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.

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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 Worldtimer – Blue Strap – Ref. 220.10.43.22.03.001 – Unworn 2025

Omega - 220.10.43.22.03.001 · $7,980

This Omega Seamaster Aqua Terra Worldtimer features a striking blue dial and matching blue strap, showcasing one of Omega's most impressive complications. The watch boasts a 43mm stainless steel case, laser-ablated world map center, and global city ring on the ceramic bezel.

Condition: New / Unworn
Case size: 43mm diameter
Water resistance: 150m depth rating
Power reserve: 60 hours

Posted at

Apr 9, 2026, 11:04 PM

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Omega Seamaster Aqua Terra – Annual Calendar – 38.5mm Blue Dial

Omega - 23110392203001 · $4,200

The Omega Seamaster Aqua Terra features a 38.5mm stainless steel case on a stainless steel bracelet with a deployant clasp, and it's equipped with the Omega Co-Axial calibre 8601. What sets this watch apart is its annual calendar complication, which automatically accounts for months with 30 or 31 days and only needs adjustment once per year.

Condition: Excellent
Case size: 38.5mm diameter
Case material: stainless steel
Bracelet material: stainless steel

Posted at

Apr 9, 2026, 5:18 PM

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Omega Aqua Terra 8900 41mm Turquoise / Black Ceramic 220.32.41.21.03.001 ( new / 2026 / box and papers )

Omega - 220.32.41.21.03.001 · $6,995

This Omega Aqua Terra 8900 features a 41mm stainless steel and black ceramic case with a turquoise dial, showcasing the brand's Master Chronometer movement.

Condition: Brand new
Movement: Master Chronometer Movement
Case material: Stainless Steel / Black Ceramic
Size: 41mm diameter

Posted at

Apr 9, 2026, 2:08 PM

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BNIB Omega Seamaster Aqua Terra Black Lacquer 41mm Full Kit - REF# 220.10.41.21.01.0 $6,449 + label

Omega - 220.10.41.21.01.0 · $6,449

This Omega Seamaster Aqua Terra features a black lacquer dial and is powered by OMEGA's Co-Axial Master Chronometer calibre 8900, certified at the industry's highest standard.

Condition: Brand new, fully stickered, unworn
Calibre: Co-Axial Master Chronometer 8900
Case Material: Black Lacquer Dial (Blackquaterra)

Posted at

Apr 9, 2026, 11:45 AM

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Omega Seamaster Aqua Terra 41mm

Omega - 220.10.41.21.03.001 · $3,900

A 41mm Aqua Terra in teakwood blue with a stainless steel bracelet and OEM blue rubber strap, serviced within the last 2 months.

Condition: Excellent, recently serviced
Case size: 41mm
Bracelet/strap type: blue rubber strap, OEM
Band closure: deployant clasp

Posted at

Apr 9, 2026, 10:23 AM

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2023 OMEGA Aqua Terra Worldtimer GMT Titanium - 220.92.43.22.99.001 - Full Set Extra OEM NATO Mint

OMEGA - 220.92.43.22.99.001 · $9,250

The Aqua Terra Worldtimer is a grade 2 titanium timepiece with a matte finish, black ceramic bezel, and laser etched dial featuring continents and indices. It's mounted on a black rubber integrated strap.

Condition: Very excellent pre-owned condition
Case size: 43mm diameter
Water resistance: 150m depth rating
Movement: Co-Axial Master Chronometer Calibre 8938 (METAS certified)

Posted at

Apr 8, 2026, 7:32 PM

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Omega Seamaster Aqua Terra Worldtimer “Summer Blue”

Omega - 220.10.43.22.03.002 · $7,999

This Omega Seamaster Aqua Terra Worldtimer features a stunning 'Summer Blue' dial with laser-ablated continents, showcasing one of the most visually impressive modern Omega pieces.

Condition: Brand new old stock and unworn
Case size: 43mm
Material: stainless steel
Movement: Omega Co-Axial Master Chronometer Caliber 8938

Posted at

Apr 8, 2026, 6:39 PM

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Omega - 2502.34.00 Seamaster Aqua Terra 150M Co-Axial 42.2 Stainless Steel

Omega - 2502.34.00 · $4,500

The Omega Seamaster Aqua Terra 150M Co-Axial features a 42.2mm stainless steel case and pristine white dial, exemplifying Omega's commitment to robust performance and elegant design.

Condition: Very good
Case size: 41MM diameter
Bezel material: Stainless
Movement type: Omega caliber 2500 Co-Axial Escapement Chronometer

Posted at

Apr 8, 2026, 5:56 PM

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