Omega Aqua Terra Seamaster Aqua Terra 150M Co-Axial 38.5 Red Gold / Diamond / Black / Bracelet

Reference 231.55.39.21.51.001

Omega Seamaster Aqua Terra 150M Co-Axial 38.5 Red Gold / Diamond / Black / Bracelet

About this watch

The Omega Seamaster Aqua Terra 231.55.39.21.51.001 is a masterpiece of luxury watchmaking, boasting a gleaming red gold case and stunning black dial adorned with diamonds. The 38.5mm round case is meticulously crafted to offer a sophisticated look suitable for both casual and formal occasions. Sapphire glass provides unparalleled durability and scratch resistance, ensuring your timepiece remains pristine even with daily wear. This robust chronometer features the Omega caliber 8501 movement, celebrated for its reliability and accuracy, with a power reserve of up to 60 hours and Co-Axial escapement technology reducing friction between parts. With water resistance of 150 meters, this watch is ready for any adventure or formal event, delivering unparalleled luxury and functionality in one sleek package.

Buy Now on Jomashop

This is an affiliate link

Key Features

Omega caliber 8501 movement
Red gold case with gem-set bezel
Sapphire glass for durability
Chronometer certification
Water resistance up to 150 meters

Specifications

Brand

Omega

Family

Aqua Terra

Model

Seamaster Aqua Terra 150M Co-Axial 38.5 Red Gold / Diamond / Black / Bracelet

Reference

231.55.39.21.51.001

Movement

8501

Movement Features

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

Case

Red Gold 38.5mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

150

Current Listings

Omega Seamaster Aqua Terra 231.10.42.21.02.001 - White Teak Automatic

Omega - 231.10.42.21.02.001 · $2,895

This Omega Seamaster Aqua Terra is a watch-only example in very clean pre-owned condition, with everything functioning well.

Condition: Very clean pre-owned condition with light wear throughout
Size: 41.5mm diameter
Dial condition: small mark on the dial (in line with the 2 o’clock marker)

Posted at

Apr 15, 2026, 4:46 PM

Active

View listing on r/WatchExchange

2020 Omega Aqua Terra Captain’s Watch White/silver 6/20 Ref# 231.10.42.21.02.002 $3,599.00

Omega - 231.10.42.21.02.002 · $3,599

A 2020 Omega Aqua Terra Captain's Watch in white and silver, featuring an automatic self-winding movement, 41.5mm case, and 150M water resistance.

Condition: fantastic condition with a few minor flaws on the case and box
Diameter: 41.5mm
Water Resistance: 150m
Movement: 8500 Caliber automatic self-winding movement

Posted at

Apr 15, 2026, 12:12 PM

Active

View listing on r/WatchExchange

Omega Aqua Terra 41mm Black Lacquer Dial, $5200

Omega - 220.10.41.21.01.002 · $5,200

A Omega Aqua Terra with a black lacquer dial, available for sale.

Condition: Preowned
Shipping: $100 (USA)
Payment Methods: Wire,Credit Card
Warranty: 2025

Posted at

Apr 15, 2026, 10:30 AM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra 231.10.39.21.01.001 Black Teak 38.5mm - $3,250

Omega - 231.10.39.21.01.001 · $3,250

Up for sale is my great condition Omega Seamaster Aqua Terra 231.10.39.21.01.001.

Condition: Very good condition for its age, minimal marks/hairlines on case, caseback, and bracelet
Movement: Automatic Omega Calibre 8500
Case size: 38.5mm
Bracelet material: Steel

Posted at

Apr 15, 2026, 4:35 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

Up for sale is my Omega Aqua Terra 231.10.39 Cal 8500. This watch measures at 39mm and has an OMEGA 8500 movement.

Condition: great condition, minimal marks on the case and bezel
Case size: 39mm
Movement: Calibre OMEGA 8500
Bracelet material: steel

Posted at

Apr 15, 2026, 4:33 AM

Active

View listing on r/WatchExchange

Omega Aqua Terra 2503.30 39mm Champagne Dial Box and Papers - $2,350

Omega - 2503.30 · $2,350

Up for sale is my great condition Omega Seamaster 2503.30, measuring at 39mm with an automatic Omega Calibre 2500 movement.

Condition: Very good condition for its age with minimal marks/hairlines on the case, caseback, and bracelet
Diameter: 39mm
Movement: Omega Calibre 2500

Posted at

Apr 15, 2026, 4:25 AM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra 150m Master Co-Axial Golf Edition (2020) Complete Kit With Extra Straps 220.12.41.21.01.002

Omega - 220.12.41.21.01.002 · $4,500

A fantastic, versatile watch with a sporty edge in the Omega Seamaster Aqua Terra Golf Edition.

Condition: Used, excellent condition
Case size: 41mm diameter
Water resistance: 150m depth rating
Movement: Omega Co-Axial Master Chronometer

Posted at

Apr 12, 2026, 2:19 AM

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

A 2023 Omega Seamaster Aqua Terra Skyfall Blue, a luxury watch featuring a 41.5mm case size.

Condition: Excellent condition with minimal signs of wear
Year: 2023
Size: 41.5mm diameter
Contents: Watch,Inner & Outer Box,Card Holder,International Warranty Card,Pictograms Card,Instructions Manual,Hang Tag

Posted at

Apr 11, 2026, 1:17 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra 36mm Ref. 2504.50 | Great Condition | Inky Black Sunray Dial | Co-Axial Caliber 2500 | All Original | $2450 (SERVICED)

Omega - 2504.50 · $2,450

A modern classic with the soul of a Seamaster, this Omega Aqua Terra Ref. 2504.50 features a 36mm stainless steel case, inky black sunray dial, and Co-Axial Caliber 2500 movement.

Condition: Great Condition
Movement: Serviced Automatic Caliber 2500 (Co-Axial Chronometer)
Dial: Pristine Deep Black Sunray dial with applied indices
Case: Sharp Stainless Steel construction with original factory geometry, Diameter: 36.2 mm (excluding crown), Thickness: 11 mm, Lug-to-lug: 44 mm

Posted at

Apr 11, 2026, 10:47 AM

Active

View listing on r/WatchExchange