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 Seamater Aqua Terra 38mm

Omega - Aqua Terra 38mm · $4,250

The Omega Seamaster Aqua Terra 38mm is a beautiful watch in good condition, featuring the Aqua Terra 38mm Watch Protection Film on the case and half of its metal bracelet for added scratch protection.

Condition: good pre-owned condition
Bracelet: metal
Strap: 6.75in blue rubber strap from StrapsCo
Box: Inner and Outer Box included

Posted at

Jan 11, 2026, 3:35 PM

Active

View listing on r/WatchExchange

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

Aqua Terra Grey watch in excellent condition, reference 220.10.41.21.06.001, from 2023.

Condition: Excellent condition with minimal signs of wear
Year: 2023
Case size: 41mm
Contents: Watch (full links),Inner & Outer Box,Card Holder,International Warranty Card,Master Chronometer Card,Pictograms Card

Posted at

Jan 11, 2026, 1:33 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra 150M – Ref. 231.10.42.21.01.003 – 41.5mm – Box & Watch – $2999 Shipped

Omega - 231.10.42.21.01.003 · $2,999

The Omega Seamaster Aqua Terra 150M is a versatile everyday watch featuring a 41.5mm stainless steel case, black dial with teak-style vertical pattern, and date at 3 o'clock, powered by Omega's Master Co-Axial chronometer movement.

Condition: Good overall with light wear
Case size: 41.5mm diameter
Bracelet length adjustment: 7.4-inch wrist

Posted at

Jan 10, 2026, 9:24 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra – Discontinued Black “Teak” Dial| 42mm Master Co- Axial | Reference: 231.10.42.21.01.003| Full Set

Omega - 231.10.42.21.01.003 · $4,250

A discontinued, classically styled Aqua Terra with the desirable black teak dial, powered by Omega’s robust Master Co-Axial technology. A versatile luxury sports watch equally at home with a suit or casual wear, and an excellent example of Omega’s technical evolution prior to the Master Chronometer era.

Condition: Very good overall condition
Diameter: 41.5mm
Water resistance: 150m / 500ft
Movement type: Master Co-Axial automatic movement

Posted at

Jan 10, 2026, 8:07 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra 150M “Spectre” Blue Dial – 41.5mm|Ref: 231.10.42.21.03.003| Full Set | Mint Condition

Omega - 231.10.42.21.03.003 · $3,990

This highly sought-after Aqua Terra 'Spectre' configuration features a blue teak dial and in-house Calibre 8500, delivering reliable Co-Axial performance and strong wrist presence.

Condition: Excellent condition throughout
Case size: 41.5mm
Depth rating: 150m

Posted at

Jan 10, 2026, 6:02 PM

Active

View listing on r/WatchExchange