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

Reference 231.23.39.21.02.001

About this watch

The Omega Seamaster Aqua Terra 150M Master Co-Axial is a masterpiece of luxury watchmaking, combining elegance with functionality in a single timepiece. Crafted from a blend of stainless steel and red gold, this stunning watch exudes opulence without being gaudy. The silver-toned dial features stick and dot indexes paired with arrow-shaped hands, providing excellent legibility and making it an ideal companion for both casual and formal occasions. At the heart of this timepiece is the in-house Omega caliber 8500, a marvel of engineering known for its reliability and precision. With a power reserve of 60 hours, you don't have to worry about winding it every day. The Co-Axial escapement improves accuracy and reduces friction between parts, making it a true chronometer. This watch is perfect for professionals who need a timepiece that transitions seamlessly from the office to a dinner date, as well as collectors who appreciate Omega's rich history and innovation.
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Key Features

  • Omega caliber 8500 movement
  • Stainless Steel / Red Gold case material
  • Sapphire crystal glass
  • 150 meters water resistance
  • 38.5 mm diameter
  • Co-Axial escapement for improved accuracy
  • 60 hour power reserve

Specifications

Brand
Omega
Family
Aqua Terra
Model
Seamaster Aqua Terra 150M Master Co-Axial 38.5 Stainless Steel / Red Gold / Silver
Reference
231.23.39.21.02.001
Movement
8500
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
38.5mm
Dial Color
Silver
Crystal
Sapphire
Water Resistance
150

Current Listings

[WTS] Brand New Omega Seamaster Aqua Terra 150M Green Dial - Ref. 220.10.41.21.10.001

Brand New Omega Seamaster Aqua Terra 150M Green Dial - Ref. 220.10.41.21.10.001

This Omega Seamaster Aqua Terra 150M features a green dial, comes with a full set of accessories, and is guaranteed to be 100% authentic.

  • Condition: Brand new, unworn
  • Set contents: Omega box, outer box, booklet, warranty card dated 2021, chronometer card, pictogram card, hangtag
  • Year: 2021
Posted at
Jan 28, 2026, 2:52 PM
Active
[WTS] Omega Seamaster Aqua Terra “Skyfall” Black Teak 38.5mm|Ref. 231.10.39.21.01.001 | Discontinued | Full Set | Mint Condition| 2023 | Active Factory Warranty

Omega Seamaster Aqua Terra “Skyfall” Black Teak 38.5mm|Ref. 231.10.39.21.01.001 | Discontinued | Full Set | Mint Condition| 2023 | Active Factory Warranty

A discontinued Omega Seamaster Aqua Terra “Skyfall” Black Teak in a refined and timeless design, featuring a black teak-concept dial and powered by Omega’s Co-Axial Calibre 8500.

  • Condition: Mint condition
  • Case size: 38.5mm diameter
  • Bracelet length: up to 18cm
  • Movement: in-house Co-Axial Calibre 8500
Posted at
Jan 28, 2026, 9:30 AM
Active
[WTS] Omega Seamaster Aqua Terra 220.10.34.20.10.003 34mm Shell Pink Box Papers

Omega Seamaster Aqua Terra 220.10.34.20.10.003 34mm Shell Pink Box Papers

The Omega Seamaster Aqua Terra Shades features a 34mm stainless steel case with a shell pink dial and 18K white gold indexes. It is powered by the Calibre 8800, Co-Axial Master Chronometer with a 55-hour power reserve and has 150m water resistance.

  • Condition: Excellent, near mint condition with faint handling marks on the case and bracelet
  • Case size: 34mm diameter
  • Water resistance: 150m depth rating
  • Bracelet type: fully linked stainless steel bracelet
Posted at
Jan 27, 2026, 4:57 PM
Active
[WTS] Omega Aqua Terra “Ryder Cup” Special Edition 41.5mm

Omega Aqua Terra “Ryder Cup” Special Edition 41.5mm

The Omega Aqua Terra 150M ‘Ryder Cup’ Special Edition is a 41.5mm stainless steel automatic watch released to commemorate the 2015/2016 Ryder Cup, featuring a unique silver, textured dial with red and blue accents, an 18kt yellow gold seconds hand, and the anti-magnetic Co-Axial caliber 8500.

  • Condition: Excellent Condition
  • Case Size: 41.5mm
  • Diameter: 41.5mm
  • Wrist Size Compatible: 7.75"
Posted at
Jan 27, 2026, 2:17 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

This Omega Seamaster Aqua Terra 150m Blue is a high-end watch with a 7.25 inch bracelet, and comes with all three cards of documentation.

  • Condition: Mint with papers
  • Bracelet length: 7.25 inches
Posted at
Jan 27, 2026, 10:10 AM
Active
[WTS] Omega Seamaster Aqua Terra - ‘Blue Wave’ Gold Accents

Omega Seamaster Aqua Terra - ‘Blue Wave’ Gold Accents

Omega - 23110422103006 · $5,250
This Omega Seamaster Aqua Terra features a striking blue dial with wave pattern and 18K yellow gold accents, housed in a 41.5mm stainless steel case on a stainless steel bracelet.

  • Condition: Excellent
  • Case size: 41.5mm
  • Material: Stainless steel
  • Bracelet material: Stainless steel
Posted at
Jan 25, 2026, 7:31 PM
Active
[WTS] Omega Seamaster Aqua Terra 150M 41.5 mm, Cards Included... Ref: 231.10.42.21.03.003

Omega Seamaster Aqua Terra 150M 41.5 mm, Cards Included... Ref: 231.10.42.21.03.003

Aqua Terra 150M, 41.5 mm in diameter

  • Case size: 41.5mm
  • Shipping method: Fedex with insurance
Posted at
Jan 25, 2026, 3:47 PM
Active
[WTS] Omega Aqua Terra 2504.50 with Bracelet // 36mm // 150m WR // 2025 Full Service

Omega Aqua Terra 2504.50 with Bracelet // 36mm // 150m WR // 2025 Full Service

Omega - 2504.50 · $2,700
A modern classic, the Omega Aqua Terra with a black dial and co-axial movement is perfect for everyday wear, suitable for various activities such as swimming or formal events.

  • Condition: Great, light hairlines throughout but no major blemishes
  • Case Material: Stainless steel
  • Diameter: 36.2mm
  • Lug To Lug: 44mm
Posted at
Jan 25, 2026, 3:11 PM
Active