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

Reference 231.20.39.21.55.004

About this watch

The Omega Seamaster Aqua Terra 150M Master Co-Axial is a masterpiece of luxury watchmaking, boasting an exquisite Mother of Pearl dial and a durable combination of stainless steel and yellow gold. At the heart of this timepiece lies the Omega caliber 8500 movement, certified as a Master Co-Axial Chronometer and featuring a power reserve of up to 60 hours. With its stunning design and impressive technical specifications, this watch stands out as a prime example of Omega's craftsmanship. Whether you're in a formal setting or enjoying casual outings, this watch is suitable for any occasion, thanks to its versatility and excellent water resistance of 150 meters.
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Key Features

  • Omega caliber 8500 movement
  • Master Co-Axial Chronometer certification
  • 60-hour power reserve
  • Exquisite Mother of Pearl dial
  • Durable stainless steel and yellow gold materials
  • Excellent water resistance (150 meters)
  • Versatile design suitable for any occasion

Specifications

Brand
Omega
Family
Aqua Terra
Model
Seamaster Aqua Terra 150M Master Co-Axial 38.5 Stainless Steel / Yellow Gold / MOP / Bracelet
Reference
231.20.39.21.55.004
Movement
8500
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
38.5mm
Dial Color
White
Crystal
Sapphire
Water Resistance
150

Current Listings

[WTS] Omega Aqua Terra Shades Sandstone - 38mm - 220.10.38.20.09.001

Omega Aqua Terra Shades Sandstone - 38mm - 220.10.38.20.09.001

This Omega Seamaster Aqua Terra Shades features a stunning 'Sandstone' dial and is available in 38mm size. It's a watch-only example that's been lightly used.

  • Condition: lightly pre-owned with light, normal wear throughout and small mark on crystal near 3 o'clock
  • Case Size: 38mm diameter
  • Movement Amplification: 300+ amplitude
  • Accuracy: +1 second/day
Posted at
Mar 26, 2026, 6:35 PM
Active
[WTS] 36mm Omega Seamaster Aqua Terra Quartz - Ref 2518.50 - $1900 SHIPPED

36mm Omega Seamaster Aqua Terra Quartz - Ref 2518.50 - $1900 SHIPPED

Omega - 2518.50 · $1,900
A 36mm Omega Seamaster Aqua Terra Quartz watch, powered by a Calibre OMEGA 1538 quartz movement.

  • Condition: Excellent condition
  • Case Size: 36mm diameter
  • Bracelet Length: up to 7"
  • Movement Type: quartz
Posted at
Mar 26, 2026, 3:27 PM
Active
[WTS] 2024 Omega Seamaster Aqua Terra 150M 41mm Silver Dial 220.12.41.21.02.002 Full Set Excellent

2024 Omega Seamaster Aqua Terra 150M 41mm Silver Dial 220.12.41.21.02.002 Full Set Excellent

The Omega Seamaster Aqua Terra 150M is a versatile watch that combines everyday style with refined nautical design. Its 41mm stainless steel case features a silver "teak concept" dial, inspired by wooden yacht decks.

  • Condition: Excellent
  • Diameter: 41mm
  • Depth rating: 150m
Posted at
Mar 26, 2026, 12:31 PM
Active
[WTS] Omega Seamaster Aqua Terra 2503.33  - $2,450  - Reserved Post for u/Life_Minute_Second

Omega Seamaster Aqua Terra 2503.33 - $2,450 - Reserved Post for u/Life_Minute_Second

Omega - 2503.33 · $2,450
Up for sale is my Omega Seamaster Aqua Terra 2503.33, a 39mm watch with an Omega 2500 automatic movement.

  • Condition: Very good
  • Case material: Steel
  • Bracelet material: Original Omega Steel
  • Crystal type: Sapphire
Posted at
Mar 25, 2026, 4:23 AM
Active
[WTS] Omega Aqua Terra 231.10.39 Cal 8500 39mm w/ cards- $2,850 - Reserved post for u/SamV88

Omega Aqua Terra 231.10.39 Cal 8500 39mm w/ cards- $2,850 - Reserved post for u/SamV88

The Omega Aqua Terra 231.10.39 Cal 8500 is a 39mm watch with an Calibre OMEGA 8500 movement. It has a steel case on original Omega steel bracelet.

  • Condition: Great condition, with minimal marks on the case and caseback
  • Case size: 39mm
  • Bracelet material: Steel
  • Movement: Calibre OMEGA 8500
Posted at
Mar 25, 2026, 4:05 AM
Active
[WTS] Omega Seamaster Aqua Terra 231.10.39 38.5mm Quartz Grey Teak - $1,890

Omega Seamaster Aqua Terra 231.10.39 38.5mm Quartz Grey Teak - $1,890

Omega - 231.10.39 38.5mm · $1,890
Up for sale is my Omega Seamaster Aqua Terra 231.10.39 in great condition. This watch measures at 39mm and has an Calibre OMEGA 4564 quartz movement.

  • Condition: 8.9/10, great condition
  • Case material: steel
  • Bracelet type: original steel Omega bracelet
  • Crystal type: sapphire crystal
Posted at
Mar 25, 2026, 4:02 AM
Active
[WTS] Omega Aqua Terra GMT 231.13.43.22.01.001 in like new condition

Omega Aqua Terra GMT 231.13.43.22.01.001 in like new condition

  • Condition: like new
  • Case material: stainless steel
  • Bezel material: ceramic
Posted at
Mar 24, 2026, 8:03 PM
Active
Omega Aqua Terra 8800 - 38mm - Lacquer Black - 220.10.38.20.01.004 ( new )

Omega Aqua Terra 8800 - 38mm - Lacquer Black - 220.10.38.20.01.004 ( new )

Up for sale is a brand new Omega Aqua Terra 8800 38mm with Lacquer Black Dial, reference # 220.10.38.20.01.004.

  • Condition: Brand new
  • Case size: 38mm
  • Movement type: Master Chronometer Movement
Posted at
Apr 3, 2025, 3:15 PM
Active
Omega Seamaster Aqua Terra Green 41mm

Omega Seamaster Aqua Terra Green 41mm

The Omega Seamaster Aqua Terra Green is a versatile watch suitable for daily wear, featuring a Master Chronometer certified calibre 8900 with 60 hours of power reserve and antimagnetic properties. It has an excellent bracelet and proportions.

  • Condition: Near-mint, 94-95%
  • Case size: 41mm x 47.9mm lug to lug
  • Thickness: 13.2mm
  • Power reserve: 60 hours
Posted at
Mar 31, 2025, 10:30 AM
Active