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

Reference 231.23.39.21.02.001

About this watch

The Omega Seamaster Aqua Terra 150M Master Co-Axial is a masterpiece of luxury watchmaking, combining elegance with functionality in a single timepiece. Crafted from a blend of stainless steel and red gold, this stunning watch exudes opulence without being gaudy. The silver-toned dial features stick and dot indexes paired with arrow-shaped hands, providing excellent legibility and making it an ideal companion for both casual and formal occasions. At the heart of this timepiece is the in-house Omega caliber 8500, a marvel of engineering known for its reliability and precision. With a power reserve of 60 hours, you don't have to worry about winding it every day. The Co-Axial escapement improves accuracy and reduces friction between parts, making it a true chronometer. This watch is perfect for professionals who need a timepiece that transitions seamlessly from the office to a dinner date, as well as collectors who appreciate Omega's rich history and innovation.
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Key Features

  • Omega caliber 8500 movement
  • Stainless Steel / Red Gold case material
  • Sapphire crystal glass
  • 150 meters water resistance
  • 38.5 mm diameter
  • Co-Axial escapement for improved accuracy
  • 60 hour power reserve

Specifications

Brand
Omega
Family
Aqua Terra
Model
Seamaster Aqua Terra 150M Master Co-Axial 38.5 Stainless Steel / Red Gold / Silver
Reference
231.23.39.21.02.001
Movement
8500
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
38.5mm
Dial Color
Silver
Crystal
Sapphire
Water Resistance
150

Current Listings

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

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. Part of the 'Summer Blue' collection, it features a 43mm stainless steel case and a dial that captures the essence of a perfect day at sea.

  • Condition: VERY GOOD - Some light scratches on case and bracelet.
  • Case Size: 43mm
  • Bracelet Size: 7"
  • Box Papers: Yes
Posted at
Mar 13, 2026, 8:21 PM
Active
[WTS] OMEGA Seamaster Aqua Terra 150M Terracotta Ref. 220.10.38.20.13.003 - ULTIMATE SET! 🔥$6,100🔥

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, Terracotta dial with rhodium-plated hands and indexes filled with white Super-LumiNova, and is powered by the Co-Axial Master Chronometer Calibre 8800.

  • Condition: UNWORN
  • Case size: 38mm
  • Bracelet links: pre-sized for a ~7" wrist
  • Contents: ULTIMATE SET, including box, papers, serial hang tag, spare links, shipping coffin, and digital copy of original purchase receipt
Posted at
Mar 13, 2026, 8:19 PM
Active
[WTS] Omega Seamaster Aqua Terra Annual Calendar 231.10.39.22.03.001 Full Set - priced to fly

Omega Seamaster Aqua Terra Annual Calendar 231.10.39.22.03.001 Full Set - priced to fly

Omega - 231.10.39.22.03.001 · $4,250
This Omega Seamaster Aqua Terra features an Annual Calendar and Blue Dial, housed in a 38.5mm case.

  • Condition: excellent
  • Case size: 38.5mm
Posted at
Mar 13, 2026, 7:03 PM
Active
[WTS] Omega Seamaster Aqua Terra Chronograph GMT – Ref 231.10.43.52.06.001

Omega Seamaster Aqua Terra Chronograph GMT – Ref 231.10.43.52.06.001

Omega - 231.10.43.52.06.001 · $4,195
This Omega Seamaster Aqua Terra Chronograph GMT is a clean and well-maintained example of the watch, with a full chronograph and GMT complication making it one of the more mechanically interesting configurations in the Aqua Terra line.

  • Condition: Very good
  • Complications: chronograph and GMT
  • Bracelet condition: well preserved
Posted at
Mar 13, 2026, 10:43 AM
Active
[WTS] Omega Aqua Terra 231.10.39 Cal 8500 39mm Grey Teak Dial- $2,590

Omega Aqua Terra 231.10.39 Cal 8500 39mm Grey Teak Dial- $2,590

Omega - 231.10.39 Cal 8500 · $2,590
This Omega Aqua Terra 231.10.39 Cal 8500 is a great condition watch with a 39mm steel case and original Omega steel bracelet, powered by the Calibre OMEGA 8500 movement.

  • Condition: Great condition with minimal marks on the case and bracelet
  • Case size: 39mm diameter
  • Movement: Calibre OMEGA 8500
  • Bracelet material: Steel
Posted at
Mar 12, 2026, 8:59 PM
Active
[WTS] Omega Seamaster Aqua Terra – James Bond SkyFall – 38.5mm – Box & Papers Set

Omega Seamaster Aqua Terra – James Bond SkyFall – 38.5mm – Box & Papers Set

Omega - 231.10.39.21.03.001 · $4,850
This Omega Seamaster Aqua Terra 150M 'SKYFALL' features a 38.5mm stainless steel case, blue teak pattern dial, and an Omega Co-Axial 8500 calibre automatic movement with Si14 hairspring.

  • Case size: 38.5mm
  • Material: stainless steel
  • Bracelet material: stainless steel
Posted at
Mar 12, 2026, 4:24 PM
Active
[WTS] Omega Seamaster Aqua Terra Annual Calender 43mm

Omega Seamaster Aqua Terra Annual Calender 43mm

Omega - 231.10.43.52.001 · $10,500
  • Size: 43mm diameter
  • Water Resistance: 30m water resistance
Posted at
Mar 12, 2026, 1:36 PM
Active
[WTS] 2026 Omega Seamaster Aqua Terra BRAND NEW

2026 Omega Seamaster Aqua Terra BRAND NEW

Omega - Seamaster Aqua Terra · $6,399
A timeless and elegant luxury timepiece that would make a great addition to any collection or the perfect watch to start one.

  • Year of purchase: 2026
  • Purchase date: 02/13/2026
Posted at
Mar 11, 2026, 11:24 PM
Active