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 2023 41mm Grey 220.10.41.21.06.001 Full Set - $5,495

Omega - 220.10.41.21.06.001 · $5,495

A 2023 Omega Seamaster Aqua Terra Grey, with a 41mm case size, available in excellent condition.

Condition: Excellent condition with minimal signs of wear
Year: 2023
Size: 41mm diameter
Contents: full links, inner & outer box, card holder, international warranty card, master chronometer card, pictograms card

Posted at

Jan 19, 2026, 10:41 AM

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Omega Aqua Terra 38mm // METAS Chronometer // 150m WR // Full Kit

Omega - 220.10.38.20.01.001 · $4,099

This listing is for an Omega Aqua Terra ref. 220.10.38.20.01.001 from late 2023, featuring a stainless steel case with automatic movement.

Condition: Great, minor hairlines or two on the polished bezel and bracelet
Case diameter: 38mm
Lug-to-lug: 45mm
Lug width: 19mm

Posted at

Jan 18, 2026, 7:14 PM

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Omega Seamaster Aqua Terra - Black Wave - Red Gold Accents - 2025

Omega - 231.10.42.21.01.006 · $5,250

The Omega Seamaster Aqua Terra features a striking black wave dial with red gold accents, powered by the Master Co-Axial Calibre 8500.

Case size: 41.5mm
Water resistance depth rating: 150m / 15 bar

Posted at

Jan 18, 2026, 3:08 PM

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Omega Seamaster Aqua Terra Worldtimer “Summer Blue”

Omega - 220.10.43.22.03.002 · $8,750

The Omega Aqua Terra Worldtimer 'Summer Blue' features a light blue dial and is one of the world's premier timepieces for travelers, offering a unique combination of style and functionality.

Condition: Excellent condition
Dial color: light blue
Water resistance: unknown
Movement: Worldtimer

Posted at

Jan 18, 2026, 10:45 AM

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Omega Aqua Terra 2504.50 // 36mm // 150m WR // 2025 Full Service

Omega - 2504.50 · $2,725

The Omega Aqua Terra is a modern classic with a black dial and co-axial movement, suitable for various activities.

Condition: Great, light hairlines throughout but no major blemishes to note
Case material: stainless steel
Case diameter: 36.2mm
Lug-to-lug: 44mm

Posted at

Jan 17, 2026, 8:12 PM

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Omega Seamaster Aqua Terra 150m | Calibre 8500 Co-Axial | 231.10.39.21.06.001

Omega - 231.10.39.21.06.001 · $2,799

This listing is for an Omega Seamaster Aqua Terra 150m with Calibre 8500 Co-Axial movement, featuring a 38.5mm case size and a 7.25-inch long bracelet.

Depth rating: 150m
Bracelet length: 7.25 inches

Posted at

Jan 17, 2026, 5:59 PM

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Omega Seamaster Aqua Terra 150m | Quartz | 231.10.39.60.06.001

Omega - 231.10.39.60.06.001 · $2,250

Omega Seamaster Aqua Terra 150m, a 38.5mm quartz watch with a 7.25 inch bracelet.

Water resistance: 150m
Movement type: Quartz

Posted at

Jan 17, 2026, 5:54 PM

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Omega Seamaster Aqua Terra Reference 2503.80.00 Box & Papers

Omega - 2503.80.00 · $3,800

A 2006 Omega Seamaster Aqua Terra in good preowned condition, functions as it should and keeps excellent time at around +1 sec/day.

Condition: 8/10 - good preowned condition with signs of normal use
Case diameter: 39.2mm
Movement: Omega 2500 (Chronometer)
Water resistance: 150m

Posted at

Jan 17, 2026, 5:14 PM

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Omega Seamaster Aqua Terra Silver Dial - 2504.30 - 36mm- $2,395 Shipped

Omega - 2504.30 · $2,395

The Omega Seamaster Aqua Terra features a beautiful sunburst, silver dial and compact 36mm case diameter. It's a perfect all-rounder with lovely proportions.

Condition: very good condition with minimal wear
Case Diameter: 36mm
Movement: Omega Co-axial 2500

Posted at

Jan 17, 2026, 4:40 PM

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