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.

Buy Now on Jomashop

This is an affiliate link

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

2023 OMEGA Aqua Terra Worldtimer GMT Titanium - 220.92.43.22.99.001 - Full Set Extra OEM NATO Mint

OMEGA - 220.92.43.22.99.001 · $9,250

The Aqua Terra Worldtimer is a grade 2 titanium timepiece with a matte finish, black ceramic bezel, and laser etched dial featuring continents and indices. It's mounted on a black rubber integrated strap.

Condition: Very excellent pre-owned condition
Case size: 43mm diameter
Water resistance: 150m depth rating
Movement: Co-Axial Master Chronometer Calibre 8938 (METAS certified)

Posted at

Apr 8, 2026, 7:32 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra Worldtimer “Summer Blue”

Omega - 220.10.43.22.03.002 · $7,999

This Omega Seamaster Aqua Terra Worldtimer features a stunning 'Summer Blue' dial with laser-ablated continents, showcasing one of the most visually impressive modern Omega pieces.

Condition: Brand new old stock and unworn
Case size: 43mm
Material: stainless steel
Movement: Omega Co-Axial Master Chronometer Caliber 8938

Posted at

Apr 8, 2026, 6:39 PM

Active

View listing on r/WatchExchange

Omega - 2502.34.00 Seamaster Aqua Terra 150M Co-Axial 42.2 Stainless Steel

Omega - 2502.34.00 · $4,500

The Omega Seamaster Aqua Terra 150M Co-Axial features a 42.2mm stainless steel case and pristine white dial, exemplifying Omega's commitment to robust performance and elegant design.

Condition: Very good
Case size: 41MM diameter
Bezel material: Stainless
Movement type: Omega caliber 2500 Co-Axial Escapement Chronometer

Posted at

Apr 8, 2026, 5:56 PM

Active

View listing on r/WatchExchange

2023 Omega Seamaster Aqua Terra Skyfall Blue 231.10.42.21.03.003 41.5mm Full Set - $4,995

Omega - 231.10.42.21.03.003 · $4,995

Up for sale is a Omega Seamaster Aqua Terra Skyfall Blue, a 2023 model featuring a 41.5mm diameter case.

Condition: Excellent condition with minimal signs of wear
Case Size: 41.5mm diameter
Movement Testing: tested on a timegrapher

Posted at

Apr 8, 2026, 12:55 PM

Active

View listing on r/WatchExchange

2024 Omega Seamaster Aqua Terra Terracotta Shades 38m Red Dial on Bracelet 220.10.38.20.13.003 B+P

Omega - 220.10.38.20.13.003 · $5,600

The Omega Seamaster Aqua Terra Shades 220.10.38.20.13.003 features a rich red terracotta dial on a 38mm stainless steel case, with a Master Chronometer movement delivering accuracy and reliability.

Condition: Mint condition, almost no signs of wear
Case Diameter: 38mm
Bezel Material: Stainless Steel
Dial Color: Red

Posted at

Apr 8, 2026, 12:47 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra 231.10.39.21.01.001 Black Teak 38.5mm - $3,290

Omega - 231.10.39.21.01.001 · $3,290

Up for sale is my great condition Omega Seamaster Aqua Terra 231.10.39.21.01.001 with a steel case on original Omega steel bracelet.

Condition: very good for its age, minimal marks/hairlines on case, caseback, and bracelet
Movement: Omega Calibre 8500
Case size: 38.5mm diameter
Bracelet type: original Omega steel bracelet

Posted at

Apr 7, 2026, 9:27 PM

Active

View listing on r/WatchExchange

2025 Omega Aqua Terra 150M 41mm 220.10.41.21.03.006

Omega - 220.10.41.21.03.006 · $6,200

Year: 2025
Depth rating: 150m
Case size: 41mm

Posted at

Apr 7, 2026, 9:04 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra 150M 220.10.41.21.03.001 – Blue Teak Dial – VG – Box & Papers

Omega - 220.10.41.21.03.001 · $4,950

Condition: Very Good
Water Resistance: 150m
Power Reserve: ~60 hours
Case Size: 41mm diameter

Posted at

Apr 7, 2026, 2:24 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra 231.10.42.21.02.001 - Price Reduced!

Omega - 231.10.42.21.02.001 · $2,895

This is a Watch-only example of the Omega Seamaster Aqua Terra in White Dial, model number 231.10.42.21.02.001, featuring a 41.5mm size and excellent condition.

Condition: Very clean pre-owned condition with light wear throughout.
Size: 41.5mm

Posted at

Apr 6, 2026, 6:21 PM

Active

View listing on r/WatchExchange