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

Reference 231.23.39.21.06.001

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

About this watch

The Omega Seamaster Aqua Terra 150M Co-Axial 38.5 is a luxurious timepiece that embodies precision, craftsmanship, and style. This stunning watch boasts an exquisite combination of stainless steel and red gold construction, giving it a luxurious yet durable appeal. The 38.5mm round shape strikes a perfect balance between boldness and subtlety, making it suitable for both men and women. The grey dial is sophisticated and versatile, pairing beautifully with various outfits. The open case back allows you to admire the intricate Omega caliber 8500 movement, which features two barrels providing a robust 60-hour power reserve. This chronometer has undergone rigorous testing to ensure its accuracy, meeting the standards set by the Swiss Official Chronometer Testing Institute (COSC). With a water resistance of 150 meters and an easy-to-read date function, this watch is perfect for daily wear. Its classic design ensures it won't go out of style, making it a timeless addition to any collection. For watch collectors, the Omega Seamaster Aqua Terra 150M Co-Axial 38.5 is a must-have, combining innovative movement, luxury materials, and stunning aesthetic. This remarkable choice offers both functionality and style, standing out among its peers.

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Key Features

Omega Caliber 8500 Movement
60-Hour Power Reserve
150M Water Resistance
Grey Dial with Stick and Dot Indexes
Red Gold Accents on Stainless Steel Case
Open Case Back for Visible Movement
Chronometer Certified by COSC

Specifications

Brand

Omega

Family

Aqua Terra

Model

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

Reference

231.23.39.21.06.001

Movement

8500

Movement Features

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

Case

38.5mm

Dial Color

Grey

Crystal

Sapphire

Water Resistance

150

Current Listings

Omega Aqua Terra 8900 41mm Lacquer Black 220.10.41.21.01.002 ( new / 2026 / box and papers )

Omega - 220.10.41.21.01.002 · $6,250

This Omega Aqua Terra 8900 features a 41mm stainless steel case and Master Chronometer movement, along with a Lacquer Black dial.

Condition: New
Case Material: Stainless Steel
Movement: Master Chronometer Movement

Posted at

Apr 23, 2026, 2:05 PM

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Omega Aqua Terra 38.5mm | 231.10.39.21.02.001 | Complete Set

Omega - 231.10.39.21.02.001 · $3,650

This Omega Aqua Terra is a 2019 model, complete with a large wooden double box set and various documentation.

Condition: Very good with minor scratches
Case size: 38.5mm diameter
Year: 2019

Posted at

Apr 23, 2026, 10:05 AM

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Omega Aqua Terra Black Wave Dial

Omega - 231.10.42.01.006 · $4,500

I'm selling an Omega Aqua Terra Black Wave Dial, which I bought from Japan last year as NOS and have only worn it about 10 times.

Condition: Pre-owned, like new
Origin: Japan
Warranty: No warranty provided
Shipping: Ships from Canada

Posted at

Apr 23, 2026, 9:40 AM

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Omega aqua Terra 39 grey dial

Omega - 231.10.39.21.06.001

This Omega Seamaster Aqua Terra 38.5mm features a grey teak-pattern dial, powered by an in-house Co-Axial Caliber 8500 with ~60-hour power reserve.

Condition: Excellent pre-owned condition
Case size: 38.5mm
Movement: Automatic (Co-Axial Caliber 8500)
Power reserve: ~60 hours

Posted at

Apr 22, 2026, 10:58 PM

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Omega Seamaster Aqua Terra Grey Teak 231.10.39.21.06.001

Omega - 231.10.39.21.06.001 · $2,899

This Omega Seamaster Aqua Terra features a classic teak-pattern gray dial and is available in very good condition.

Condition: Very good overall condition with minimal signs of use.
Case Size: 38.5mm
Movement Type: Omega Co-Axial automatic movement
Bracelet Length: up to approximately a 6.75" wrist

Posted at

Apr 22, 2026, 8:20 PM

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(Omega) Seamaster Aqua Terra 2517.50 $2,100

Omega - 2517.50 · $2,100

This is the Omega Seamaster Aqua Terra, a 1st gen reference 2517.50 with a black dial and quartz variant in great external condition.

Condition: Great external condition, keeping great time and functioning as intended
Size: 39mm diameter
Movement: quartz

Posted at

Apr 22, 2026, 5:30 PM

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2020 Omega Aqua Terra Captain’s Watch White/silver 6/20 Ref# 231.10.42.21.02.002 $3,299.00

Omega - 231.10.42.21.02.002 · $3,299

A 2020 Omega Aqua Terra Captain's Watch in white/silver, featuring a silvery white dial with Teak pattern and automatic self-winding movement.

Condition: Fantastic condition, with minor hairlines on the polished bezel and links.
Case size: 41.5mm
Water resistance depth rating: 150m
Movement caliber: 8500 Caliber

Posted at

Apr 22, 2026, 12:33 PM

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Omega Seamaster Aqua Terra Black Teak (full set)

Omega - Aqua Terra · $3,800

This Omega Seamaster Aqua Terra is a black Teak variant that comes with a full set of accessories. It features an alligator leather deployant strap and has been worn daily since purchase.

Condition: Minor wear
Strap: black Northstar sailcloth with grey stitching, alligator leather deployant strap

Posted at

Apr 22, 2026, 9:26 AM

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Omega Seamaster Aqua Terra Railmaster 2504.52 — $6800— Catch & Release, Serviced by Omega, Full Set

Omega - 2504.52 · $6,800

This Omega Seamaster Aqua Terra Railmaster is a 36mm stainless steel watch featuring a black dial, automatic movement, and an Omega 1575 stainless steel bracelet.

Condition: Excellent, minimal wear
Case material: Stainless steel
Diameter: 36mm
Lug width: 19mm

Posted at

Apr 22, 2026, 12:40 AM

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