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.
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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] Omega Seamaster Aqua Terra 41 Black Lacquer (220.10.41.21.01.002)

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

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
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[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, a 38mm watch with an Calibre OMEGA 8800 movement.

  • Condition: great, some minor marks on case and crystal
  • Case size: 38mm diameter
  • Bracelet length: fits up to 7 inch wrists depending on wrist shape
  • Shipping: Fedex Priority Shipping from Philippines, 3-5 days globally
Posted at
Jan 21, 2026, 7:48 PM
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[WTS] Omega Seamaster Aqua Terra "Skyfall" 38.5mm Co-Axial ref. 231.10.39.21.03.001

Omega Seamaster Aqua Terra "Skyfall" 38.5mm Co-Axial ref. 231.10.39.21.03.001

Omega - 231.10.39.21.03.001 · $3,550
This listing is for an Omega Seamaster Aqua Terra 'Skyfall' Co-Axial reference 231.10.39.21.03.001, a 38.5mm watch with a unique design.

  • Case size: 38.5mm
  • Shipping location: NJ USA
Posted at
Jan 21, 2026, 7:22 PM
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[WTS] Omega Seamaster Aqua Terra 231.10.39.60.02.001 38mm Stainless Steel In Original Box $1500

Omega Seamaster Aqua Terra 231.10.39.60.02.001 38mm Stainless Steel In Original Box $1500

Omega - 231.10.39.60.02.001 · $1,500
A stainless steel Omega Seamaster Aqua Terra in original box, featuring a 38mm case width and quartz movement.

  • Condition: Preowned with some wear, scratches and marks
  • Case Width: 38.5mm (without crown)
  • Band Type: Stainless steel
  • Band Condition: Preowned
Posted at
Jan 21, 2026, 6:08 PM
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[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

Omega - 220.10.41.21.03.002 · $3,999
This Omega Seamaster Aqua Terra is a blue watch with a 150m water resistance rating.

  • Bracelet length: 7.25 inches
Posted at
Jan 19, 2026, 7:29 PM
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[WTS] Omega Seamaster Aqua Terra - 38.5mm - 231.10.39.60.02.001 - Clean!

Omega Seamaster Aqua Terra - 38.5mm - 231.10.39.60.02.001 - Clean!

Omega - 231.10.39.60.02.001 · $1,895
This Omega Seamaster Aqua Terra features a 38.5mm case with a Caliber 4564 quartz movement, making it an easy watch to wear and maintain.

  • Case size: 38.5mm
  • Bracelet type: original
  • Wrist fit: up to 6.75 inch
Posted at
Jan 19, 2026, 3:00 PM
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[WTS] Omega Seamaster Aqua Terra Blue Dial Auto - 36mm - 2504.80 - Clean!

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

Omega - 2504.80 · $2,650
This Omega Seamaster Aqua Terra features a 36.2mm case with a navy blue sunburst dial and Co-Axial automatic movement.

  • Condition: Excellent overall condition with minimal wear
  • Case size: 36.2mm
  • Movement type: Co-Axial automatic
  • Crystal type: domed sapphire with anti-reflective coating
Posted at
Jan 19, 2026, 2:03 PM
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[WTS] Omega Seamaster Aqua Terra “Skyfall” Black Teak 38.5mm|Ref. 231.10.39.21.01.001 | Discontinued | Full Set | Mint Condition

Omega Seamaster Aqua Terra “Skyfall” Black Teak 38.5mm|Ref. 231.10.39.21.01.001 | Discontinued | Full Set | Mint Condition

Omega - 231.10.39.21.01.001 · $4,250
This Omega Aqua Terra “Skyfall” features a discontinued black “teak-concept” dial, in-house Co-Axial Calibre 8500 movement with 60-hour power reserve and anti-magnetic performance up to 15,000 gauss. At 38.5mm, it strikes the perfect balance between refined, timeless design and wearability.

  • Condition: Mint Condition
  • Diameter: 38.5mm
  • Movement: Co-Axial Calibre 8500
  • Bracelet size: up to an 18cm wrist
Posted at
Jan 19, 2026, 1:50 PM
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