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 2503.33 - $2,650

Omega - 2503.33 · $2,650

This Omega Seamaster Aqua Terra 2503.33 is a 39mm watch featuring an automatic movement and a steel case on an original Omega Steel bracelet.

Condition: Good condition with a conservative rating of 8.9/10
Movement: Omega 2500 automatic movement
Case size: 39mm diameter
Bracelet type: Original Omega Steel bracelet

Posted at

Apr 5, 2026, 10:42 PM

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Omega Seamaster Aqua Terra 231.10.39 38.5mm Skyfall - $3,350

Omega - 231.10.39.21.03.001 · $3,350

Up for sale is a Omega Seamaster Aqua Terra 231.10.39.21.03.001 with an automatic movement and measuring at 38.5mm. It has a steel case on original Omega steel bracelet.

Condition: Very good condition for it's age (8.9/10)
Case size: 38.5mm diameter
Bracelet material: Steel
Movement: Automatic Omega Calibre 8500

Posted at

Apr 5, 2026, 10:38 PM

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Omega Aqua Terra 231.10.39 Cal 8500 39mm - $2,690

Omega - 231.10.39 Cal 8500 · $2,690

Up for sale is my Omega Aqua Terra 231.10.39 Cal 8500, a watch with a 39mm steel case on original Omega steel bracelet and an OMEGA 8500 movement.

Condition: Great condition, minor marks on the case and crystal
Case size: 39mm diameter
Movement: Calibre OMEGA 8500
Bracelet material: Steel

Posted at

Apr 5, 2026, 10:27 PM

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Omega Seamaster Aqua Terra 2504.50 - $2,490

Omega - 2504.50 · $2,490

Up for sale is my Omega Seamaster Aqua Terra 2504.50.00, a 36mm automatic watch with a steel case and original Omega Steel bracelet.

Condition: Very good condition
Case Size: 36mm diameter
Movement Type: automatic

Posted at

Apr 5, 2026, 10:19 PM

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Omega Aqua Terra 231.10.39 Cal 8500, White Teak 39mm, Box and Papers - $2,750

Omega - 231.10.39 Cal 8500 · $2,750

Up for sale is my Omega Aqua Terra 231.10.39 Cal 8500, a 39mm watch with an OMEGA 8500 movement.

Condition: Great condition with minimal marks
Case size: 39mm diameter
Movement type: Calibre OMEGA 8500
Bracelet material: Steel

Posted at

Apr 5, 2026, 9:52 PM

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Omega Aqua Terra 2503.30 39mm Champagne Dial Box and Papers - $2,390

Omega - 2503.30 · $2,390

Up for sale is my great condition Omega Seamaster 2503.30, measuring at 39mm with an automatic Omega Calibre 2500 movement.

Condition: Very good condition for its age
Movement: Omega Calibre 2500
Bracelet material: Steel
Case size: 39mm diameter

Posted at

Apr 5, 2026, 9:40 PM

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Omega Aqua Terra 8800 - 38mm - Lacquer Black - 220.10.38.20.01.004 ( new )

Omega - 220.10.38.20.01.004 · $5,750

Up for sale is a brand new Omega Aqua Terra 8800 38mm with Lacquer Black Dial, reference # 220.10.38.20.01.004.

Condition: Brand new
Case size: 38mm
Movement type: Master Chronometer Movement

Posted at

Apr 3, 2025, 3:15 PM

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Omega Seamaster Aqua Terra Green 41mm

Omega - 220.10.41.21.10.001 · $4,200

The Omega Seamaster Aqua Terra Green is a versatile watch suitable for daily wear, featuring a Master Chronometer certified calibre 8900 with 60 hours of power reserve and antimagnetic properties. It has an excellent bracelet and proportions.

Condition: Near-mint, 94-95%
Case size: 41mm x 47.9mm lug to lug
Thickness: 13.2mm
Power reserve: 60 hours

Posted at

Mar 31, 2025, 10:30 AM

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Omega Seamaster Aqua Terra Co-Axial White Blue Stainless Steel MINT 2503.33.00

Omega - Aqua Terra Co-Axial White Blue Stainless Steel 2503.33.00 · $3,410

The Omega Seamaster Aqua Terra Co-Axial is a sport-ready watch with dress-worthy charm, featuring a white dial with blue accents and a stainless steel case with brushed and polished finishes.

Condition: Mint
Movement: Co-Axial
Case size: Not specified
Water resistance: Not specified

Posted at

Mar 25, 2025, 5:11 PM

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