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 (220.10.41.21.01.002)

Omega Seamaster Aqua Terra 150M (220.10.41.21.01.002)

Omega - 220.10.41.21.01.002 · $4,975
This Omega Seamaster Aqua Terra 150M features a black lacquered dial on a steel bracelet and comes with boxes, warranty card dated April 2025.

  • Condition: Excellent
  • Case size: 41mm diameter
  • Case material: Stainless Steel
  • Bracelet material: Stainless Steel
Posted at
May 7, 2026, 6:31 AM
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[WTS] Omega Seamaster Aqua Terra 38.5 "Skyfall" Blue Dial - ref 231.10.39.21.03.001 - New Serviced w/ 1 Year Warranty

Omega Seamaster Aqua Terra 38.5 "Skyfall" Blue Dial - ref 231.10.39.21.03.001 - New Serviced w/ 1 Year Warranty

Omega - 231.10.39.21.03.001 · $12,000
This Omega Aqua Terra 38.5mm 'Skyfall' is the true Bond edition, featuring a blue vertical teak deck dial and date window at the 3 o'clock.

  • Condition: Excellent condition
  • Diameter: 38.5mm
  • Thickness: 13mm
  • Movement: Omega Calibre 8500 coaxial
Posted at
May 6, 2026, 11:18 PM
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[WTS] Omega Seamaster Aqua Terra 38mm Teak Blue Full Set 2024 Chicago - $3500

Omega Seamaster Aqua Terra 38mm Teak Blue Full Set 2024 Chicago - $3500

Omega - Aqua Terra 38mm · $3,500
Omega Seamaster Aqua Terra 38mm teak blue men's wristwatch dated September, 2024. Full set including warranty card, certifications, manual, tags, etc.

  • Condition: Pre-owned with minor nicks and scratches
  • Year: 2024
  • Size: 38mm diameter
  • Dial color: teak blue
Posted at
May 6, 2026, 11:07 AM
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[WTS] Omega Aqua Terra 231.10.39 Cal 8500 38.5 mm Master Co-Axial - $2,950

Omega Aqua Terra 231.10.39 Cal 8500 38.5 mm Master Co-Axial - $2,950

Omega - 231.10.39.21.02.002 · $2,950
Up for sale is my Omega Aqua Terra 231.10.39 Cal 8500 with a 39mm steel case and original Omega steel bracelet.

  • Condition: Great condition, minimal marks on the case and caseback.
  • Case diameter: 39mm
  • Bracelet type: Original Omega steel bracelet
  • Bracelet material: Steel
Posted at
May 5, 2026, 10:22 PM
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[WTS] Omega Aqua Terra 231.10.39.21.01.001 Cal 8500 38.5mm Black Teak - $2,890

Omega Aqua Terra 231.10.39.21.01.001 Cal 8500 38.5mm Black Teak - $2,890

Omega - 231.10.39 Cal 8500 · $2,890
This Omega Aqua Terra 231.10.39 Cal 8500 features a 38.5mm steel case with a Calibre OMEGA 8500 movement.

  • Condition: Great condition, minimal marks present
  • Case size: 38.5mm diameter
  • Movement: Calibre OMEGA 8500
  • Bracelet material: Steel
Posted at
May 5, 2026, 10:07 PM
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[WTS] Omega Aqua Terra 231.10.39 Cal 8500 38.5 mm Master Co-Axial Box and Papers - $3,250

Omega Aqua Terra 231.10.39 Cal 8500 38.5 mm Master Co-Axial Box and Papers - $3,250

Omega - 231.10.39.21.02.002 · $3,250
Up for sale is my Omega Aqua Terra 231.10.39 Cal 8500 watch in great condition. It measures 39mm with a steel case on original Omega steel bracelet.

  • Condition: Great condition, some minor marks on the case and caseback
  • Case size: 39mm
  • Movement: Calibre OMEGA 8500
  • Bracelet material: Steel
Posted at
May 5, 2026, 10:04 PM
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[WTS] Omega Aqua Terra 2503.80 - 39mm - Blue Automatic

Omega Aqua Terra 2503.80 - 39mm - Blue Automatic

Omega - 2503.80 · $2,750
This Omega Aqua Terra Blue Automatic is a 39mm watch-only example in good condition.

  • Condition: Pre-owned, clean condition with light wear throughout
  • Size: 39mm diameter
Posted at
May 5, 2026, 5:37 PM
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[WTS] 2018 Omega Seamaster Aqua Terra 150M 38.5mm Teak - 231.10.39.21.02.001 - Box & Papers

2018 Omega Seamaster Aqua Terra 150M 38.5mm Teak - 231.10.39.21.02.001 - Box & Papers

Omega - 231.10.39.21.02.001 · $3,100
Aqua Terra in perfect size, suitable for everyday wear with any outfit.

  • Condition: Excellent condition
  • Case size: 38.5mm diameter
Posted at
May 5, 2026, 3:36 PM
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[WTS] Omega Aqua Terra 2503.33.00 (39mm)

Omega Aqua Terra 2503.33.00 (39mm)

Omega - 2503.33.00 · $2,600
Up for sale is my Omega Aqua Terra that has been worn sparingly by me since I bought it on here back in 2022. It received a full service by Omega in May 2023.

  • Condition: Excellent, with normal signs of wear
  • Size: 39mm diameter
  • Hands included: 2 sets (blue original and silver replacement)
  • Original box: not included
Posted at
May 5, 2026, 12:14 PM
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