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

Reference 231.23.39.21.02.001

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

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 38mm Green Dial 220.10.38.20.10.002 F/Set 2023

Omega SeaMaster Aqua Terra 38mm Green Dial 220.10.38.20.10.002 F/Set 2023

Omega - 220.10.38.20.10.002 · $4,999
The Omega Seamaster Aqua Terra is a beautiful watch in the perfect size, with a 38mm diameter.

  • Diameter: 38mm
  • Size: perfect
  • Boxes: outer and inner
Posted at
Mar 21, 2026, 1:03 AM
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[WTS] Omega Seamaster Aqua Terra 231.10.42.21.02.001

Omega Seamaster Aqua Terra 231.10.42.21.02.001

Omega - 231.10.42.21.02.001 · $2,995
This Omega Seamaster Aqua Terra is a watch-only example in very clean condition, featuring a white dial and 41.5mm case size.

  • Condition: Very clean pre-owned condition with light wear throughout
  • Model: Seamaster Aqua Terra
  • Diameter: 41.5mm
  • Movement Status: Functions well as it should
Posted at
Mar 20, 2026, 6:58 PM
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[WTS] OMEGA Seamaster Aqua Terra Teak Blue 231.13.42.21.03.001 2024 Full Set 42mm - $4100 plus shipping

OMEGA Seamaster Aqua Terra Teak Blue 231.13.42.21.03.001 2024 Full Set 42mm - $4100 plus shipping

Omega - 231.13.42.21.03.001 · $4,100
The Omega Seamaster Aqua Terra is a classic and versatile watch that effortlessly blends sport and dress, featuring a blue teak dial and powered by Omega's reliable Co-Axial automatic movement.

  • Condition: Excellent Pre-Owned
  • Case size: 42mm diameter
  • Case material: Stainless Steel
  • Dial color: Blue Teak
Posted at
Mar 20, 2026, 6:46 PM
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[WTS] OMEGA Seamaster Aqua Terra Worldtimer 150M 220.12.43.22.03.001 2024 Men’s 43mm Full Set - $6750 plus shipping

OMEGA Seamaster Aqua Terra Worldtimer 150M 220.12.43.22.03.001 2024 Men’s 43mm Full Set - $6750 plus shipping

OMEGA - 220.12.43.22.03.001 · $6,750
The Omega Seamaster Aqua Terra Worldtimer features a blue world map dial, one of Omega's best modern designs, on a 43mm steel case paired with a blue rubber strap. This watch is a full set with box and 2024 papers.

  • Condition: Excellent condition
  • Case size: 43mm diameter
  • Water resistance: 150m depth rating
Posted at
Mar 20, 2026, 6:39 PM
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[WTS] 2023 Omega Seamaster Aqua Terra 42mm Spectre 007 James Bond LE 231.10.42.21.03.004 Full Set

2023 Omega Seamaster Aqua Terra 42mm Spectre 007 James Bond LE 231.10.42.21.03.004 Full Set

Omega - 231.10.42.21.03.004 · $6,997
A limited-edition James Bond 'Spectre' model, created to celebrate the 2015 film, available as part of a full collector set.

  • Condition: Excellent
  • Year: 2023
  • Model name: Seamaster Aqua Terra Spectre
  • Size: 42mm
Posted at
Mar 20, 2026, 4:41 PM
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[WTS] Omega Seamaster Aqua Terra – Annual Calendar – 38.5mm Blue Dial

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

Omega - 23110392203001 · $4,200
A versatile Omega Seamaster Aqua Terra Annual Calendar watch with a 38.5mm stainless steel case and blue dial, featuring an annual calendar complication and Co-Axial calibre 8601.

  • Condition: Excellent
  • Case size: 38.5mm diameter
  • Movement: Omega Co-Axial calibre 8601
Posted at
Mar 20, 2026, 12:36 PM
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[WTS] Omega Seamaster Aqua Terra 150M Annual Calendar –Teak Dial – Discontinued|Ref: 231.13.39.22.01.001|Full Set – 2020 – Excellent Condition

Omega Seamaster Aqua Terra 150M Annual Calendar –Teak Dial – Discontinued|Ref: 231.13.39.22.01.001|Full Set – 2020 – Excellent Condition

Omega - 231.13.39.22.01.001 · $4,390
A discontinued Omega Seamaster Aqua Terra 150M featuring an annual calendar complication and black teak dial, housed in a 38.5mm stainless steel case.

  • Condition: Excellent
  • Case diameter: 38.5mm
  • Water resistance: 150m
  • Movement: Calibre 8601 automatic
Posted at
Mar 19, 2026, 11:01 PM
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[WTS] Omega Aqua Terra Shades - 38mm Sandstone - 220.10.38.20.09.001 - Price Reduced!

Omega Aqua Terra Shades - 38mm Sandstone - 220.10.38.20.09.001 - Price Reduced!

Omega - 220.10.38.20.09.001 · $3,850
This Omega Seamaster Aqua Terra Shades features a stunning dial and is running exceptionally well at +1 second/day.

  • Condition: lightly pre-owned with light, normal wear throughout
  • Size: 38mm diameter
  • Movement performance: +1 second/day, 300+ amplitude
Posted at
Mar 18, 2026, 5:26 PM
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[WTS] Omega 2504.50 36mm Black Dial Aqua Terra Watch Only $2,400

Omega 2504.50 36mm Black Dial Aqua Terra Watch Only $2,400

Omega - 2504.50 · $2,400
Selling my Omega Aqua Terra Watch Only, 36mm black dial.

  • Condition: pre-owned, polished
  • Case size: 36mm diameter
  • Bracelet length: 18cm
Posted at
Mar 18, 2026, 1:54 PM
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