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

Reference 231.23.39.21.02.001

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

About this watch

The Omega Seamaster Aqua Terra 150M Master Co-Axial is a masterpiece of luxury watchmaking, combining elegance with functionality in a single timepiece. Crafted from a blend of stainless steel and red gold, this stunning watch exudes opulence without being gaudy. The silver-toned dial features stick and dot indexes paired with arrow-shaped hands, providing excellent legibility and making it an ideal companion for both casual and formal occasions. At the heart of this timepiece is the in-house Omega caliber 8500, a marvel of engineering known for its reliability and precision. With a power reserve of 60 hours, you don't have to worry about winding it every day. The Co-Axial escapement improves accuracy and reduces friction between parts, making it a true chronometer. This watch is perfect for professionals who need a timepiece that transitions seamlessly from the office to a dinner date, as well as collectors who appreciate Omega's rich history and innovation.

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Key Features

Omega caliber 8500 movement
Stainless Steel / Red Gold case material
Sapphire crystal glass
150 meters water resistance
38.5 mm diameter
Co-Axial escapement for improved accuracy
60 hour power reserve

Specifications

Brand

Omega

Family

Aqua Terra

Model

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

Reference

231.23.39.21.02.001

Movement

8500

Movement Features

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

Case

38.5mm

Dial Color

Silver

Crystal

Sapphire

Water Resistance

150

Current Listings

Omega Seamaster Aqua Terra "Skyfall" 38.5mm Co-Axial ref. 231.10.39.21.03.001

Omega - 231.10.39.21.03.001 · $3,550

This listing is for an Omega Seamaster Aqua Terra 'Skyfall' Co-Axial reference 231.10.39.21.03.001, a 38.5mm watch with a unique design.

Case size: 38.5mm
Shipping location: NJ USA

Posted at

Jan 21, 2026, 7:22 PM

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Omega Seamaster Aqua Terra 231.10.39.60.02.001 38mm Stainless Steel In Original Box $1500

Omega - 231.10.39.60.02.001 · $1,500

A stainless steel Omega Seamaster Aqua Terra in original box, featuring a 38mm case width and quartz movement.

Condition: Preowned with some wear, scratches and marks
Case Width: 38.5mm (without crown)
Band Type: Stainless steel
Band Condition: Preowned

Posted at

Jan 21, 2026, 6:08 PM

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Omega Seamaster Aqua Terra 150m Blue 220.10.41.21.03.002

Omega - 220.10.41.21.03.002 · $3,999

This Omega Seamaster Aqua Terra is a blue watch with a 150m water resistance rating.

Bracelet length: 7.25 inches

Posted at

Jan 19, 2026, 7:29 PM

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Omega Seamaster Aqua Terra - 38.5mm - 231.10.39.60.02.001 - Clean!

Omega - 231.10.39.60.02.001 · $1,895

This Omega Seamaster Aqua Terra features a 38.5mm case with a Caliber 4564 quartz movement, making it an easy watch to wear and maintain.

Case size: 38.5mm
Bracelet type: original
Wrist fit: up to 6.75 inch

Posted at

Jan 19, 2026, 3:00 PM

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Omega Seamaster Aqua Terra Blue Dial Auto - 36mm - 2504.80 - Clean!

Omega - 2504.80 · $2,650

This Omega Seamaster Aqua Terra features a 36.2mm case with a navy blue sunburst dial and Co-Axial automatic movement.

Condition: Excellent overall condition with minimal wear
Case size: 36.2mm
Movement type: Co-Axial automatic
Crystal type: domed sapphire with anti-reflective coating

Posted at

Jan 19, 2026, 2:03 PM

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Omega Seamaster Aqua Terra “Skyfall” Black Teak 38.5mm|Ref. 231.10.39.21.01.001 | Discontinued | Full Set | Mint Condition

Omega - 231.10.39.21.01.001 · $4,250

This Omega Aqua Terra “Skyfall” features a discontinued black “teak-concept” dial, in-house Co-Axial Calibre 8500 movement with 60-hour power reserve and anti-magnetic performance up to 15,000 gauss. At 38.5mm, it strikes the perfect balance between refined, timeless design and wearability.

Condition: Mint Condition
Diameter: 38.5mm
Movement: Co-Axial Calibre 8500
Bracelet size: up to an 18cm wrist

Posted at

Jan 19, 2026, 1:50 PM

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Omega Aqua Terra Small Seconds

Omega - Small Seconds

The watch is an Omega Aqua Terra with a small seconds feature.

Posted at

Jan 19, 2026, 1:37 PM

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Omega Seamaster Aqua Terra 38mm Black/Steel | 220.12.38.20.01.001 | No Box or Papers | Extra Alligator Leather Strap | Good Condition | Priced to Sell

Omega - 220.12.38.20.01.001 · $3,750

The Omega Seamaster Aqua Terra is a tribute to OMEGA’s rich maritime heritage, featuring a stainless steel case and a black dial with a horizontal ‘teak’ pattern.

Condition: Good condition, has a few scratches
Case diameter: 38mm
Water resistance: 150m
Power reserve: 55 hours

Posted at

Jan 19, 2026, 11:38 AM

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Omega Speedmaster Aqua Terra 38mm Full Set

Omega - Aqua Terra 38mm · $4,250

Beautiful Omega Aqua Terra 38mm up for sale. It has a protective film on the case and bracelet, adding scratch protection.

Condition: Good pre-owned condition
Bracelet length: 6.75in
Strap material: rubber
Box contents: Inner and Outter Box, cards, tag, OEM bracelet, another set of WatchShell film and tweezers

Posted at

Jan 19, 2026, 10:52 AM

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