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.

Buy Now on Jomashop

This is an affiliate link

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 Aqua Terra 41mm Black Lacquer Dial, $5200

Omega - 220.10.41.21.01.002 · $5,200

A Omega Aqua Terra with a black lacquer dial, available for sale.

Condition: Preowned
Shipping: $100 (USA)
Payment Methods: Wire,Credit Card
Warranty: 2025

Posted at

Apr 15, 2026, 10:30 AM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra 231.10.39.21.01.001 Black Teak 38.5mm - $3,250

Omega - 231.10.39.21.01.001 · $3,250

Up for sale is my great condition Omega Seamaster Aqua Terra 231.10.39.21.01.001.

Condition: Very good condition for its age, minimal marks/hairlines on case, caseback, and bracelet
Movement: Automatic Omega Calibre 8500
Case size: 38.5mm
Bracelet material: Steel

Posted at

Apr 15, 2026, 4:35 AM

Active

View listing on r/WatchExchange

Omega Aqua Terra 231.10.39 Cal 8500 38.5 mm - $2,650

Omega - 231.10.39 Cal 8500 · $2,650

Up for sale is my Omega Aqua Terra 231.10.39 Cal 8500. This watch measures at 39mm and has an OMEGA 8500 movement.

Condition: great condition, minimal marks on the case and bezel
Case size: 39mm
Movement: Calibre OMEGA 8500
Bracelet material: steel

Posted at

Apr 15, 2026, 4:33 AM

Active

View listing on r/WatchExchange

Omega Aqua Terra 2503.30 39mm Champagne Dial Box and Papers - $2,350

Omega - 2503.30 · $2,350

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 with minimal marks/hairlines on the case, caseback, and bracelet
Diameter: 39mm
Movement: Omega Calibre 2500

Posted at

Apr 15, 2026, 4:25 AM

Active

View listing on r/WatchExchange

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

Active

View listing on r/WatchExchange

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

Active

View listing on RolexForums

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

Active

View listing on RolexForums

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

Active

View listing on RolexForums