Omega Aqua Terra Seamaster Aqua Terra 150M Master Co-Axial 38.5 Stainless Steel / Red Gold / MOP / Bracelet

Reference 231.20.39.21.55.003

Omega Seamaster Aqua Terra 150M Master Co-Axial 38.5 Stainless Steel / Red Gold / MOP / Bracelet

About this watch

The Omega Seamaster Aqua Terra 150M Master Co-Axial 38.5 is a masterpiece of luxury watchmaking, seamlessly blending elegance with functionality. Its unique mother-of-pearl dial and gem-set indexes create a truly one-of-a-kind look, while its stainless steel case and red gold accents exude luxurious sophistication. With a water resistance of 150 meters, this watch is perfect for those who love to stay active while still looking stylish. At the heart of the Aqua Terra lies the Omega caliber 8500, an in-house automatic movement that has been a game-changer in the watch industry since its introduction in 2007. This remarkable movement boasts a total power reserve of 60 hours and features a Co-Axial escapement that significantly reduces friction between the movement's components, enhancing its longevity and accuracy. Whether you're attending a formal gala or diving into the ocean, this watch is designed to impress with its stunning aesthetics, reliable movement, and robust features.

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Key Features

Unique MOP dial and gem-set indexes
Water-resistant up to 150 meters
In-house Omega caliber 8500 movement
60-hour power reserve
Co-Axial escapement for enhanced accuracy and longevity
Stainless steel case with red gold accents
38.5mm diameter suitable for both men and women

Specifications

Brand

Omega

Family

Aqua Terra

Model

Seamaster Aqua Terra 150M Master Co-Axial 38.5 Stainless Steel / Red Gold / MOP / Bracelet

Reference

231.20.39.21.55.003

Movement

8500

Movement Features

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

Case

38.5mm

Dial Color

White

Crystal

Sapphire

Water Resistance

150

Current Listings

Omega Seamaster Aqua Terra 36mm 2504.80 Full Set

Omega - 2504.80 · $3,700

Omega Seamaster Aqua Terra 36mm watch in great condition, with a deployant rubber strap from Helvetus.

Condition: Great condition with minor wear
Bracelet condition: minor wear

Posted at

Feb 14, 2026, 11:21 AM

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Omega Aqua Terra 220.10.41.21.10.001 — 09/2025 Full Set — $4795 Shipped obo

Omega - 220.10.41.21.10.001 · $4,795

Up for sale is my Omega Aqua Terra 41mm in excellent condition, featuring a stunning green teak dial and Master Chronometer Co-Axial movement.

Condition: Excellent
Size: 41mm diameter
Year: 2025
Water resistance: 150m

Posted at

Feb 14, 2026, 12:17 AM

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Omega Seamaster Aqua Terra 150m 38.5mm

Omega - 231.10.39.21.02.001 · $2,950

This Omega Seamaster Aqua Terra is a steel on steel model, featuring a 38.5mm case and 150m water resistance.

Condition: Very good condition
Water Resistance: 150m depth rating
Case Size: 38.5mm diameter
Bracelet Links: includes all removable links plus an extra half-link

Posted at

Feb 13, 2026, 9:46 PM

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Omega Aqua Terra 2015 38.5mm 231.10.39.21.02.001 B&P

Omega - 231.10.39.21.02.001 · $3,100

Aqua Terra 2015 model, 38.5mm diameter, suitable for everyday wear with versatile style.

Condition: Excellent condition
Size: 38.5mm diameter

Posted at

Feb 13, 2026, 4:28 PM

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Omega Seamaster Aqua Terra Quartz - White Dial - 231.10.39.61.02.001 - Price Reduced!

Omega - 231.10.39.61.02.001 · $1,950

This Omega Seamaster Aqua Terra Quartz features a white dial and is powered by a quartz movement, coming on its original stainless steel bracelet.

Condition: pre-owned with minor wear
Size: 38.5mm diameter
Movement: quartz
Bracelet material: stainless steel

Posted at

Feb 13, 2026, 12:58 PM

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Omega Seamaster Aqua Terra – Annual Calendar – 38.5mm Blue Dial

Omega - 23110392203001 · $4,400

The Omega Seamaster Aqua Terra features a 38.5mm stainless steel case on a stainless steel bracelet, with an annual calendar complication that automatically accounts for months with 30 or 31 days.

Condition: Excellent condition
Case size: 38.5mm diameter
Movement: Omega Co-Axial calibre 8601

Posted at

Feb 13, 2026, 11:38 AM

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2023 Omega Aqua Terra - Weave Dial

Omega - 231.10.42.21.01.006 · $4,350

A 2023 Omega Aqua Terra watch featuring a black weave dial and rose gold colored hands/makers.

Condition: Very Good
Case size: 41.5mm diameter
Box condition: Outer Box / Inner Box / Warranty Card / Pictograms Card / Manual - Front flap loose / some wear marks

Posted at

Feb 12, 2026, 9:54 PM

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