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

Reference 231.20.39.21.02.001

About this watch

The Omega Seamaster Aqua Terra 150m Master Co-Axial is a marvel of Swiss watchmaking, offering an exquisite blend of style and performance. Its stunning stainless steel and red gold case strikes a perfect balance between boldness and wearability, while the silver dial features stick and dot indexes for clean readability. The in-house caliber 8500 movement, featuring a Co-Axial escapement, reduces friction and enhances precision, making it a reliable companion for those who lead active lifestyles. With a water resistance of 150 meters and a certified chronometer status, this timepiece is designed to keep impeccable time while withstanding the rigors of everyday wear. Whether you're in the boardroom or on the beach, this watch is sure to catch eyes and reflect your taste for quality. Its blend of elegance and functionality makes it perfect for anyone who values style and precision.
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Key Features

  • Stainless Steel and Red Gold Case
  • In-House Caliber 8500 Movement
  • 150m Water Resistance
  • Certified Chronometer Status
  • Sapphire Glass
  • 38.50mm Diameter
  • 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 / Bracelet
Reference
231.20.39.21.02.001
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] 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
[WTS] Omega Seamaster Aqua Terra 150m | Calibre 8500 Co-Axial | 231.10.39.21.06.001

Omega Seamaster Aqua Terra 150m | Calibre 8500 Co-Axial | 231.10.39.21.06.001

This Omega Seamaster Aqua Terra features a Calibre 8500 Co-Axial movement, 38.5mm case size and a 7.25 inch bracelet.

  • Water Resistance: 150m
Posted at
Jan 25, 2026, 9:46 AM
Active
[WTS] Omega Seamaster Aqua Terra Silver Dial - 2504.30 - 36mm- $2,350 Shipped ✈️

Omega Seamaster Aqua Terra Silver Dial - 2504.30 - 36mm- $2,350 Shipped ✈️

Omega - 2504.30 · $2,350
A compact Omega Seamaster Aqua Terra in a sought-after 36mm case with a beautiful sunburst silver dial.

  • Condition: Very good
  • Case diameter: 36mm
  • Movement: Omega Co-axial 2500
Posted at
Jan 24, 2026, 9:57 PM
Active