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

Reference 231.20.34.20.55.001

About this watch

The Omega Seamaster Aqua Terra 150M Master Co-Axial is a masterpiece of luxury watchmaking, boasting an elegant design, impressive functionality, and precision. The stunning Mother of Pearl dial shimmers beautifully, reflecting light with a subtle allure. Crafted from a combination of Sedna Gold and stainless steel, the 34mm round case exudes a luxurious feel that's both robust and refined. Notable features include gem-set indexes adding a touch of glamour, arrow-shaped hands ensuring effortless time-telling, and an automatic Omega caliber 8520 movement with Co-Axial escapement reducing friction for long-term accuracy. With a water resistance of 150 meters, this watch can handle the demands of water sports or everyday wear. The sapphire glass provides an extra layer of protection, while the open case back showcases the intricate workings of the movement. Wearing the Aqua Terra is a joy, with its comfortable stainless steel bracelet and secure clasp. This versatile timepiece effortlessly transitions from formal to casual settings, making it the perfect accessory for any occasion.
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Key Features

  • Omega caliber 8520 automatic movement
  • Co-Axial escapement for reduced friction
  • Mother of Pearl (MOP) dial with gem-set indexes

Specifications

Brand
Omega
Family
Aqua Terra
Model
Seamaster Aqua Terra 150M Master Co-Axial Stainless Steel / Red Gold / MOP / Bracelet
Reference
231.20.34.20.55.001
Movement
8520
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
34mm
Dial Color
White
Crystal
Sapphire
Water Resistance
150

Current Listings

[WTS] Omega Seamaster Aqua Terra 150M – Skyfall Grey Teak Dial |Ref. 231.10.42.21.06.001 | 41.5 mm | Full Set | 2020 | Excellent Condition

Omega Seamaster Aqua Terra 150M – Skyfall Grey Teak Dial |Ref. 231.10.42.21.06.001 | 41.5 mm | Full Set | 2020 | Excellent Condition

A timeless and highly versatile Seamaster Aqua Terra featuring the sought-after Skyfall grey teak-pattern dial, inspired by the wooden decks of luxury sailboats.

  • Condition: Excellent
  • Case size: 41.5mm
  • Material: stainless steel
  • Water resistance: 150m depth rating
Posted at
Feb 1, 2026, 10:51 PM
Active
[WTS] Omega Seamaster Aqua Terra Silver Dial - 2504.30 - 36mm- $2,350 Shipped ✈️

Omega Seamaster Aqua Terra Silver Dial - 2504.30 - 36mm- $2,350 Shipped ✈️

Omega - 2504.30 · $2,350
This Omega Seamaster Aqua Terra features a beautiful sunburst silver dial and is available in a compact 36mm case diameter.

  • Condition: very good condition
  • Case diameter: 36mm
  • Movement: Omega Co-axial 2500
  • Wrist size fit: 6.75 - 7inch
Posted at
Feb 1, 2026, 5:00 PM
Active
[WTS] Omega Aqua Terra “ SkyFall ” Blue Teak Dial - 231.10.42.21.03.003 - Box and Papers

Omega Aqua Terra “ SkyFall ” Blue Teak Dial - 231.10.42.21.03.003 - Box and Papers

This Omega Seamaster Aqua Terra is a Blue Teak Dial watch with a size of 41.5mm, featuring a great pre-owned condition.

  • Condition: pre-owned with minor wear
  • Size: 41.5mm diameter
  • Box And Papers: yes
  • Warranty: no
Posted at
Feb 1, 2026, 4:48 PM
Active
[WTS] OMEGA Seamaster Aqua Terra Worldtimer "Summer Blue" Ref. 220.10.43.22.03.002 - ULTIMATE SET! 🔥$10,100🔥

OMEGA Seamaster Aqua Terra Worldtimer "Summer Blue" Ref. 220.10.43.22.03.002 - ULTIMATE SET! 🔥$10,100🔥

OMEGA - 220.10.43.22.03.002 · $10,100
The OMEGA Seamaster Aqua Terra Worldtimer features a 43mm stainless steel case with a 'Summer Blue' dial showcasing the Earth laser-ablated on a grade 5 titanium plate.

  • Condition: VERY GOOD, some light scratches on case and bracelet.
  • Case size: 43mm
  • Bracelet length: ~7"
  • Contents: ultimate set includes box, papers, serial hang tag, spare links (for fully-linked bracelet), shipping coffin, and digital copy of original purchase receipt
Posted at
Feb 1, 2026, 1:50 PM
Active
[WTS] OMEGA Seamaster Aqua Terra 150M Terracotta Ref. 220.10.38.20.13.003 - ULTIMATE SET! 🔥$6,300🔥

OMEGA Seamaster Aqua Terra 150M Terracotta Ref. 220.10.38.20.13.003 - ULTIMATE SET! 🔥$6,300🔥

The OMEGA Seamaster Aqua Terra Ref. 220.10.38.20.13.003 features a stunning Terracotta dial, symmetrical case design, and rhodium-plated hands with white Super-LumiNova for readability.

  • Condition: UNWORN
  • Case size: 38mm
  • Bracelet size: ~7"
  • Contents: box, papers, serial hang tag, spare links, shipping coffin, digital copy of original purchase receipt
Posted at
Feb 1, 2026, 1:47 PM
Active
[WTS] Omega Seamaster Aqua Terra 2023 41mm Grey 220.10.41.21.06.001 Full Set - $5,495

Omega Seamaster Aqua Terra 2023 41mm Grey 220.10.41.21.06.001 Full Set - $5,495

A 2023 Omega Seamaster Aqua Terra Grey, featuring a 41mm case size and available for sale in excellent condition.

  • Condition: Excellent condition with minimal signs of wear
  • Year: 2023
  • Size: 41mm
  • Water Resistance: 30m water resistance
Posted at
Feb 1, 2026, 12:59 PM
Active
[WTS] Omega Seamaster Aqua Terra 150m | Calibre 8500 Co-Axial | 231.10.39.21.06.001

Omega Seamaster Aqua Terra 150m | Calibre 8500 Co-Axial | 231.10.39.21.06.001

This Omega Seamaster Aqua Terra features a Calibre 8500 Co-Axial movement and comes with a 38.5mm case.

  • Movement: Calibre 8500 Co-Axial
  • Bracelet length: 7.25 inches
Posted at
Feb 1, 2026, 12:17 PM
Active
[WTS] Omega Seamaster Aqua Terra 150m | Master Co-Axial | 41.5mm | 231.10.42.21.03.003 Blue

Omega Seamaster Aqua Terra 150m | Master Co-Axial | 41.5mm | 231.10.42.21.03.003 Blue

This listing is for an Omega Seamaster Aqua Terra Master Co-Axial in blue, featuring a 41.5mm case size and 7.25" bracelet.

  • Size: 41.5mm case
  • Bracelet length: 7.25 inches
Posted at
Jan 30, 2026, 9:29 PM
Active
[WTS] Omega Seamaster Aqua Terra Annual Calendar - Blue - 38.5mm

Omega Seamaster Aqua Terra Annual Calendar - Blue - 38.5mm

Omega - 23110392203001 · $4,400
The Omega Seamaster Aqua Terra Annual Calendar features a 38.5mm stainless steel case with an annual calendar complication, automatically accounting for months with 30 or 31 days.

  • Condition: Excellent
  • Case size: 38.5mm diameter
  • Water resistance: 150m depth rating
  • Movement: Omega Co-Axial calibre 8601
Posted at
Jan 30, 2026, 6:14 PM
Active