 2518.50

The Omega Seamaster Aqua Terra 36mm is a perfect GADA watch with light surface scratches and small dings, but in amazing shape.

Posted at
Feb 4, 2026, 5:28 PM
Active
[WTS] Omega Aqua Terra Small Seconds *Price Drop*

Omega Aqua Terra Small Seconds *Price Drop*

This Omega Aqua Terra Small Seconds is a beautiful watch that feels great on the wrist and keeps excellent time. It comes with an Omega travel box and an extra link.

  • Condition: Excellent
  • Water Resistance: 100m depth rating
  • Strap Length: 7.75 inches ( fits 7.75 inch wrist )
Posted at
Feb 4, 2026, 12:15 PM
Active
[WTS] Omega Seamaster Aqua Terra 150m Blue 220.10.41.21.03.002

Omega Seamaster Aqua Terra 150m Blue 220.10.41.21.03.002

A Omega Seamaster Aqua Terra 150m Blue, featuring a 7.25" bracelet.

  • Bracelet length: 7.25 inches
Posted at
Feb 3, 2026, 4:34 PM
Active
[WTS] Omega Seamaster Aqua Terra Blue Dial - 36mm - 2504.80 - Clean!

Omega Seamaster Aqua Terra Blue Dial - 36mm - 2504.80 - Clean!

Omega - 2504.80 · $2,650
The Omega Seamaster Aqua Terra features a 36.2mm case, navy blue sunburst dial, and Co-Axial automatic movement. It includes a domed sapphire crystal with anti-reflective coating and an elegant stainless steel bracelet.

  • Condition: Excellent overall condition with minimal wear
  • Case size: 36.2mm diameter
  • Crystal type: domed sapphire crystal with anti-reflective coating
Posted at
Feb 3, 2026, 1:39 PM
Active