Omega Aqua Terra Seamaster Aqua Terra 150M Co-Axial 34 Stainless Steel / Diamond / MOP

Reference 231.18.34.20.55.001

Omega Seamaster Aqua Terra 150M Co-Axial 34 Stainless Steel / Diamond / MOP

About this watch

The Omega Seamaster Aqua Terra 231.18.34.20.55.001 is a masterpiece of luxury watchmaking, blending elegance with precision in a stunning package. Crafted from stainless steel and adorned with diamond accents, this 34mm timepiece exudes sophistication and refinement. The Mother of Pearl dial shines with an iridescent quality, while the gem-set indexes add a luxurious touch. Powered by the Omega caliber 8521 movement, this watch boasts accurate timekeeping and a remarkable power reserve of 50 hours. With its robust stainless steel case and scratch-resistant sapphire crystal, it's built to withstand the elements. Whether you're swimming, snorkeling, or just enjoying everyday wear, this Aqua Terra is the perfect companion. Its versatile design effortlessly transitions from casual to formal occasions, making it a staple in any wardrobe.
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Key Features

  • Omega caliber 8521 movement
  • Mother of Pearl dial with gem-set indexes
  • Water resistance up to 150 meters
  • Automatic winding and Co-Axial escapement for accurate timekeeping
  • Scratch-resistant sapphire crystal
  • Robust stainless steel case
  • 50-hour power reserve

Specifications

Brand
Omega
Family
Aqua Terra
Model
Seamaster Aqua Terra 150M Co-Axial 34 Stainless Steel / Diamond / MOP
Reference
231.18.34.20.55.001
Movement
8521
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
Stainless Steel 34mm
Dial Color
White
Crystal
Sapphire
Water Resistance
150

Current Listings

[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

Omega - 231.10.42.21.03.004 · $5,999
This Omega Seamaster Aqua Terra 150M 'SPECTRE' James Bond Limited Edition is a unique timepiece featuring a blue PVD dial and nods to 007 heritage, including the Bond family coat of arms on the dial and oscillating weight.

  • Condition: Great condition with minor signs of wear
  • Case diameter: 41.5mm
  • Water resistance depth rating: 150m (500ft)
  • Crystal type: Sapphire with AR treatment on both sides
Posted at
Mar 28, 2026, 11:43 PM
Active
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[WTS] Omega Seamaster Aqua Terra 231.10.42.21.02.001 - Price Reduced!

Omega Seamaster Aqua Terra 231.10.42.21.02.001 - Price Reduced!

Omega - 231.10.42.21.02.001 · $2,950
This Omega Seamaster Aqua Terra is a 41.5mm watch in great condition, featuring a white dial and excellent timegrapher results.

  • Condition: Pre-owned, very clean with light wear throughout
  • Size: 41.5mm diameter
Posted at
Mar 28, 2026, 6:19 PM
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[WTS] 2023 Omega Seamaster Aqua Terra Silver Dial 41mm 220.10.41.21.02.001 - Full Set

2023 Omega Seamaster Aqua Terra Silver Dial 41mm 220.10.41.21.02.001 - Full Set

Omega - 220.10.41.21.02.001 · $10,900
2023 Omega Seamaster Aqua Terra Silver Dial 41mm, available for sale.

  • Case material: Stainless Steel
  • Bracelet material: Stainless Steel
Posted at
Mar 28, 2026, 2:12 PM
Active
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[WTS] Omega Aqua Terra Ref 220.10.38.20.10.002 38mm Dial Bay Green

Omega Aqua Terra Ref 220.10.38.20.10.002 38mm Dial Bay Green

Omega - 220.10.38.20.10.002 · $5,200
This Omega Aqua Terra is a 38mm watch with a Bay Green dial, in perfect working condition.

  • Condition: Excellent
  • Case size: 38mm
  • Water resistance: unknown
Posted at
Mar 27, 2026, 9:11 PM
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[WTS] 2023 Omega Seamaster Aqua Terra 150M 41mm 220.12.41.21.03.002 - Full Set

2023 Omega Seamaster Aqua Terra 150M 41mm 220.12.41.21.03.002 - Full Set

Omega - 220.12.41.21.03.002
2023 Omega Seamaster Aqua Terra 150M 41mm, a luxury watch with features and details as described in the listing.

  • Year: 2023
  • Movement: Co-Axial Master Chronometer
  • Water resistance: 150m
Posted at
Mar 27, 2026, 4:30 PM
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[WTS] Omega Aqua Terra 2517.30 COMPLETE SET

Omega Aqua Terra 2517.30 COMPLETE SET

Omega - 2517.30 · $2,450
For sale is an Omega Aqua Terra 39mm quartz watch, sold as a complete set including links and warranty card.

  • Condition: Pre-owned (serviced)
  • Case Size: 39mm
  • Movement Type: quartz
Posted at
Mar 27, 2026, 4:11 PM
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[WTS] Omega Seamaster Aqua Terra 38.5mm 231.23.39.21.06.001 – Gold Bezel – Full Set – $5199

Omega Seamaster Aqua Terra 38.5mm 231.23.39.21.06.001 – Gold Bezel – Full Set – $5199

Omega - 231.23.39.21.06.001 · $5,199
a luxury watch from Omega's Seamaster Aqua Terra collection, featuring a gold bezel and measuring 38.5mm in diameter.

  • Size: 38.5mm diameter
Posted at
Mar 27, 2026, 10:27 AM
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[WTS] Omega Aqua Terra 231.10.39.21.01.001 Cal 8500 38.5mm Black Teak - $3,250

Omega Aqua Terra 231.10.39.21.01.001 Cal 8500 38.5mm Black Teak - $3,250

Omega - 231.10.39 Cal 8500 · $3,250
Up for sale is Omega Aqua Terra 231.10.39 Cal 8500 with a Calibre OMEGA 8500 movement and a steel case on original Omega steel bracelet.

  • Condition: Great condition, minor marks on case and bracelet
  • Movement: Calibre OMEGA 8500
  • Case size: 38.5mm diameter
  • Bracelet material: Steel
Posted at
Mar 26, 2026, 10:35 PM
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[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 · $1,890
Up for sale is my Omega Seamaster Aqua Terra 231.10.39, measuring at 39mm with a Calibre OMEGA 4564 quartz movement.

  • Condition: great condition, minimal marks/hairlines on the case
  • Movement: Calibre OMEGA 4564 quartz
  • Case size: 39mm
  • Water resistance: 150m
Posted at
Mar 26, 2026, 9:36 PM
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