Omega Aqua Terra Seamaster Aqua Terra 150M Co-Axial 30 Stainless Steel / Diamond / MOP

Reference 231.18.30.20.55.001

Omega Seamaster Aqua Terra 150M Co-Axial 30 Stainless Steel / Diamond / MOP

About this watch

The Omega Seamaster Aqua Terra 150M Co-Axial 30 is a masterpiece of luxury watchmaking, featuring a stunning mother of pearl dial and diamond accents that exude elegance and sophistication. Powered by the reliable Omega caliber 8520, this self-winding automatic movement boasts a power reserve of up to 50 hours, ensuring accuracy and precision. The watch's versatility makes it perfect for both formal events and casual wear, while its water resistance of up to 150 meters makes it an ideal companion for adventure seekers and urban dwellers alike. With its sapphire crystal and stainless steel case, this timepiece is built to last, combining exceptional craftsmanship, cutting-edge technology, and timeless design.

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Key Features

Stainless Steel Case
Sapphire Crystal
Mother of Pearl Dial
Gem-Set Indexes
Omega Caliber 8520 Movement
Co-Axial Escapement
150m Water Resistance

Specifications

Brand

Omega

Family

Aqua Terra

Model

Seamaster Aqua Terra 150M Co-Axial 30 Stainless Steel / Diamond / MOP

Reference

231.18.30.20.55.001

Movement

8520

Movement Features

Hours, Minutes, Seconds
Date
Chronometer, Co-Axial Escapement

Case

Stainless Steel 30mm

Dial Color

White

Crystal

Sapphire

Water Resistance

150

Current Listings

Omega Seamaster Aqua Terra 41mm

Omega - 220.10.41.21.03.001 · $3,900

A 41mm Aqua Terra in teakwood blue with a stainless steel bracelet and OEM blue rubber strap, serviced within the last 2 months.

Condition: Excellent, recently serviced
Case size: 41mm
Bracelet/strap type: blue rubber strap, OEM
Band closure: deployant clasp

Posted at

Apr 9, 2026, 10:23 AM

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2023 OMEGA Aqua Terra Worldtimer GMT Titanium - 220.92.43.22.99.001 - Full Set Extra OEM NATO Mint

OMEGA - 220.92.43.22.99.001 · $9,250

The Aqua Terra Worldtimer is a grade 2 titanium timepiece with a matte finish, black ceramic bezel, and laser etched dial featuring continents and indices. It's mounted on a black rubber integrated strap.

Condition: Very excellent pre-owned condition
Case size: 43mm diameter
Water resistance: 150m depth rating
Movement: Co-Axial Master Chronometer Calibre 8938 (METAS certified)

Posted at

Apr 8, 2026, 7:32 PM

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Omega Seamaster Aqua Terra Worldtimer “Summer Blue”

Omega - 220.10.43.22.03.002 · $7,999

This Omega Seamaster Aqua Terra Worldtimer features a stunning 'Summer Blue' dial with laser-ablated continents, showcasing one of the most visually impressive modern Omega pieces.

Condition: Brand new old stock and unworn
Case size: 43mm
Material: stainless steel
Movement: Omega Co-Axial Master Chronometer Caliber 8938

Posted at

Apr 8, 2026, 6:39 PM

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Omega - 2502.34.00 Seamaster Aqua Terra 150M Co-Axial 42.2 Stainless Steel

Omega - 2502.34.00 · $4,500

The Omega Seamaster Aqua Terra 150M Co-Axial features a 42.2mm stainless steel case and pristine white dial, exemplifying Omega's commitment to robust performance and elegant design.

Condition: Very good
Case size: 41MM diameter
Bezel material: Stainless
Movement type: Omega caliber 2500 Co-Axial Escapement Chronometer

Posted at

Apr 8, 2026, 5:56 PM

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2023 Omega Seamaster Aqua Terra Skyfall Blue 231.10.42.21.03.003 41.5mm Full Set - $4,995

Omega - 231.10.42.21.03.003 · $4,995

Up for sale is a Omega Seamaster Aqua Terra Skyfall Blue, a 2023 model featuring a 41.5mm diameter case.

Condition: Excellent condition with minimal signs of wear
Case Size: 41.5mm diameter
Movement Testing: tested on a timegrapher

Posted at

Apr 8, 2026, 12:55 PM

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2024 Omega Seamaster Aqua Terra Terracotta Shades 38m Red Dial on Bracelet 220.10.38.20.13.003 B+P

Omega - 220.10.38.20.13.003 · $5,600

The Omega Seamaster Aqua Terra Shades 220.10.38.20.13.003 features a rich red terracotta dial on a 38mm stainless steel case, with a Master Chronometer movement delivering accuracy and reliability.

Condition: Mint condition, almost no signs of wear
Case Diameter: 38mm
Bezel Material: Stainless Steel
Dial Color: Red

Posted at

Apr 8, 2026, 12:47 PM

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Omega Seamaster Aqua Terra 231.10.39.21.01.001 Black Teak 38.5mm - $3,290

Omega - 231.10.39.21.01.001 · $3,290

Up for sale is my great condition Omega Seamaster Aqua Terra 231.10.39.21.01.001 with a steel case on original Omega steel bracelet.

Condition: very good for its age, minimal marks/hairlines on case, caseback, and bracelet
Movement: Omega Calibre 8500
Case size: 38.5mm diameter
Bracelet type: original Omega steel bracelet

Posted at

Apr 7, 2026, 9:27 PM

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