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 Seamaster Aqua Terra 2503.33 Box and Papers - $2,990 - Reserved Post for u/Wild-Company1531

Omega - 2503.33 · $2,990

Up for sale is my very good condition Omega Seamaster Aqua Terra 2503.33, measuring 39mm with an Omega 2500 automatic movement.

Condition: Very good condition
Case size: 39mm diameter
Movement type: Omega 2500 automatic

Posted at

Apr 30, 2026, 3:27 AM

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

Omega - 231.10.39.21.01.001 · $2,890

Up for sale is my great condition Omega Seamaster Aqua Terra 231.10.39.21.01.001, this watch measures at 38.5mm and has an automatic Omega Calibre 8500 movement.

Condition: Very good condition, minimal marks/hairlines
Case size: 38.5mm diameter
Bracelet material: Steel
Movement type: Automatic

Posted at

Apr 29, 2026, 10:09 PM

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Omega Aqua Terra 8900 41mm Turquoise / Black Ceramic 220.32.41.21.03.001 ( new / 2026 / box and papers )

Omega - 220.32.41.21.03.001 · $6,995

Up for sale is a brand new Omega Aqua Terra 8900 with a Turquoise dial and Black Ceramic Bezel on Rubber Strap, complete with all boxes and papers.

Condition: Brand new
Case material: Stainless Steel / Black Ceramic
Movement: Master Chronometer Movement

Posted at

Apr 29, 2026, 2:35 PM

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2020 Omega Aqua Terra Captain’s Watch White/silver 6/20 Ref# 231.10.42.21.02.002 $3,249.00

Omega - 231.10.42.21.02.002 · $3,249

2020 Omega Aqua Terra Captain's Watch features a beautiful silvery white dial with Teak pattern, automatic self-winding movement, and 150M water resistance.

Condition: Fantastic condition, few hairlines on the polished bezel and links
Case size: 41.5mm diameter
Bracelet length: fits 7" wrist
Water resistance: 150m depth rating

Posted at

Apr 29, 2026, 2:35 PM

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Omega Aqua Terra 8900 41mm Green Dial 220.10.41.21.10.001 ( new / 2026 / box and papers )

Omega - 220.10.41.21.10.001 · $5,995

Aqua Terra 8900 Green Dial, featuring a 41mm stainless steel case and master co-axial movement.

Condition: Brand new
Case size: 41mm diameter
Movement: Master Co-Axial

Posted at

Apr 29, 2026, 2:31 PM

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Omega Aqua Terra 8800 38mm Green Diver 220.12.38.20.10.001 ( new / 2026 / box and papers )

Omega - 220.12.38.21.10.001 · $5,750

This Omega Aqua Terra 8800 is a brand new stainless steel watch with a green dial, featuring a Master Co-Axial movement and measuring 38mm in diameter.

Condition: Brand new
Case material: Stainless Steel
Movement type: Master Co-Axial

Posted at

Apr 29, 2026, 2:25 PM

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Omega Seamaster Aqua Terra 41.5mm - 231.10.42.21.02.001 - White Teak Automatic

Omega - 231.10.42.21.02.001 · $2,895

This is a watch-only example of the Omega Seamaster Aqua Terra in White Teak Automatic, featuring a 41.5mm size and model number 231.10.42.21.02.001.

Condition: Very clean pre-owned condition with light wear
Diameter: 41.5mm

Posted at

Apr 29, 2026, 12:30 PM

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2020 Omega Aqua Terra Captain’s Watch White/silver 6/20 Ref# 231.10.42.21.02.002 $3,249.00

Omega - 231.10.42.21.02.002 · $3,249

This 2020 Omega Aqua Terra Captain’s Watch features a beautiful silvery white dial with Teak pattern, automatic self-winding movement, and a 41.5mm case size.

Condition: Fantastic condition, with a few minor flaws
Diameter: 41.5mm
Water resistance: 150m
Power reserve: 60 hours

Posted at

Apr 29, 2026, 10:03 AM

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