Omega Aqua Terra Seamaster Aqua Terra 150M Co-Axial 38.5 Stainless Steel / Diamond / Black

Reference 231.18.39.21.51.001

Omega Seamaster Aqua Terra 150M Co-Axial 38.5 Stainless Steel / Diamond / Black

About this watch

The Omega Seamaster Aqua Terra is a masterpiece of horological innovation, seamlessly blending elegance with performance. This stunning timepiece boasts an automatic Omega caliber 8500 movement, providing 60 hours of power reserve and a Master Co-Axial Chronometer designation for exceptional precision and performance. The case is crafted from high-quality stainless steel, resistant to corrosion and wear, while the diamond-set bezel adds a touch of luxury without being overly ostentatious. With its impressive water resistance of 150 meters, this watch is versatile enough for swimming, snorkeling, and everyday wear. Whether you're looking for a professional or laid-back vibe, the Aqua Terra's design allows it to transition seamlessly between different settings, making it the perfect addition to any luxury watch collection.

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Key Features

Omega caliber 8500 automatic movement
60 hours of power reserve
Master Co-Axial Chronometer designation
Stainless steel case with diamond-set bezel
150 meters water resistance
Sapphire crystal glass for scratch resistance and clarity
Black dial with stick and dot indexes

Specifications

Brand

Omega

Family

Aqua Terra

Model

Seamaster Aqua Terra 150M Co-Axial 38.5 Stainless Steel / Diamond / Black

Reference

231.18.39.21.51.001

Movement

8500

Movement Features

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

Case

Stainless Steel 38.5mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

150

Current Listings

Omega Seamaster Aqua Terra Worldtimer “Summer Blue”

Omega - 220.10.43.22.03.002 · $8,750

The Omega Aqua Terra Worldtimer 'Summer Blue' features a light blue dial and is one of the world's premier timepieces for travelers, offering a unique combination of style and functionality.

Condition: Excellent condition
Dial color: light blue
Water resistance: unknown
Movement: Worldtimer

Posted at

Jan 18, 2026, 10:45 AM

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Omega Aqua Terra 2504.50 // 36mm // 150m WR // 2025 Full Service

Omega - 2504.50 · $2,725

The Omega Aqua Terra is a modern classic with a black dial and co-axial movement, suitable for various activities.

Condition: Great, light hairlines throughout but no major blemishes to note
Case material: stainless steel
Case diameter: 36.2mm
Lug-to-lug: 44mm

Posted at

Jan 17, 2026, 8:12 PM

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Omega Seamaster Aqua Terra 150m | Calibre 8500 Co-Axial | 231.10.39.21.06.001

Omega - 231.10.39.21.06.001 · $2,799

This listing is for an Omega Seamaster Aqua Terra 150m with Calibre 8500 Co-Axial movement, featuring a 38.5mm case size and a 7.25-inch long bracelet.

Depth rating: 150m
Bracelet length: 7.25 inches

Posted at

Jan 17, 2026, 5:59 PM

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Omega Seamaster Aqua Terra 150m | Quartz | 231.10.39.60.06.001

Omega - 231.10.39.60.06.001 · $2,250

Omega Seamaster Aqua Terra 150m, a 38.5mm quartz watch with a 7.25 inch bracelet.

Water resistance: 150m
Movement type: Quartz

Posted at

Jan 17, 2026, 5:54 PM

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Omega Seamaster Aqua Terra Reference 2503.80.00 Box & Papers

Omega - 2503.80.00 · $3,800

A 2006 Omega Seamaster Aqua Terra in good preowned condition, functions as it should and keeps excellent time at around +1 sec/day.

Condition: 8/10 - good preowned condition with signs of normal use
Case diameter: 39.2mm
Movement: Omega 2500 (Chronometer)
Water resistance: 150m

Posted at

Jan 17, 2026, 5:14 PM

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Omega Seamaster Aqua Terra Silver Dial - 2504.30 - 36mm- $2,395 Shipped

Omega - 2504.30 · $2,395

The Omega Seamaster Aqua Terra features a beautiful sunburst, silver dial and compact 36mm case diameter. It's a perfect all-rounder with lovely proportions.

Condition: very good condition with minimal wear
Case Diameter: 36mm
Movement: Omega Co-axial 2500

Posted at

Jan 17, 2026, 4:40 PM

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2025 OMEGA Seamster Aqua Terra 41mm 150M – Green Teak Wood Dial - Full Set

OMEGA - 220.10.41.21.10.001 · $4,999

A 2025 OMEGA Seamaster Aqua Terra 41mm watch features a green teak wood dial and is fully set, including an international warranty.

Condition: Excellent with minor wear
Case Size: 41mm diameter
Lug To Lug: 47.9mm
Thickness: 13.2mm

Posted at

Jan 17, 2026, 3:41 PM

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Omega Seamaster Aqua Terra 150M 38.5mm Blue “Teak” Dial - James Bond Spectre| Ref.231.10.39.21.03.002 | Full Set | Mint Condition

Omega - 231.10.39.21.03.002 · $4,390

The Omega Seamaster Aqua Terra 150M reference 231.10.39.21.03.002 is a sporty and refined watch that sits ideally between versatility and wrist presence, measuring 38.5 mm in size.

Condition: Mint Condition
Case size: 38.5mm
Depth rating: 150m
Movement: Omega Co-Axial calibre 8500 with 60-hour power reserve

Posted at

Jan 17, 2026, 12:36 PM

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