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

Reference 231.20.39.21.55.001

About this watch

The Omega Seamaster Aqua Terra 231.20.39.21.55.001 is a masterpiece of luxury watchmaking that combines elegance and robust functionality. Its Mother of Pearl dial changes hues with different lighting, adding an element of depth and intrigue. The combination of red gold and stainless steel gives it a luxurious feel, making it a statement piece for any outfit. At the heart of this magnificent watch lies the Omega caliber 8500, introduced in 2007, which has earned accolades for its reliability and precision. With a frequency of 25,200 vibrations per hour and a power reserve of up to 60 hours, it ensures your timepiece keeps ticking even after a weekend away from your wrist. The watch features a sapphire crystal resistant to scratches and impacts, ensuring that your watch remains pristine even after years of wear. Measuring 38.50 mm in diameter, this Omega watch fits comfortably on the wrist, striking a balance between being bold and understated.
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MSRP: $10,000
Market Price: $4,571

Key Features

  • Omega caliber 8500 movement
  • Mother of Pearl dial with changing hues
  • Sapphire crystal for scratch resistance
  • Water resistance of 150 meters
  • Red gold and stainless steel combination
  • Chronometer certified
  • Power reserve of up to 60 hours

Specifications

Brand
Omega
Family
Aqua Terra
Model
Seamaster Aqua Terra 150M Co-Axial 38.5 Stainless Steel / Red Gold / MOP / Bracelet
Reference
231.20.39.21.55.001
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 Seamaster Aqua Terra Blue Dial - 36mm - 2504.80 - Clean!

Omega Seamaster Aqua Terra Blue Dial - 36mm - 2504.80 - Clean!

Omega - 2504.80 · $2,650
The Omega Seamaster Aqua Terra features a 36.2mm case, navy blue sunburst dial, and Co-Axial automatic movement. It includes a domed sapphire crystal with anti-reflective coating and an elegant stainless steel bracelet.

  • Condition: Excellent overall condition with minimal wear
  • Case size: 36.2mm diameter
  • Crystal type: domed sapphire crystal with anti-reflective coating
Posted at
Feb 3, 2026, 1:39 PM
Active
[WTS] Omega Seamaster Aqua Terra Quartz - 38.5mm - 231.10.39.60.02.001 - Clean!

Omega Seamaster Aqua Terra Quartz - 38.5mm - 231.10.39.60.02.001 - Clean!

A simple yet elegant OMEGA Seamaster Aqua Terra 150M with a Caliber 4564 quartz movement housed in a 38.5mm case, available at a great price point.

  • Case size: 38.5mm
  • Depth rating: 150m
  • Movement type: quartz
Posted at
Feb 3, 2026, 1:28 PM
Active
[WTS] Oman Khanjar Stamped Omega Aqua Terra ($9,250)

Oman Khanjar Stamped Omega Aqua Terra ($9,250)

Omega - 2201341211001 · $9,250
This Omega Aqua Terra features a green dial and is stamped with the Oman Khanjar emblem on the caseback.

  • Condition: pristine
  • Case size: 41mm diameter
  • Dial color: green
Posted at
Feb 2, 2026, 3:35 PM
Active
[WTS] Omega Seamaster Aqua Terra Quartz - White Dial - 231.10.39.61.02.001

Omega Seamaster Aqua Terra Quartz - White Dial - 231.10.39.61.02.001

This Omega Seamaster Aqua Terra Quartz features a white dial, quartz movement, and comes on its original stainless steel bracelet.

  • Condition: Pre-owned, minor wear throughout
  • Size: 38.5mm diameter
  • Movement: Quartz
Posted at
Feb 2, 2026, 1:23 PM
Active
[WTS] Omega Seamaster Aqua Terra 150m, 38.5mm White/Silver Dial on Bracelet

Omega Seamaster Aqua Terra 150m, 38.5mm White/Silver Dial on Bracelet

For sale is a Omega Seamaster Aqua Terra 150M with a 38.5mm steel case, white/silver dial and bracelet. It's in very good condition, keeping consistent time within spec.

  • Condition: Very good condition
  • Depth rating: 150m
Posted at
Feb 2, 2026, 11:11 AM
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
Omega Seamaster Aqua Terra Co-Axial White Blue Stainless Steel MINT 2503.33.00

Omega Seamaster Aqua Terra Co-Axial White Blue Stainless Steel MINT 2503.33.00

The Omega Seamaster Aqua Terra Co-Axial is a sport-ready watch with dress-worthy charm, featuring a white dial with blue accents and a stainless steel case with brushed and polished finishes.

  • Condition: Mint
  • Movement: Co-Axial
  • Case size: Not specified
  • Water resistance: Not specified
Posted at
Mar 25, 2025, 5:11 PM
Active
Omega Aqua Terra - Small Seconds - Slate - 220.12.41.21.03.005 ( excellent )

Omega Aqua Terra - Small Seconds - Slate - 220.12.41.21.03.005 ( excellent )

This Omega Aqua Terra 150M Small Seconds features a Slate Blue dial and is housed in a 41mm stainless steel case.

  • Condition: Excellent
  • Case material: Stainless Steel
  • Water resistance: 150m
Posted at
Mar 25, 2025, 3:13 PM
Active