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

Reference 231.20.39.21.51.003

About this watch

The Omega Aqua Terra 231.20.39.21.51.003 is a masterpiece of engineering and design, combining elegance with functionality. Crafted from a harmonious blend of stainless steel and red gold, this watch exudes luxury and durability. The black dial, complemented by gem-set indexes, adds a touch of sophistication that's hard to ignore. The round case, with a diameter of 38.5mm, strikes an ideal balance between boldness and wearability. At the core lies the Omega caliber 8500 movement, renowned for its precision and reliability, featuring 39 jewels and a frequency of 25,200 vibrations per hour. This automatic movement boasts an impressive 60-hour power reserve, ensuring it keeps perfect time even when taken off for days. With a water resistance of up to 150 meters, this watch is suitable for swimming and snorkeling. As a 'Master Co-Axial Chronometer', it has passed stringent tests ensuring its accuracy. The date function included ensures you always know what day it is, while the comfortable fit makes it perfect for all-day wear. Whether in formal or casual settings, the Aqua Terra's design speaks volumes and adapts to any outfit.
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MSRP: $9,550
Market Price: $3,884

Key Features

  • Omega caliber 8500 movement
  • 60-hour power reserve
  • 150m water resistance
  • Date function
  • Master Co-Axial Chronometer certification
  • Stainless steel and red gold construction
  • Black dial with gem-set indexes

Specifications

Brand
Omega
Family
Aqua Terra
Model
Seamaster Aqua Terra 150M Co-Axial 38.5 Stainless Steel / Red Gold / Black / Bracelet
Reference
231.20.39.21.51.003
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] Omega Seamaster Aqua Terra Day Date, Blue dial.

Omega Seamaster Aqua Terra Day Date, Blue dial.

This Omega Seamaster Aqua Terra Day Date features a blue dial and is one of the seller's daily wear pieces. It comes with original box, strap, and clasp.

  • Condition: pre-owned with minor wear (micro hairline)
  • Original Box: true
  • Strap Condition: original
  • Case Size: 40mm diameter
Posted at
Feb 5, 2026, 8:21 PM
Active
[WTS] Omega Aqua Terra 2503.80 - 39mm - Blue Automatic

Omega Aqua Terra 2503.80 - 39mm - Blue Automatic

Omega - 2503.80 · $2,650
This is the automatic version with the blue dial in the classic 39mm case—an excellent everyday wear piece, functioning as it should.

  • Condition: Pre-owned, minor wear throughout
  • Size: 39mm diameter
  • Water Depth Rating: not specified
Posted at
Feb 5, 2026, 1:04 PM
Active
[WTS] WTS- Omega Aqua terra Omega Seamaster Aqua Terra Shades 38mm
Ref - 220.10.38.20.10.002 Box and Papers £4195

WTS- Omega Aqua terra Omega Seamaster Aqua Terra Shades 38mm Ref - 220.10.38.20.10.002 Box and Papers £4195

This Omega Seamaster Aqua Terra Shades is a 38mm watch available for sale.

  • Length: 38mm diameter
  • Width: not specified
Posted at
Feb 5, 2026, 7:08 AM
Active
[WTS] Omega Aqua Terra Oman Khanjar Stamped ($8,950)

Omega Aqua Terra Oman Khanjar Stamped ($8,950)

Omega - 2201341211001 · $8,950
This Omega Aqua Terra features a 41mm case and comes with all three cards dated 2022, including the green dial. It's stamped with the Oman Khanjar emblem on the caseback.

  • Condition: pristine
  • Size: 41mm diameter
  • Case back stamp: Oman Khanjar emblem
  • Dial color: green
Posted at
Feb 4, 2026, 10:35 PM
Active
[WTS] Omega Aqua Terra 36mm - Blue Dial - Quartz - 2518.80 - Price Reduced!

Omega Aqua Terra 36mm - Blue Dial - Quartz - 2518.80 - Price Reduced!

Omega - 2518.80 · $1,695
This Omega Seamaster Aqua Terra Blue is a stunning piece with great case and bracelet shape. The watch comes as-is, with some very light marks on the crystal not visible during normal wear.

  • Condition: Good overall condition, minimal wear
  • Size: 36mm diameter
  • Water Resistance: Unknown
Posted at
Feb 4, 2026, 9:07 PM
Active
[WTS] Omega Aqua Terra Sandstone 220.10.38 38mm Cheapest - $3,650

Omega Aqua Terra Sandstone 220.10.38 38mm Cheapest - $3,650

Omega - 220.10.38 · $3,650
Up for sale is my Omega Seamaster Aqua Terra ref. 220.10.38 with a Calibre OMEGA 8800 movement. This watch measures at 38mm.

  • Condition: great condition, minor marks on case and crystal
  • Case size: 38mm diameter
  • Bracelet size: fits up to 7 inch wrists
  • Movement: Calibre OMEGA 8800
Posted at
Feb 4, 2026, 8:34 PM
Active
[WTS] ⚫️ Omega Aqua Terra Black Lacquer Dial 38mm ⚫️

⚫️ Omega Aqua Terra Black Lacquer Dial 38mm ⚫️

The Omega Aqua Terra is a perfectly balanced 38mm watch with 150m water resistance, powered by the METAS-certified Master Co-Axial Calibre 8800.

  • Condition: Excellent
  • Size: 38mm diameter
  • Water resistance: 150m
Posted at
Feb 4, 2026, 7:07 PM
Active
[WTS] 💎 2006 Omega Seamaster Aqua Terra 36mm 2518.50

💎 2006 Omega Seamaster Aqua Terra 36mm 2518.50

The Omega Seamaster Aqua Terra 36mm is a perfect GADA watch with light surface scratches and small dings, but in amazing shape.

Posted at
Feb 4, 2026, 5:28 PM
Active
[WTS] Omega Aqua Terra Small Seconds *Price Drop*

Omega Aqua Terra Small Seconds *Price Drop*

This Omega Aqua Terra Small Seconds is a beautiful watch that feels great on the wrist and keeps excellent time. It comes with an Omega travel box and an extra link.

  • Condition: Excellent
  • Water Resistance: 100m depth rating
  • Strap Length: 7.75 inches ( fits 7.75 inch wrist )
Posted at
Feb 4, 2026, 12:15 PM
Active