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

Reference 231.23.39.21.51.001

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

About this watch

The Omega Seamaster Aqua Terra 150M Co-Axial 38.5 is a masterful blend of style and functionality. This luxurious timepiece boasts a stunning combination of red gold and stainless steel, giving it a sporty yet elegant appearance. The round case measures 38.50 mm in diameter, making it suitable for both men and women. The black dial features gem-set indexes that catch the light beautifully, adding a touch of sophistication to the overall design. Arrow-shaped hands enhance visibility while also adding a modern twist to its classic face. With a water resistance of up to 150 meters, this watch is designed for function as well as form. But what truly sets it apart is the Omega caliber 8500 movement, a certified chronometer that offers an impressive 60 hours of power reserve. The Co-Axial escapement reduces friction, extending the longevity of the watch's performance. Whether you're in a business meeting or enjoying a casual day out, this watch adapts beautifully to any scenario. It's a conversation starter, and with its exquisite design, reliable movement, and versatility, it easily earns its place in the coveted collection of luxury timepieces.
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Key Features

  • Omega caliber 8500 movement
  • Certified chronometer
  • 60 hours power reserve
  • Co-Axial escapement
  • Water resistance up to 150 meters
  • Red gold and stainless steel construction
  • Sapphire glass
  • 38.50 mm diameter case

Specifications

Brand
Omega
Family
Aqua Terra
Model
Seamaster Aqua Terra 150M Co-Axial 38.5 Stainless Steel / Red Gold / Black
Reference
231.23.39.21.51.001
Movement
8500
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
38.5mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
150

Current Listings

[WTS] 2025 Omega Seamaster Aqua Terra Green 220.10.41.21.10.001 41mm Full Set - $4,995

2025 Omega Seamaster Aqua Terra Green 220.10.41.21.10.001 41mm Full Set - $4,995

Omega - 220.10.41.21.10.001 · $4,995
This is a 2025 Omega Seamaster Aqua Terra Green, featuring a 41mm case size.

  • Condition: Excellent condition with minimal signs of wear
  • Case Size: 41mm diameter
  • Year: 2025
Posted at
May 21, 2026, 7:32 PM
Active
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[WTS] Omega Seamaster Aqua Terra Co-Axial - 41mm Turquoise Blue - 2025 Full Set - 220.10.41.21.03.006 - $5,650

Omega Seamaster Aqua Terra Co-Axial - 41mm Turquoise Blue - 2025 Full Set - 220.10.41.21.03.006 - $5,650

Omega - 220.10.41.21.03.006 · $5,650
This stunning Omega Seamaster Aqua Terra features a Turquoise Blue dial and is the 41mm version, sitting nicely on the wrist.

  • Condition: Mint condition
  • Size: 41mm diameter
  • Warranty Until: 2029
Posted at
May 21, 2026, 6:32 PM
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[WTS] 36mm Omega Seamaster Aqua Terra Automatic Co-Axial 2504.30 - $2500 SHIPPED

36mm Omega Seamaster Aqua Terra Automatic Co-Axial 2504.30 - $2500 SHIPPED

Omega - 2504.30 · $2,500
This is a 36mm Omega Seamaster Aqua Terra featuring an automatic co-axial movement, striking silver sunburst dial, and applied indexes.

  • Condition: Good overall condition with normal wear on case and bracelet
  • Movement: automatic co-axial 2500
  • Bracelet size compatibility: up to 7.25" wrist
  • Case diameter: 36mm
Posted at
May 21, 2026, 6:07 PM
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[WTS] Omega Seamaster Aqua Terra 38.5mm White Teak Dial Ref. 231.10.39.21.02.001 | Box & Instrucstions | Fresh Service | $2,899 Shipped

Omega Seamaster Aqua Terra 38.5mm White Teak Dial Ref. 231.10.39.21.02.001 | Box & Instrucstions | Fresh Service | $2,899 Shipped

Omega - 231.10.39.21.02.001 · $2,899
This Omega Seamaster Aqua Terra features a beautiful white teak-pattern dial with applied faceted indices and signature blue accents, making it a clean and versatile timepiece that works equally well as a daily wearer or dressier option. The watch has been freshly serviced and is running strong with excellent timegrapher performance.

  • Condition: Very good overall, light signs of honest wear consistent with age
  • Case size: 38.5mm
  • Lug-to-lug: 46mm
  • Thickness: 12.8mm
Posted at
May 21, 2026, 11:45 AM
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[WTS] omega Aqua Terra 41 on black leather

omega Aqua Terra 41 on black leather

Omega - 220.13.41.21.01.001 · $3,000
a pre-owned Omega Aqua Terra 41 on black leather.

  • Condition: shows signs of wear
Posted at
May 21, 2026, 11:11 AM
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[WTS] Omega Seamaster Aqua Terra 231.10.39.21.01.001 Black Teak 38.5mm - $2,590

Omega Seamaster Aqua Terra 231.10.39.21.01.001 Black Teak 38.5mm - $2,590

Omega - 231.10.39.21.01.001 · $2,590
Up for sale is my great condition Omega Seamaster Aqua Terra, measuring at 38.5mm and featuring an automatic Omega Calibre 8500 movement.

  • Condition: Very good condition, minor marks/hairlines
  • Case size: 38.5mm diameter
  • Movement: automatic Omega Calibre 8500
  • Bracelet: original Omega steel bracelet
Posted at
May 20, 2026, 9:55 PM
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[WTS] Omega Aqua Terra 220.10.41.21.01.001

Omega Aqua Terra 220.10.41.21.01.001

Omega - 220.10.41.21.01.001 · $4,150
The Omega Aqua Terra is being sold with its complete set, except for the international warranty card. The watch has been checked by an in-house watchmaking team and comes with a master chronometer card.

  • Condition: great carefully worn condition
  • Serial Number: available upon request
  • Master Chronometer Card: included with the purchase
  • Pictograms: included with the purchase
Posted at
May 20, 2026, 6:54 PM
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[WTS] Omega Seamaster Aqua Terra - 231.10.39.21.02.001 - With Papers - $3,250 ✈️

Omega Seamaster Aqua Terra - 231.10.39.21.02.001 - With Papers - $3,250 ✈️

Omega - 231.10.39.21.02.001 · $3,250
This Omega Seamaster Aqua Terra is a high-end watch that combines style and functionality.

  • Papers: included
Posted at
May 20, 2026, 6:47 PM
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[WTS] Omega Seamaster Aqua Terra – Annual Calendar – 38.5mm Blue Dial

Omega Seamaster Aqua Terra – Annual Calendar – 38.5mm Blue Dial

Omega - 23110392203001 · $4,200
A versatile Omega Seamaster Aqua Terra Annual Calendar watch in blue dial that strikes a balance between technical sophistication and everyday wearability, featuring an annual calendar complication and clean design.

  • Condition: Excellent
  • Case Size: 38.5mm
  • Movement: Omega Co-Axial calibre 8601
Posted at
May 20, 2026, 12:56 PM
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