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

Reference 231.20.39.21.51.003

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

About this watch

The Omega Aqua Terra 231.20.39.21.51.003 is a masterpiece of engineering and design, combining elegance with functionality. Crafted from a harmonious blend of stainless steel and red gold, this watch exudes luxury and durability. The black dial, complemented by gem-set indexes, adds a touch of sophistication that's hard to ignore. The round case, with a diameter of 38.5mm, strikes an ideal balance between boldness and wearability. At the core lies the Omega caliber 8500 movement, renowned for its precision and reliability, featuring 39 jewels and a frequency of 25,200 vibrations per hour. This automatic movement boasts an impressive 60-hour power reserve, ensuring it keeps perfect time even when taken off for days. With a water resistance of up to 150 meters, this watch is suitable for swimming and snorkeling. As a 'Master Co-Axial Chronometer', it has passed stringent tests ensuring its accuracy. The date function included ensures you always know what day it is, while the comfortable fit makes it perfect for all-day wear. Whether in formal or casual settings, the Aqua Terra's design speaks volumes and adapts to any outfit.

Buy Now on Jomashop

This is an affiliate link

MSRP: $9,550

Market Price: $3,884

Key Features

Omega caliber 8500 movement
60-hour power reserve
150m water resistance
Date function
Master Co-Axial Chronometer certification
Stainless steel and red gold construction
Black dial with gem-set indexes

Specifications

Brand

Omega

Family

Aqua Terra

Model

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

Reference

231.20.39.21.51.003

Movement

8500

Movement Features

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

Case

38.5mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

150

Current Listings

Omega Seamaster Aqua Terra 231.10.39.21.01.001 Black Teak 38.5mm - $2,990

Omega - 231.10.39.21.01.001 · $2,990

Up for sale is my great condition Omega Seamaster Aqua Terra 231.10.39.21.01.001 with an automatic Omega Calibre 8500 movement.

Condition: Very good condition for its age
Size: 38.5mm diameter
Movement: Omega Calibre 8500
Case Material: steel

Posted at

Apr 21, 2026, 4:56 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

This Omega Aqua Terra is a high-quality watch with a 39mm steel case, Calibre OMEGA 8500 movement, and features a steel bracelet and original presentation box.

Condition: great condition, minimal marks on case and crystal
Case Size: 39mm diameter
Bracelet Material: steel
Movement Calibre: Omega 8500

Posted at

Apr 21, 2026, 4:12 AM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra “Green/Teal” Dial - Full Set - Like New Condition. $5,101

Omega - 220.10.41.21.03.006 · $5,101

Up for sale is my Omega Seamaster Aqua Terra with the stunning green/teal sunburst dial, featuring a modern design with Co-Axial Master Chronometer movement and stainless steel bracelet.

Condition: Like New
Case Size: 41mm
Movement Type: Omega Co-Axial Master Chronometer (Cal. 8900 series)
Water Resistance: 150m depth rating

Posted at

Apr 20, 2026, 9:36 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra - 2503.30 - Clean!

Omega - 2503.30 · $2,395

This Omega Seamaster Aqua Terra comes in a 39mm size and features a silver dial and automatic movement. The watch is in fantastic condition with everything functioning as it should.

Condition: Pre-owned, light wear throughout
Size: 39mm diameter
Movement: Automatic

Posted at

Apr 20, 2026, 6:21 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra Blue Dial Full Set 2017 $3495 Shipped

Omega - 231.10.42.21.03.003 · $3,495

This Omega Seamaster Aqua Terra features a blue teak dial and is a clean, versatile piece that works well daily or dressed up.

Condition: Excellent
Case size: 41.5mm diameter
Movement: Master Co Axial Chronometer
Water resistance: 150m / 500ft depth rating

Posted at

Apr 20, 2026, 6:06 PM

Active

View listing on r/WatchExchange

Omega - 2502.34.00 Seamaster Aqua Terra

Omega - 2502.34.00

Posted at

Apr 20, 2026, 12:25 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra 15,000 Gauss 231.10.42.21.01.002 Full Set 2019

Omega - 231.10.42.21.01.002 · $5,900

The Omega Seamaster Aqua Terra >15,000 Gauss is a distinctive modern Aqua Terra reference known for its black textured dial and impressive anti-magnetic capability. It measures 41.5mm in stainless steel and features Omega's Co-Axial movement.

Condition: Excellent, with no visible scratches and excellent crystal condition
Case Material: Stainless Steel
Case Size: 41.5mm diameter
Movement: Co-Axial movement

Posted at

Apr 19, 2026, 6:08 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra – 'Blue Wave’ – Gold Accents – Complete Set

Omega - 23110422103006 · $5,250

The Omega Seamaster Aqua Terra 'Blue Wave' features a blue dial with wave pattern, 18K yellow gold hands and indexes. It has a stainless steel case with a 41.5mm diameter and is powered by the Master Co-Axial calibre 8500.

Condition: Excellent all-around condition
Case size: 41.5mm diameter
Movement: Omega Master Co-Axial calibre 8500
Water resistance: 150M / 15 bar

Posted at

Apr 19, 2026, 2:04 PM

Active

View listing on r/WatchExchange

2012 Omega Seamaster Aqua Terra 231.23.39.21.06.001

Omega - 231.23.39.21.06.001

2012 Omega Seamaster Aqua Terra for sale

Posted at

Apr 19, 2026, 11:54 AM

Active

View listing on r/WatchExchange