Omega Aqua Terra Seamaster Aqua Terra 150M Co-Axial 38.5 Stainless Steel / Red Gold / Black

Reference 231.23.39.21.51.001

Omega Seamaster Aqua Terra 150M Co-Axial 38.5 Stainless Steel / Red Gold / Black

About this watch

The Omega Seamaster Aqua Terra 150M Co-Axial 38.5 is a masterful blend of style and functionality. This luxurious timepiece boasts a stunning combination of red gold and stainless steel, giving it a sporty yet elegant appearance. The round case measures 38.50 mm in diameter, making it suitable for both men and women. The black dial features gem-set indexes that catch the light beautifully, adding a touch of sophistication to the overall design. Arrow-shaped hands enhance visibility while also adding a modern twist to its classic face. With a water resistance of up to 150 meters, this watch is designed for function as well as form. But what truly sets it apart is the Omega caliber 8500 movement, a certified chronometer that offers an impressive 60 hours of power reserve. The Co-Axial escapement reduces friction, extending the longevity of the watch's performance. Whether you're in a business meeting or enjoying a casual day out, this watch adapts beautifully to any scenario. It's a conversation starter, and with its exquisite design, reliable movement, and versatility, it easily earns its place in the coveted collection of luxury timepieces.

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Key Features

Omega caliber 8500 movement
Certified chronometer
60 hours power reserve
Co-Axial escapement
Water resistance up to 150 meters
Red gold and stainless steel construction
Sapphire glass
38.50 mm diameter case

Specifications

Brand

Omega

Family

Aqua Terra

Model

Seamaster Aqua Terra 150M Co-Axial 38.5 Stainless Steel / Red Gold / Black

Reference

231.23.39.21.51.001

Movement

8500

Movement Features

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

Case

38.5mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

150

Current Listings

Omega Aqua Terra 2503.80 Cal 2500 39mm Blue Dial - $2,490

Omega - 2503.80 · $2,490

Up for sale is my Omega Aqua Terra 2503.80 in great condition with a Calibre OMEGA 2500 Automatic movement and measuring at 39 mm.

Condition: great condition, minimal marks on case and bracelet
Case size: 39mm diameter
Bracelet type: original Omega steel bracelet
Movement type: Calibre OMEGA 2500 Automatic

Posted at

Apr 21, 2026, 9:04 PM

Active

View listing on r/WatchExchange

Omega Aqua Terra White Co-Axial 231.10.39 38.5 mm - $2,650

Omega - 231.10.39.21.02.00 · $2,650

The Omega Seamaster Aqua Terra White Co-Axial is a 38.5mm watch with an automatic Calibre OMEGA 8500 movement.

Condition: Great condition, minimal marks/hairlines on the case and sapphire crystal smudging/scratches on the AR coating
Case size: 38.5 mm
Movement: Calibre OMEGA 8500 automatic movement
Water resistance: 150m

Posted at

Apr 21, 2026, 9:01 PM

Active

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Omega Seamaster Aqua Terra Skyfall 231.10.39 38.5mm - $3,450

Omega - 231.10.39.21.03.001 · $3,450

The Omega Seamaster Aqua Terra 'Skyfall' features a Calibre OMEGA 8500 automatic movement in a 39mm steel case with original AT bracelet and presentation box. It has a sapphire crystal and datewheel, with all functions working well.

Condition: great condition
Case size: 39mm
Movement type: automatic
Water resistance: 150m

Posted at

Apr 21, 2026, 8:56 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra 231.10.39 38.5mm Quartz Grey Teak - $1,950

Omega - 231.10.39 · $1,950

This Omega Seamaster Aqua Terra is a quartz watch with a 38.5mm steel case and original AT bracelet. It features a one-liner dial and printed indices, as well as sapphire crystal protection.

Condition: Great condition
Case material: Steel
Bracelet type: Original steel Omega steel bracelet
Crystal type: Sapphire crystal

Posted at

Apr 21, 2026, 8:50 PM

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Omega Seamaster Aqua Terra 2517.50 39mm $1700 Shipped

Omega - 2517.50 · $1,700

The Omega Seamaster Aqua Terra is a great everyday option with a classic black dial look, offering quartz accuracy and maintenance.

Condition: Used with honest wear and light scratching throughout consistent with use
Movement: quartz
Bracelet size fits wrist: 7.25in

Posted at

Apr 21, 2026, 6:47 PM

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Omega Seamaster Aqua Terra 231.10.39.21.01.001 Black Teak 38.5mm - $2,990

Omega - 231.10.39.21.01.001 · $2,990

Up for sale is my great condition Omega Seamaster Aqua Terra 231.10.39.21.01.001 with an automatic Omega Calibre 8500 movement.

Condition: Very good condition for its age
Size: 38.5mm diameter
Movement: Omega Calibre 8500
Case Material: steel

Posted at

Apr 21, 2026, 4:56 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

This Omega Aqua Terra is a high-quality watch with a 39mm steel case, Calibre OMEGA 8500 movement, and features a steel bracelet and original presentation box.

Condition: great condition, minimal marks on case and crystal
Case Size: 39mm diameter
Bracelet Material: steel
Movement Calibre: Omega 8500

Posted at

Apr 21, 2026, 4:12 AM

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Omega Seamaster Aqua Terra - 2503.30 - Clean!

Omega - 2503.30 · $2,395

This Omega Seamaster Aqua Terra comes in a 39mm size and features a silver dial and automatic movement. The watch is in fantastic condition with everything functioning as it should.

Condition: Pre-owned, light wear throughout
Size: 39mm diameter
Movement: Automatic

Posted at

Apr 20, 2026, 6:21 PM

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View listing on r/WatchExchange