Omega Aqua Terra Seamaster Aqua Terra 150M Co-Axial 30 Red Gold / Diamond / MOP / Bracelet

Reference 231.55.30.20.55.001

Omega Seamaster Aqua Terra 150M Co-Axial 30 Red Gold / Diamond / MOP / Bracelet

About this watch

The Omega Seamaster Aqua Terra 150M Co-Axial 30 is a masterpiece of horological innovation, blending advanced technology with luxurious design. Its self-winding Caliber 8521 movement boasts precision and reliability thanks to its Co-Axial Escapement, ensuring accuracy and longevity. The watch's red gold case is durable and visually stunning, complemented by a mother of pearl dial that shimmers with iridescent quality. Diamond-set bezel and indexes add opulence without excess, while the 30mm diameter makes it perfect for smaller wrists. A water resistance of 150 meters ensures durability in wet conditions, making it ideal for active lifestyles. The watch's Geneva waves in arabesque finish speak to Omega's commitment to aesthetic excellence, making the movement as visually appealing as it is functional. With a power reserve of up to 50 hours and an automatic winding capability, this timepiece delivers on both form and function.

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Key Features

Self-winding Caliber 8521 movement
Co-Axial Escapement for improved accuracy and longevity
Red gold case with durable and visually stunning design
Mother of pearl dial with iridescent quality
Diamond-set bezel and indexes for added opulence
Water resistance of 150 meters for durability in wet conditions
Power reserve of up to 50 hours with automatic winding capability

Specifications

Brand

Omega

Family

Aqua Terra

Model

Seamaster Aqua Terra 150M Co-Axial 30 Red Gold / Diamond / MOP / Bracelet

Reference

231.55.30.20.55.001

Movement

8521

Movement Features

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

Case

Red Gold 30mm

Dial Color

White

Crystal

Sapphire

Water Resistance

150

Current Listings

Omega Seamaster Aqua Terra 150m Master Co-Axial Golf Edition (2020) Complete Kit With Extra Straps 220.12.41.21.01.002

Omega - 220.12.41.21.01.002 · $4,500

A fantastic, versatile watch with a sporty edge in the Omega Seamaster Aqua Terra Golf Edition.

Condition: Used, excellent condition
Case size: 41mm diameter
Water resistance: 150m depth rating
Movement: Omega Co-Axial Master Chronometer

Posted at

Apr 12, 2026, 2:19 AM

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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

A 2023 Omega Seamaster Aqua Terra Skyfall Blue, a luxury watch featuring a 41.5mm case size.

Condition: Excellent condition with minimal signs of wear
Year: 2023
Size: 41.5mm diameter
Contents: Watch,Inner & Outer Box,Card Holder,International Warranty Card,Pictograms Card,Instructions Manual,Hang Tag

Posted at

Apr 11, 2026, 1:17 PM

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Omega Seamaster Aqua Terra 36mm Ref. 2504.50 | Great Condition | Inky Black Sunray Dial | Co-Axial Caliber 2500 | All Original | $2450 (SERVICED)

Omega - 2504.50 · $2,450

A modern classic with the soul of a Seamaster, this Omega Aqua Terra Ref. 2504.50 features a 36mm stainless steel case, inky black sunray dial, and Co-Axial Caliber 2500 movement.

Condition: Great Condition
Movement: Serviced Automatic Caliber 2500 (Co-Axial Chronometer)
Dial: Pristine Deep Black Sunray dial with applied indices
Case: Sharp Stainless Steel construction with original factory geometry, Diameter: 36.2 mm (excluding crown), Thickness: 11 mm, Lug-to-lug: 44 mm

Posted at

Apr 11, 2026, 10:47 AM

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Omega Aqua Terra 38 mm - original new bracelet

Omega - 020STZ006276 · $895

Aqua Terra 38mm watch with a new original bracelet, barely worn.

Condition: practically new
Width: 19mm
Location: Warsaw, Poland, EU

Posted at

Apr 11, 2026, 9:42 AM

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Omega Seamaster Aqua Terra Blue 231.13.42.21.03.001 2023 B&P Repost

Omega - 231.13.42.21.03.001 · $3,549

The Omega Seamaster Aqua Terra is a luxury watch known for its sleek design and precise timekeeping, available in various sizes to suit different wrist preferences.

Condition: Excellent condition
Case Size: 41.5mm
Box And Papers: 2023 box and papers
Band Condition: pre owned but in great shape

Posted at

Apr 10, 2026, 10:08 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 adjustment: ~7"
Contents: ULTIMATE SET (box, papers, serial hang tag, spare links, shipping coffin, and digital copy of original purchase receipt)

Posted at

Apr 10, 2026, 9:11 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 Terracotta dial, symmetrical case design, and polished brushed bracelet.

Condition: UNWORN
Model name: Seamaster Aqua Terra 150M
Case size: 38mm diameter
Bracelet length: ~7" (pre-sized)

Posted at

Apr 10, 2026, 9:08 PM

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Omega Seamaster Aqua Terra – ‘Blue Wave’ – Complete Set

Omega - 23110422103006 · $5,250

The Omega Seamaster Aqua Terra 'Blue Wave' is a striking timepiece with a blue dial featuring a wave pattern, and 18K yellow gold hands and indexes. It comes in a stainless steel case on a stainless steel bracelet.

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

Posted at

Apr 10, 2026, 2:17 PM

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