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

Reference 231.23.39.21.51.001

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

About this watch

The Omega Seamaster Aqua Terra 150M Co-Axial 38.5 is a masterful blend of style and functionality. This luxurious timepiece boasts a stunning combination of red gold and stainless steel, giving it a sporty yet elegant appearance. The round case measures 38.50 mm in diameter, making it suitable for both men and women. The black dial features gem-set indexes that catch the light beautifully, adding a touch of sophistication to the overall design. Arrow-shaped hands enhance visibility while also adding a modern twist to its classic face. With a water resistance of up to 150 meters, this watch is designed for function as well as form. But what truly sets it apart is the Omega caliber 8500 movement, a certified chronometer that offers an impressive 60 hours of power reserve. The Co-Axial escapement reduces friction, extending the longevity of the watch's performance. Whether you're in a business meeting or enjoying a casual day out, this watch adapts beautifully to any scenario. It's a conversation starter, and with its exquisite design, reliable movement, and versatility, it easily earns its place in the coveted collection of luxury timepieces.

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Key Features

Omega caliber 8500 movement
Certified chronometer
60 hours power reserve
Co-Axial escapement
Water resistance up to 150 meters
Red gold and stainless steel construction
Sapphire glass
38.50 mm diameter case

Specifications

Brand

Omega

Family

Aqua Terra

Model

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

Reference

231.23.39.21.51.001

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 38.5mm – “Grey Skyfall Teak Dial” Full Set - Mint Condition

Omega - 231.10.39.21.06.001 · $4,250

This Omega Seamaster Aqua Terra features a highly sought-after grey teak "Skyfall" dial, a colorway now discontinued and increasingly difficult to source in this condition. The proportions of the 38.5mm case make it one of the most versatile Aqua Terra sizes ever produced — comfortable, balanced, and perfect for daily wear.

Condition: Mint Condition
Size: 38.5mm
Case Proportion: versatile
Power Reserve: 60-hour

Posted at

Feb 28, 2026, 2:23 AM

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Omega Aqua Terra | 2503.33.00 | White Dial w/ Blue Indices | Serviced May 2023

Omega - 2503.33.00 · $2,700

A Omega Aqua Terra 39mm watch with a white dial and blue indices, serviced in May 2023.

Condition: Excellent with normal wear from use
Case Diameter: 39mm
Strap Type: rubber

Posted at

Feb 27, 2026, 4:27 PM

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Omega Seamaster Aqua Terra Annual Calendar 231.10.39.22.03.001 Full Set

Omega - 231.10.39.22.03.001 · $4,450

38.5mm Omega Seamaster Aqua Terra Annual Calendar with a blue dial.

Material: Full Set

Posted at

Feb 27, 2026, 1:37 AM

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Omega Seamaster Aqua Terra 150m | Master Co-Axial | 41.5mm | 231.10.42.21.03.003 Blue

Omega - 231.10.42.21.03.003 · $3,499

This Omega Seamaster Aqua Terra Master Co-Axial features a blue dial and a 41.5mm case size, paired with a 7.25-inch bracelet.

Diameter: 41.5mm
Bracelet length: 7.25 inches

Posted at

Feb 26, 2026, 10:34 PM

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OMEGA Seamaster Aqua Terra Worldtimer "Summer Blue" Ref. 220.10.43.22.03.002 - ULTIMATE SET! 🔥$9,600🔥

OMEGA - 220.10.43.22.03.002 · $9,600

The OMEGA Seamaster Aqua Terra Worldtimer Ref. 220.10.43.22.03.002 is a sophisticated travel companion that puts the world on your wrist. It features a 43mm stainless steel case, laser-ablated dial with Earth texture, and a 24-hour glass ring indicating day and night.

Condition: [VERY GOOD] Some light scratches on case and bracelet.
Case size: 43mm diameter
Bracelet length: ~7"
Contents: [ULTIMATE SET] Includes box, papers, serial hang tag, spare links, shipping coffin, and digital copy of original purchase receipt

Posted at

Feb 26, 2026, 9:14 PM

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OMEGA Seamaster Aqua Terra 150M Terracotta Ref. 220.10.38.20.13.003 - ULTIMATE SET! 🔥$6,100🔥

OMEGA - 220.10.38.20.13.003 · $6,100

The OMEGA Seamaster Aqua Terra Ref. 220.10.38.20.13.003 features a 38mm stainless steel case with a symmetrical design, a Terracotta dial made from brass, and a polished and brushed bracelet with rounded links.

Condition: [UNWORN]
Dial color: Terracotta
Bracelet size: ~7" pre-sized

Posted at

Feb 26, 2026, 9:10 PM

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Omega Seamaster Aqua Terra 150m Blue 220.10.41.21.03.002

Omega - 220.10.41.21.03.002 · $3,850

Aqua Terra 150m Blue, a watch designed for both style and functionality.

Bracelet length: 7.25 inches

Posted at

Feb 26, 2026, 8:18 PM

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

Omega - 23110392203001 · $4,400

A versatile Omega Seamaster Aqua Terra Annual Calendar watch in blue dial with a 38.5mm stainless steel case, featuring an annual calendar complication and the Omega Co-Axial calibre 8601.

Condition: Excellent
Case size: 38.5mm diameter
Bracelet type: stainless steel bracelet
Clasp type: deployant clasp

Posted at

Feb 26, 2026, 11:31 AM

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Omega Seamaster Aqua Terra Worldtimer Ref: 220.10.43.22.03.001 - Full set

Omega - 220.10.43.22.03.001 · $6,998

This Omega Seamaster Aqua Terra Worldtimer features a laser-engraved map of the world at the center of the dial, allowing you to keep track of timezones across the globe.

Condition: Excellent pre-owned condition
Bezel damage: small fleabite at 6:00
Bracelet condition: super clean

Posted at

Feb 25, 2026, 6:18 PM

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