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, 41mm (Ref: 220.10.41.21.02.004) Small Seconds - $4500 USD Shipped

Omega Seamaster Aqua Terra 150m, 41mm (Ref: 220.10.41.21.02.004) Small Seconds - $4500 USD Shipped

Omega - 220.10.41.21.02.004 · $4,500
This Omega Seamaster Aqua Terra 150M is a 41mm watch with a silver dial and blue accents, featuring small seconds.

  • Condition: lightly used with minor wear
  • Case diameter: 41mm
  • Water resistance: 150m
Posted at
May 11, 2026, 3:33 AM
Active
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[WTS] OMEGA Seamaster Aqua Terra “Shades” 38mm 220.20.38.20.02.002 Two Tone “Moonshine” Gold Complete Set

OMEGA Seamaster Aqua Terra “Shades” 38mm 220.20.38.20.02.002 Two Tone “Moonshine” Gold Complete Set

OMEGA - 220.20.38.20.02.002 · $9,650
The OMEGA Seamaster Aqua Terra 'Shades' is a limited edition watch released in 2024, featuring a 38mm case, two-tone bracelet, and sunburst silver dial. It's powered by the Co-Axial Master Chronometer 8800 movement and comes with a factory warranty until 2029.

  • Condition: Excellent pre-owned condition
  • Case size: 38mm
  • Case material: Stainless Steel / 18k Moonshine Gold
  • Bezel material: 18k Moonshine Gold
Posted at
May 10, 2026, 11:43 PM
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[WTS] Omega Seamaster Aqua Terra 2504.50 36mm - $2,390

Omega Seamaster Aqua Terra 2504.50 36mm - $2,390

Omega - 2504.50.00 · $2,390
Up for sale is my Omega Seamaster Aqua Terra 2504.50.00 in great shape, featuring an automatic movement and measuring 36mm.

  • Condition: 8.9/10
  • Movement: automatic
  • Bracelet: original Omega Steel
  • Case size: 36mm
Posted at
May 10, 2026, 9:06 PM
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[WTS] Omega Aqua Terra Quartz 2517.80 39mm Box and Papers - $1,950

Omega Aqua Terra Quartz 2517.80 39mm Box and Papers - $1,950

Omega - 2517.80 · $1,950
Up for sale is my Omega Seamaster 2517.80 in great condition with a Calibre Omega 1538 quartz movement and measures at 39mm.

  • Condition: Great condition, minimal marks on the case and bracelet
  • Case size: 39mm diameter
  • Movement: Calibre Omega 1538 quartz movement
Posted at
May 10, 2026, 8:48 PM
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[WTS] Omega Seamaster Aqua Terra 41.5mm "Spectre" Blue - 231.10.42.21.03.003

Omega Seamaster Aqua Terra 41.5mm "Spectre" Blue - 231.10.42.21.03.003

Omega - 231.10.42.21.03.003 · $3,695
The Omega Seamaster Aqua Terra 41.5mm 'Spectre' Blue features a blue dial and is offered in excellent pre-owned condition. The watch has been well-maintained and is still fully functional.

  • Condition: Pre-owned, great condition with light wear and minor markings on the crystal
  • Diameter: 41.5mm
  • Bracelet links: Center links brushed instead of polished
Posted at
May 10, 2026, 5:58 PM
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[WTS] Omega Seamaster Aqua Terra 150M Co-Axial. 220.10.41.21.10.001, 41 mm. Box, Papers.

Omega Seamaster Aqua Terra 150M Co-Axial. 220.10.41.21.10.001, 41 mm. Box, Papers.

Omega - 220.10.41.21.10.001 · $4,195
A Omega Seamaster Aqua Terra 150M Co-Axial with a 41mm diameter and 150m water resistance is being sold. The watch comes in its original box along with papers.

  • Case size: 41 mm
  • Box and papers included: true
Posted at
May 9, 2026, 4:46 PM
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[WTS] *Rare* Omega Seamaster Aqua Terra Gray Teak Dial 43mm GMT Chronograph in Mint Condition

*Rare* Omega Seamaster Aqua Terra Gray Teak Dial 43mm GMT Chronograph in Mint Condition

Omega - 231.10.43.52.06.001 · $4,390
The Omega Seamaster Aqua Terra GMT Chronograph is presented in mint condition and combines sporty functionality with refined everyday elegance, featuring a grey teak-pattern dial.

  • Condition: Mint
  • Case size: 43mm diameter
  • Case material: Stainless Steel
  • Dial type: Grey Teak Dial
Posted at
May 9, 2026, 11:30 AM
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[WTS] Omega Seamaster Aqua Terra Worldtimer | Ref. 220.12.43.22.03.001 | 2021 | Full Set | Active Warranty

Omega Seamaster Aqua Terra Worldtimer | Ref. 220.12.43.22.03.001 | 2021 | Full Set | Active Warranty

Omega - 220.12.43.22.03.001 · $7,250
This Omega Seamaster Aqua Terra Worldtimer features a striking blue dial with a laser-ablated globe, allowing simultaneous reading of time zones worldwide. The watch is powered by Omega's Co-Axial Master Chronometer Caliber 8938 and has a water resistance of 150 meters.

  • Condition: Like-new
  • Case Size: 43mm diameter
  • Water Resistance: 150m depth rating
  • Accessories: Full set including box, warranty card, Master Chronometer card, pictograms, booklets, and accessories
Posted at
May 9, 2026, 11:26 AM
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[WTS] Omega Seamaster Aqua Terra 150M 38.5mm Blue “Teak” Dial -2023 - Full Set - Mint Condition - Active Factory Warranty

Omega Seamaster Aqua Terra 150M 38.5mm Blue “Teak” Dial -2023 - Full Set - Mint Condition - Active Factory Warranty

Omega - 231.10.39.21.03.002 · $4,450
This Omega Seamaster Aqua Terra is a James Bond Spectre reference model, featuring a blue 'Teak' dial.

  • Condition: Mint Condition
  • Year: 2023
Posted at
May 9, 2026, 11:19 AM
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