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

Reference 231.20.39.21.06.001

About this watch

The Omega Aqua Terra 231.20.39.21.06.001 is a masterclass in luxury watchmaking, seamlessly blending elegance with functionality. Its stunning round case, crafted from stainless steel and red gold, exudes sophistication while its grey dial provides exceptional readability. The proprietary hands ensure smooth movement, making it perfect for everyday wear. At the heart of this timepiece lies the Omega caliber 8500 movement, a technical marvel that showcases Omega's commitment to innovation. With a water resistance rating of 150 meters, this watch is built for adventure and can handle the elements with ease. Whether you're in a board meeting or at a beach party, this watch fits right in, making it the ultimate accessory for anyone serious about horology.
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MSRP: $8,900
Market Price: $4,621

Key Features

  • 38.50mm Stainless Steel and Red Gold Case
  • Sapphire Crystal Glass
  • 150m Water Resistance
  • Omega Caliber 8500 Movement
  • Chronometer Certification
  • Co-Axial Escapement for Reduced Friction

Specifications

Brand
Omega
Family
Aqua Terra
Model
Seamaster Aqua Terra 150M Co-Axial 38.5 Stainless Steel / Red Gold / Grey / Bracelet
Reference
231.20.39.21.06.001
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 Aqua Terra Small Seconds

Omega Aqua Terra Small Seconds

The watch is an Omega Aqua Terra with a small seconds feature.

Posted at
Jan 19, 2026, 1:37 PM
Active
[WTS] Omega Seamaster Aqua Terra 38mm Black/Steel | 220.12.38.20.01.001 | No Box or Papers | Extra Alligator Leather Strap | Good Condition | Priced to Sell

Omega Seamaster Aqua Terra 38mm Black/Steel | 220.12.38.20.01.001 | No Box or Papers | Extra Alligator Leather Strap | Good Condition | Priced to Sell

The Omega Seamaster Aqua Terra is a tribute to OMEGA’s rich maritime heritage, featuring a stainless steel case and a black dial with a horizontal ‘teak’ pattern.

  • Condition: Good condition, has a few scratches
  • Case diameter: 38mm
  • Water resistance: 150m
  • Power reserve: 55 hours
Posted at
Jan 19, 2026, 11:38 AM
Active
[WTS] Omega Speedmaster Aqua Terra 38mm Full Set

Omega Speedmaster Aqua Terra 38mm Full Set

Omega - Aqua Terra 38mm · $4,250
Beautiful Omega Aqua Terra 38mm up for sale. It has a protective film on the case and bracelet, adding scratch protection.

  • Condition: Good pre-owned condition
  • Bracelet length: 6.75in
  • Strap material: rubber
  • Box contents: Inner and Outter Box, cards, tag, OEM bracelet, another set of WatchShell film and tweezers
Posted at
Jan 19, 2026, 10:52 AM
Active
[WTS] Omega Seamaster Aqua Terra 2023 41mm Grey 220.10.41.21.06.001 Full Set - $5,495

Omega Seamaster Aqua Terra 2023 41mm Grey 220.10.41.21.06.001 Full Set - $5,495

A 2023 Omega Seamaster Aqua Terra Grey, with a 41mm case size, available in excellent condition.

  • Condition: Excellent condition with minimal signs of wear
  • Year: 2023
  • Size: 41mm diameter
  • Contents: full links, inner & outer box, card holder, international warranty card, master chronometer card, pictograms card
Posted at
Jan 19, 2026, 10:41 AM
Active
[WTS] Omega Aqua Terra 38mm // METAS Chronometer // 150m WR // Full Kit

Omega Aqua Terra 38mm // METAS Chronometer // 150m WR // Full Kit

This listing is for an Omega Aqua Terra ref. 220.10.38.20.01.001 from late 2023, featuring a stainless steel case with automatic movement.

  • Condition: Great, minor hairlines or two on the polished bezel and bracelet
  • Case diameter: 38mm
  • Lug-to-lug: 45mm
  • Lug width: 19mm
Posted at
Jan 18, 2026, 7:14 PM
Active
[WTS] Omega Seamaster Aqua Terra - Black Wave - Red Gold Accents - 2025

Omega Seamaster Aqua Terra - Black Wave - Red Gold Accents - 2025

The Omega Seamaster Aqua Terra features a striking black wave dial with red gold accents, powered by the Master Co-Axial Calibre 8500.

  • Case size: 41.5mm
  • Water resistance depth rating: 150m / 15 bar
Posted at
Jan 18, 2026, 3:08 PM
Active
[WTS] Omega Seamaster Aqua Terra Worldtimer “Summer Blue”

Omega Seamaster Aqua Terra Worldtimer “Summer Blue”

The Omega Aqua Terra Worldtimer 'Summer Blue' features a light blue dial and is one of the world's premier timepieces for travelers, offering a unique combination of style and functionality.

  • Condition: Excellent condition
  • Dial color: light blue
  • Water resistance: unknown
  • Movement: Worldtimer
Posted at
Jan 18, 2026, 10:45 AM
Active
[WTS] Omega Aqua Terra 2504.50 // 36mm // 150m WR // 2025 Full Service

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

Omega - 2504.50 · $2,725
The Omega Aqua Terra is a modern classic with a black dial and co-axial movement, suitable for various activities.

  • Condition: Great, light hairlines throughout but no major blemishes to note
  • Case material: stainless steel
  • Case diameter: 36.2mm
  • Lug-to-lug: 44mm
Posted at
Jan 17, 2026, 8:12 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 listing is for an Omega Seamaster Aqua Terra 150m with Calibre 8500 Co-Axial movement, featuring a 38.5mm case size and a 7.25-inch long bracelet.

  • Depth rating: 150m
  • Bracelet length: 7.25 inches
Posted at
Jan 17, 2026, 5:59 PM
Active