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

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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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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Omega Aqua Terra Shades Sandstone - 38mm - 220.10.38.20.09.001

Omega - 220.10.38.20.09.001 · $3,850

This Omega Seamaster Aqua Terra Shades features a stunning 'Sandstone' dial and is available in 38mm size. It's a watch-only example that's been lightly used.

Condition: lightly pre-owned with light, normal wear throughout and small mark on crystal near 3 o'clock
Case Size: 38mm diameter
Movement Amplification: 300+ amplitude
Accuracy: +1 second/day

Posted at

Mar 26, 2026, 6:35 PM

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36mm Omega Seamaster Aqua Terra Quartz - Ref 2518.50 - $1900 SHIPPED

Omega - 2518.50 · $1,900

A 36mm Omega Seamaster Aqua Terra Quartz watch, powered by a Calibre OMEGA 1538 quartz movement.

Condition: Excellent condition
Case Size: 36mm diameter
Bracelet Length: up to 7"
Movement Type: quartz

Posted at

Mar 26, 2026, 3:27 PM

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2024 Omega Seamaster Aqua Terra 150M 41mm Silver Dial 220.12.41.21.02.002 Full Set Excellent

Omega - 220.12.41.21.02.002 · $5,750

The Omega Seamaster Aqua Terra 150M is a versatile watch that combines everyday style with refined nautical design. Its 41mm stainless steel case features a silver "teak concept" dial, inspired by wooden yacht decks.

Condition: Excellent
Diameter: 41mm
Depth rating: 150m

Posted at

Mar 26, 2026, 12:31 PM

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