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

Reference 231.23.30.20.55.001

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

About this watch

The Omega Seamaster Aqua Terra 150M Co-Axial 30 (model 231.23.30.20.55.001) is a testament to Omega's reputation for luxury and performance, merging functionality with elegance. The watch features a stunning mother-of-pearl dial, reliable automatic movement, and impressive water resistance of 150 meters. The combination of stainless steel and red gold creates a striking contrast, while the mother-of-pearl dial adds an element of luxury and sophistication. With its Co-Axial escapement and chronometer certification, this watch is built to perform beautifully for years to come. Whether you're diving, swimming, or simply caught in a rain shower, this watch is more than capable of handling various environments. The robust sapphire crystal adds an extra layer of protection against scratches, ensuring that your watch maintains its beauty over time. With a diameter of just 30 mm, the Omega Seamaster Aqua Terra is designed to fit comfortably on various wrist sizes, making it versatile enough to suit any occasion.

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Key Features

Omega caliber 8520 automatic movement
150 meters water resistance
Mother-of-pearl dial with gem-set indexes and arrow-shaped hands
Stainless steel and red gold construction
Chronometer certification
Co-Axial escapement for reduced friction and increased longevity
Robust sapphire crystal for scratch protection

Specifications

Brand

Omega

Family

Aqua Terra

Model

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

Reference

231.23.30.20.55.001

Movement

8520

Movement Features

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

Case

30mm

Dial Color

White

Crystal

Sapphire

Water Resistance

150

Current Listings

Omega Seamaster Aqua Terra 41mm White 220.10.41.21.02.001 2024 Full Set - $5,095

Omega - 220.10.41.21.02.001 · $5,095

Up for sale is a Omega Seamaster Aqua Terra White, featuring a 41mm size and reference number 220.10.41.21.02.001, manufactured in 2024.

Condition: Excellent condition with minimal signs of wear
Year: 2024
Contents: Watch (full links),Inner & Outer Box,Card Holder,International Warranty Card,Master Chronometer Card,Pictograms Card
Shipping: fully insured in the USA through Fedex free of charge within 24 hours of receiving payment

Posted at

Feb 21, 2026, 11:46 AM

Active

View listing on r/WatchExchange

Omega Aqua Terra Shades - 38mm Sandstone - 220.10.38.20.09.001

Omega - 220.10.38.20.09.001 · $3,995

This Omega Seamaster Aqua Terra Shades 'Sandstone' is a watch-only example in good condition with a stunning dial. It's running exceptionally well at approximately +1 second/day with 300+ amplitude.

Condition: lightly pre-owned with light, normal wear throughout
Size: 38mm diameter
Wrist size: varies (shown in photo reel)
Movement accuracy: +1 second/day

Posted at

Feb 20, 2026, 6:55 PM

Active

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Omega Seamaster Aqua Terra 2518.30 €1750

Omega - 2518.30 · $1,750

The Omega Seamaster Aqua Terra is a luxury watch model that combines style and functionality. It features a sleek design with a 41mm case size, making it suitable for both men and women.

Condition: really good condition with minor signs of wear
Box: original box included
Links: all original links and parts

Posted at

Feb 20, 2026, 5:56 PM

Active

View listing on r/WatchExchange