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 Seamaster Aqua Terra Ref 220.10.41.21.02.001 - 41mm FULL SET! -$5500

Omega - 220.10.41.21.02.001 · $5,500

A used Omega Seamaster Aqua Terra with a 41mm case size, sold as part of a full set including box and papers.

Condition: Pre-owned
Case size: 41mm
Box: true

Posted at

Apr 18, 2026, 5:54 PM

Active

View listing on r/WatchExchange

2023 Omega Seamaster Aqua Terra Skyfall Blue 231.10.42.21.03.003 41.5mm Full Set - $4,795

Omega - 231.10.42.21.03.003 · $4,795

Up for sale is a **Omega Seamaster Aqua Terra Skyfall Blue** in excellent condition, thoroughly tested on a timegrapher and running well.

Condition: Excellent condition with minimal signs of wear
Case size: 41.5mm diameter
Year: 2023

Posted at

Apr 18, 2026, 5:15 PM

Active

View listing on r/WatchExchange

Omega Aqua Terra 2503.50

Omega - 2503.50 · $2,650

This Omega Aqua Terra 2503.50 is an automatic watch that has been serviced by the manufacturer, Omega.

Condition: Great condition with minor wear
Serviced: yes, by Omega
Payment Methods: crypto, all other methods except PayPal
Accepts Trades: yes, only for specified brands

Posted at

Apr 18, 2026, 2:30 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra 150M 40mm Teal Gradient Dial 215.30.40.20.03.002 - Full Kit - $5,900

Omega - 215.30.40.20.03.002 · $5,900

This Omega Seamaster Aqua Terra features a 40mm stainless steel case with a teal gradient dial, Co-Axial Master Chronometer movement, and a screw-down crown.

Condition: Very good pre-owned condition
Case diameter: 40mm
Water resistance depth rating: 150m

Posted at

Apr 18, 2026, 2:06 PM

Active

View listing on r/WatchExchange

Omega Aqua Terra 36mm Reference 2504.80 Deep blue sunray dial slim caliber 1120 all original (serviced) $2400

Omega - 2504.80 · $2,400

A Omega Aqua Terra with a 36mm case, deep blue sunray dial and slim caliber 1120.

Condition: pre-owned, serviced
Case diameter: 36mm

Posted at

Apr 18, 2026, 1:38 PM

Active

View listing on r/WatchExchange

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

A sophisticated travel companion that puts the world on your wrist, featuring a 43mm stainless steel case, a dial showcasing a vision of Earth, and a Master Chronometer Calibre 8938.

Condition: VERY GOOD (some light scratches on case and bracelet)
Case diameter: 43mm
Bracelet size: ~7"

Posted at

Apr 17, 2026, 10:05 PM

Active

View listing on r/WatchExchange

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 38mm stainless steel case with a Terracotta dial, powered by the Co-Axial Master Chronometer Calibre 8800.

Condition: UNWORN
Diameter: 38mm
Bracelet length: ~7 inches
Movement: Co-Axial Master Chronometer Calibre 8800

Posted at

Apr 17, 2026, 10:02 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra – James Bond SkyFall – 38.5mm

Omega - 231.10.39.21.03.001 · $4,000

This Omega Seamaster Aqua Terra 150M 'SKYFALL' is a James Bond edition watch with a blue teak pattern dial, stainless steel case, and Omega Co-Axial 8500 calibre automatic movement. It features a 38.5mm diameter.

Condition: Excellent
Case size: 38.5mm
Movement: Omega Co-Axial 8500 calibre

Posted at

Apr 17, 2026, 6:01 PM

Active

View listing on r/WatchExchange