Omega Aqua Terra Seamaster Aqua Terra 150M Co-Axial 38.5 Stainless Steel / Yellow Gold / Grey / Bracelet

Reference 231.20.39.21.06.004

About this watch

The Omega Seamaster Aqua Terra 231.20.39.21.06.004 is a masterclass in luxury watchmaking, blending classic elegance with modern functionality. This stunning timepiece boasts impressive technical specifications, including the Omega caliber 8500 automatic movement, Co-Axial escapement, and a power reserve of 60 hours. The combination of stainless steel and yellow gold gives it a luxurious yet robust feel, while the grey dial features stick and dot indexes for a clean and modern look. With its water resistance of up to 150 meters, this watch is perfect for those who enjoy aquatic adventures or daily wear. Whether you're at a business meeting or a beach party, the Omega Seamaster Aqua Terra elevates your outfit with its exceptional build quality and stylish design. As a chronometer, it has passed rigorous testing to ensure accuracy and reliability.
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MSRP: $7,700
Market Price: $3,492

Key Features

  • Omega caliber 8500 automatic movement
  • Co-Axial escapement for reduced friction and enhanced longevity
  • 60-hour power reserve for reliable timekeeping
  • Water resistance of up to 150 meters for aquatic adventures or daily wear
  • Stainless steel and yellow gold construction for luxurious yet robust feel
  • Grey dial with stick and dot indexes for clean modern look
  • Sapphire glass for added durability and scratch resistance

Specifications

Brand
Omega
Family
Aqua Terra
Model
Seamaster Aqua Terra 150M Co-Axial 38.5 Stainless Steel / Yellow Gold / Grey / Bracelet
Reference
231.20.39.21.06.004
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 Black Teak (full set)

Omega Seamaster Aqua Terra Black Teak (full set)

Omega - Aqua Terra · $3,800
This Omega Seamaster Aqua Terra is a black Teak variant that comes with a full set of accessories. It features an alligator leather deployant strap and has been worn daily since purchase.

  • Condition: Minor wear
  • Strap: black Northstar sailcloth with grey stitching, alligator leather deployant strap
Posted at
Apr 22, 2026, 9:26 AM
Active
[WTS] Omega Seamaster Aqua Terra Railmaster 2504.52 — $6800— Catch & Release, Serviced by Omega, Full Set

Omega Seamaster Aqua Terra Railmaster 2504.52 — $6800— Catch & Release, Serviced by Omega, Full Set

Omega - 2504.52 · $6,800
This Omega Seamaster Aqua Terra Railmaster is a 36mm stainless steel watch featuring a black dial, automatic movement, and an Omega 1575 stainless steel bracelet.

  • Condition: Excellent, minimal wear
  • Case material: Stainless steel
  • Diameter: 36mm
  • Lug width: 19mm
Posted at
Apr 22, 2026, 12:40 AM
Active
[WTS] 2019 Omega Seamaster Aqua Terra 150M 38.5mm Black dial Steel bracelet

2019 Omega Seamaster Aqua Terra 150M 38.5mm Black dial Steel bracelet

The Omega Seamaster Aqua Terra 150M Annual Calendar is a stainless steel watch with a black dial and Co-Axial escapement. It features an annual calendar complication, automatic date correction for March, and is COSC chronometer certified.

  • Condition: Great condition, minor flaws not visible to the eye
  • Case size: 38.5mm
  • Dial color: black
  • Water resistance: 150M
Posted at
Apr 21, 2026, 10:55 PM
Active
[WTS] Omega Aqua Terra 2503.80 Cal 2500 39mm Blue Dial  - $2,490

Omega Aqua Terra 2503.80 Cal 2500 39mm Blue Dial - $2,490

Omega - 2503.80 · $2,490
Up for sale is my Omega Aqua Terra 2503.80 in great condition with a Calibre OMEGA 2500 Automatic movement and measuring at 39 mm.

  • Condition: great condition, minimal marks on case and bracelet
  • Case size: 39mm diameter
  • Bracelet type: original Omega steel bracelet
  • Movement type: Calibre OMEGA 2500 Automatic
Posted at
Apr 21, 2026, 9:04 PM
Active
[WTS] Omega Aqua Terra White Co-Axial  231.10.39  38.5 mm - $2,650

Omega Aqua Terra White Co-Axial 231.10.39 38.5 mm - $2,650

The Omega Seamaster Aqua Terra White Co-Axial is a 38.5mm watch with an automatic Calibre OMEGA 8500 movement.

  • Condition: Great condition, minimal marks/hairlines on the case and sapphire crystal smudging/scratches on the AR coating
  • Case size: 38.5 mm
  • Movement: Calibre OMEGA 8500 automatic movement
  • Water resistance: 150m
Posted at
Apr 21, 2026, 9:01 PM
Active
[WTS] Omega Seamaster Aqua Terra Skyfall 231.10.39 38.5mm - $3,450

Omega Seamaster Aqua Terra Skyfall 231.10.39 38.5mm - $3,450

The Omega Seamaster Aqua Terra 'Skyfall' features a Calibre OMEGA 8500 automatic movement in a 39mm steel case with original AT bracelet and presentation box. It has a sapphire crystal and datewheel, with all functions working well.

  • Condition: great condition
  • Case size: 39mm
  • Movement type: automatic
  • Water resistance: 150m
Posted at
Apr 21, 2026, 8:56 PM
Active
[WTS] Omega Seamaster Aqua Terra 231.10.39 38.5mm Quartz Grey Teak - $1,950

Omega Seamaster Aqua Terra 231.10.39 38.5mm Quartz Grey Teak - $1,950

Omega - 231.10.39 · $1,950
This Omega Seamaster Aqua Terra is a quartz watch with a 38.5mm steel case and original AT bracelet. It features a one-liner dial and printed indices, as well as sapphire crystal protection.

  • Condition: Great condition
  • Case material: Steel
  • Bracelet type: Original steel Omega steel bracelet
  • Crystal type: Sapphire crystal
Posted at
Apr 21, 2026, 8:50 PM
Active
[WTS] Omega Seamaster Aqua Terra 2517.50 39mm $1700 Shipped

Omega Seamaster Aqua Terra 2517.50 39mm $1700 Shipped

Omega - 2517.50 · $1,700
The Omega Seamaster Aqua Terra is a great everyday option with a classic black dial look, offering quartz accuracy and maintenance.

  • Condition: Used with honest wear and light scratching throughout consistent with use
  • Movement: quartz
  • Bracelet size fits wrist: 7.25in
Posted at
Apr 21, 2026, 6:47 PM
Active
[WTS] Omega Seamaster Aqua Terra 231.10.39.21.01.001 Black Teak 38.5mm  - $2,990

Omega Seamaster Aqua Terra 231.10.39.21.01.001 Black Teak 38.5mm - $2,990

Up for sale is my great condition Omega Seamaster Aqua Terra 231.10.39.21.01.001 with an automatic Omega Calibre 8500 movement.

  • Condition: Very good condition for its age
  • Size: 38.5mm diameter
  • Movement: Omega Calibre 8500
  • Case Material: steel
Posted at
Apr 21, 2026, 4:56 AM
Active