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

[WTT], [WTS] Omega Aqua Terra 41mm Blue Teakwood Dial for SMP300 White Dial or $5,400

[WTT], Omega Aqua Terra 41mm Blue Teakwood Dial for SMP300 White Dial or $5,400

A 41mm Omega Aqua Terra with blue teakwood dial, received as an inheritance and now being traded for a Seamaster Professional 300 or sold outright.

  • Condition: Excellent condition, minimal wear
  • Movement: Calibre 8900
  • Water Resistance: 150m depth rating
Posted at
Dec 22, 2025, 7:28 PM
Active
[WTS] Omega Seamaster Aqua Terra Co-Axial 39mm Ref# 2503.50 $2,299.00

Omega Seamaster Aqua Terra Co-Axial 39mm Ref# 2503.50 $2,299.00

Omega - 2503.50 · $2,299
A beautiful black dial Omega Seamaster Aqua Terra Co-Axial with automatic self-winding movement and 150M water resistance.

  • Condition: Great pre-owned, with a few hairlines and minor scratches.
  • Diameter: 39mm
  • Bracelet material: stainless steel
  • Water resistance depth: 150m
Posted at
Dec 22, 2025, 6:17 PM
Active
[WTS] 2023 Omega Aqua Terra Shades Saffron 220.10.38.20.12.001, Complete Set $4750 + Label

2023 Omega Aqua Terra Shades Saffron 220.10.38.20.12.001, Complete Set $4750 + Label

A 2023 Omega Seamaster Aqua Terra Shades Collection in Saffron color, featuring a symmetrical case and crown in polished stainless steel, with a lacquered and sun-brushed saffron dial. Powered by OMEGA's Co-Axial Master Chronometer calibre 8800.

  • Condition: Lightly worn, minor scuffs on clasp
  • Case size: 38mm
  • Movement: Co-Axial Master Chronometer calibre 8800
Posted at
Dec 22, 2025, 3:51 PM
Active
[WTS] OMEGA Seamaster Aqua Terra 150M Terracotta Ref. 220.10.38.20.13.003 - ULTIMATE SET!

OMEGA Seamaster Aqua Terra 150M Terracotta Ref. 220.10.38.20.13.003 - ULTIMATE SET!

The OMEGA Seamaster Aqua Terra introduces a vibrant splash of color to the collection with its stunning Terracotta dial, featuring a symmetrical case design that is both elegant and comfortable on the wrist.

  • Condition: [UNWORN]
  • Case diameter: 38mm
  • Bracelet size: ~7"
  • Water resistance: 150m
Posted at
Dec 22, 2025, 9:12 AM
Active
[WTS] OMEGA Seamaster Aqua Terra Worldtimer "Summer Blue" Ref. 220.10.43.22.03.002 - ULTIMATE SET!

OMEGA Seamaster Aqua Terra Worldtimer "Summer Blue" Ref. 220.10.43.22.03.002 - ULTIMATE SET!

OMEGA - 220.10.43.22.03.002 · $10,250
The OMEGA Seamaster Aqua Terra Worldtimer 'Summer Blue' Ref. 220.10.43.22.03.002 is a sophisticated travel companion that puts the world on your wrist.

  • Condition: VERY GOOD - some light scratches on case and bracelet
  • Case size: 43mm
  • Bracelet length: ~7"
  • Contents: ULTIMATE SET - box, papers, serial hang tag, spare links, shipping coffin, digital copy of original purchase receipt
Posted at
Dec 22, 2025, 9:09 AM
Active
[WTS] Omega Seamaster Aqua Terra 150M - Green Dial - 2024 Full Set - Excellent Condition

Omega Seamaster Aqua Terra 150M - Green Dial - 2024 Full Set - Excellent Condition

The Omega Seamaster Aqua Terra 150M features a stunning green dial with a sporty and elegant design, perfect for both weekend and office wear.

  • Condition: Mint / 9.5 out of 10
  • Purchase Year: 2024
  • Included Items: Complete Omega Inner & Outer Box,Wooden Presentation Box,Warranty Card (Dated 2024),Master Chronometer Card & Pictogram Card,Operating Instructions,All Original Links
  • Handling Marks: minor hairline marks on the polished center links
Posted at
Dec 21, 2025, 5:50 PM
Active
[WTS] Omega Seamaster Aqua Terra - ‘Blue Wave’ with Gold Accents

Omega Seamaster Aqua Terra - ‘Blue Wave’ with Gold Accents

Omega - 23110422103006 · $4,750
The Omega Seamaster Aqua Terra 'Blue Wave' features a striking blue wave pattern on its dial, paired with 18K yellow gold hands and indexes. The watch has a 41.5mm stainless steel case and a stainless steel bracelet.

  • Condition: Excellent all-around condition
  • Case material: stainless steel
  • Bracelet material: stainless steel
  • Diameter: 41.5mm
Posted at
Dec 21, 2025, 1:34 PM
Active
[WTS] Omega aqua terra worldtimer green(2022) 18K hands- Recent omega service 2025 6250euro

Omega aqua terra worldtimer green(2022) 18K hands- Recent omega service 2025 6250euro

This Omega Worldtimer in green was recently serviced by Omega and comes with a new warranty card for two more years. The watch has some minor scratches on the bracelet, as seen in the pictures.

  • Condition: great condition, with scratches on the bracelet
  • Bracelet condition: scratches
  • Warranty status: 2 years remaining
  • Box type: Omega box (not original)
Posted at
Dec 21, 2025, 9:27 AM
Active
[WTS] Omega Seamaster Aqua Terra 150m Blue 220.10.41.21.03.002

Omega Seamaster Aqua Terra 150m Blue 220.10.41.21.03.002

This listing is for an Omega Seamaster Aqua Terra 150m Blue watch, which includes the watch and its papers. The watch features a 7.25" bracelet.

  • Bracelet length: 7.25 inches
Posted at
Dec 20, 2025, 6:53 PM
Active