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 Aqua Terra blue rubber strap with deployant and end links

Omega Aqua Terra blue rubber strap with deployant and end links

This listing is for an OEM Omega Aqua Terra blue rubber strap with deployant and end links, made for the 41mm teak dial version of the watch.

  • Condition: near mint
  • Strap width: 20mm
Posted at
Mar 22, 2026, 12:17 PM
Active
[WTS] Omega Seamaster Aqua Terra “London 2012” Olympic Collection – Ref. 522.23.34.20.03.001 – Full Set 2015 – Excellent Condition

Omega Seamaster Aqua Terra “London 2012” Olympic Collection – Ref. 522.23.34.20.03.001 – Full Set 2015 – Excellent Condition

This Omega Seamaster Aqua Terra is a special edition released to commemorate the London 2012 Olympic Games, featuring a stainless steel case with an 18k yellow gold bezel and blue teak-pattern dial. It comes as a full set with inner/outer box, warranty card, and accessories, powered by the Omega Co-Axial Caliber 8520 automatic movement.

  • Condition: Excellent pre-owned condition
  • Case size: 34mm
  • Movement: Omega Caliber 8520 (automatic)
  • Power reserve: ~50 hours
Posted at
Mar 22, 2026, 12:10 PM
Active
[WTS] Omega Seamaster Aqua Terra 150m 38mm. Ref 220.12.38.20.02.001

Omega Seamaster Aqua Terra 150m 38mm. Ref 220.12.38.20.02.001

A 38mm Omega Seamaster Aqua Terra with a depth rating of 150m is being sold.

  • Condition: minor wear on the sides
  • Warranty: until July 2028
  • Shipping: free shipping in US to a FedEx store near buyer's address
Posted at
Mar 22, 2026, 11:21 AM
Active
[WTS] 2023 Omega Seamaster Aqua Terra 41.5mm 150M Black 231.10.42.21.01.003 Full Set - $4,495

2023 Omega Seamaster Aqua Terra 41.5mm 150M Black 231.10.42.21.01.003 Full Set - $4,495

Up for sale is a **Omega Seamaster Aqua Terra Black**. This watch features a 41.5mm case and 150m water resistance.

  • Condition: Excellent condition with minimal signs of wear
  • Year: 2023
  • Water Resistance: 150m
Posted at
Mar 22, 2026, 10:37 AM
Active
[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
This Omega Seamaster Aqua Terra features a navy blue sunburst dial, Co-Axial automatic movement and a stainless steel bracelet with a hidden clasp design.

  • Condition: Excellent overall condition with minimal wear
  • Case size: 36.2mm
  • Movement: Omega's Co-Axial automatic movement
Posted at
Mar 21, 2026, 8:21 PM
Active
[WTS] OMEGA Seamaster Aqua Terra Worldtimer "Summer Blue" Ref. 220.10.43.22.03.002 - ULTIMATE SET! 🔥$9,600🔥

OMEGA Seamaster Aqua Terra Worldtimer "Summer Blue" Ref. 220.10.43.22.03.002 - ULTIMATE SET! 🔥$9,600🔥

The OMEGA Seamaster Aqua Terra Worldtimer Ref. 220.10.43.22.03.002 is a sophisticated travel companion that puts the world on your wrist, featuring a 43mm stainless steel case and a dial showcasing a vision of Earth surrounded by a 24-hour glass ring.

  • Condition: VERY GOOD, with some light scratches on case and bracelet
  • Case size: 43mm
  • Bracelet length: ~7 inches
  • Contents: ULTIMATE SET, including box, papers, serial hang tag, spare links, shipping coffin, and digital copy of original purchase receipt
Posted at
Mar 21, 2026, 7:04 PM
Active
[WTS] OMEGA Seamaster Aqua Terra 150M Terracotta Ref. 220.10.38.20.13.003 - ULTIMATE SET! 🔥$6,100🔥

OMEGA Seamaster Aqua Terra 150M Terracotta Ref. 220.10.38.20.13.003 - ULTIMATE SET! 🔥$6,100🔥

The OMEGA Seamaster Aqua Terra Ref. 220.10.38.20.13.003 features a 38mm stainless steel case with a symmetrical design, a Terracotta dial made from brass, and a polished and brushed bracelet.

  • Condition: UNWORN
  • Case size: 38mm
  • Water resistance: 150M
  • Movement: Co-Axial Master Chronometer Calibre 8800
Posted at
Mar 21, 2026, 7:01 PM
Active
[WTS] Omega Seamaster Aqua Terra 150M "SPECTRE" James Bond Limited Edition - 231.10.42.21.03.004

Omega Seamaster Aqua Terra 150M "SPECTRE" James Bond Limited Edition - 231.10.42.21.03.004

This Omega Seamaster Aqua Terra 150M 'SPECTRE' James Bond Limited Edition features a blue PVD dial, Master Co-Axial Caliber 8507 movement, and a stainless steel bracelet. The watch is part of a limited run of 15,007 pieces.

  • Condition: great condition with only minor signs of wear
  • Case diameter: 41.5mm
  • Movement: Omega Caliber 8507 (Anti-magnetic to >15,007 Gauss)
  • Power reserve: 60 Hours
Posted at
Mar 21, 2026, 6:24 PM
Active
[WTS] Omega SeaMaster Aqua Terra 38mm Green Dial 220.10.38.20.10.002 F/Set 2023

Omega SeaMaster Aqua Terra 38mm Green Dial 220.10.38.20.10.002 F/Set 2023

The Omega Seamaster Aqua Terra is a beautiful watch in the perfect size, with a 38mm diameter.

  • Diameter: 38mm
  • Size: perfect
  • Boxes: outer and inner
Posted at
Mar 21, 2026, 1:03 AM
Active