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

2024 Omega Seamaster Aqua Terra "Summer Blue" 41mm 220.12.41.21.03.008 Full Set Excellent

Omega - 220.12.41.21.03.008

The 2024 Omega Seamaster Aqua Terra features a captivating 'Summer Blue' dial with sunburst pattern and light blue Super-LumiNova hands and indexes.

Condition: Excellent
Year: 2024
Contents: Full Set

Posted at

May 2, 2026, 3:45 PM

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Omega Seamaster Aqua Terra 150M 220.10.41.21.06.001 - Full Kit - $3950

Omega - 220.10.41.21.06.001 · $3,950

This Omega Seamaster Aqua Terra is for sale, purchased from Liljenquist and Beckstead in Bethesda on March 14th, 2024. It's a full kit with box, papers, hangtag, and extra links.

Condition: Heavily scratched
Purchase Date: 3/14/2024
Warranty Date: 3/14/2024

Posted at

May 2, 2026, 1:46 PM

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Omega Seamaster Aqua Terra – ‘Blue Wave’ with Gold Accents – Complete Set

Omega - 23110422103006 · $4,950

This Omega Seamaster Aqua Terra 'Blue Wave' features a blue dial with wave pattern, gold accents and a stainless steel case on a bracelet. It is powered by the Omega Master Co-Axial calibre 8500, resistant to magnetic fields and water up to 150M.

Condition: Excellent all-around condition
Case size: 41.5mm diameter
Water resistance: 150M / 15 bar
Power reserve: 60 hours

Posted at

May 2, 2026, 1:15 PM

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(Omega) Seamaster Aqua Terra 2517.50 $2,099

Omega - 2517.50 · $2,099

For sale is my 1st gen Omega Seamaster Aqua Terra, reference 2517.50. This is the 39mm, black dial, quartz variant. The watch is in great external condition and internally functioning as intended.

Condition: Great external condition, good internal condition
Case size: 39mm
Movement type: quartz

Posted at

May 1, 2026, 9:37 PM

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

OMEGA - 220.10.43.22.03.002 · $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.

Condition: VERY GOOD, some light scratches on case and bracelet.
Case size: 43mm
Bracelet length: ~7"
Movement: Master Chronometer Calibre 8938

Posted at

May 1, 2026, 8:04 PM

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

OMEGA - 220.10.38.20.13.003 · $6,100

The OMEGA Seamaster Aqua Terra Ref. 220.10.38.20.13.003 features a 38mm stainless steel case with a Terracotta dial, powered by the Co-Axial Master Chronometer Calibre 8800.

Condition: [UNWORN]
Case size: 38mm
Bracelet length: ~7"
Contents: [ULTIMATE SET], includes box, papers, serial hang tag, spare links, shipping coffin, and digital copy of original purchase receipt

Posted at

May 1, 2026, 8:01 PM

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PRICE DROP!!! LNIB Omega Seamaster Aqua Terra “James Bond” 007 Spectre 41.5mm Blue Teak Dial – Ref. 231.10.42.21.03.003

Omega - 231.10.42.21.03.003 · $4,700

The Omega Seamaster Aqua Terra is a balanced and wearable model featuring a stainless steel case paired with a blue 'teak concept' dial, inspired by luxury sailboats.

Condition: Like New
Case size: 41.5mm
Case material: Stainless Steel
Diameter: 40mm (case diameter)

Posted at

May 1, 2026, 7:08 PM

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