Omega Aqua Terra Seamaster Aqua Terra 150m Master Co-Axial 41.5 Stainless Steel / Red Gold / Silver / Bracelet

Reference 231.20.42.21.02.001

About this watch

The Omega Seamaster Aqua Terra 150m Master Co-Axial is a stunning timepiece that exudes sophistication and technical prowess. This luxury watch boasts exceptional craftsmanship, combining stainless steel and red gold for a striking appearance. The round case diameter of 41.5 mm strikes a perfect balance between making a statement and being unobtrusive. The open case back reveals the intricate Omega caliber 8500 movement, which features a Co-Axial escapement that reduces friction and enhances longevity. With a water resistance of 150 meters, this watch is perfect for those who enjoy water sports or want peace of mind in wet conditions. The silver dial with red gold accents creates a striking yet elegant look, making it suitable for both formal and casual occasions.
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MSRP: $12,000
Market Price: $5,761

Key Features

  • Omega caliber 8500 movement
  • Stainless steel and red gold case
  • Sapphire glass
  • 150 meters water resistance
  • 60-hour power reserve
  • Co-Axial escapement
  • Silver dial with red gold accents

Specifications

Brand
Omega
Family
Aqua Terra
Model
Seamaster Aqua Terra 150m Master Co-Axial 41.5 Stainless Steel / Red Gold / Silver / Bracelet
Reference
231.20.42.21.02.001
Movement
8500
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
41.5mm
Dial Color
Silver
Crystal
Sapphire
Water Resistance
150

Current Listings

[WTS] 2023 Omega Seamaster Aqua Terra 150M 41mm 220.12.41.21.03.002 - Full Set

2023 Omega Seamaster Aqua Terra 150M 41mm 220.12.41.21.03.002 - Full Set

2023 Omega Seamaster Aqua Terra 150M 41mm, a luxury watch with features and details as described in the listing.

  • Year: 2023
  • Movement: Co-Axial Master Chronometer
  • Water resistance: 150m
Posted at
Mar 27, 2026, 4:30 PM
Active
[WTS] Omega Aqua Terra 2517.30 COMPLETE SET

Omega Aqua Terra 2517.30 COMPLETE SET

Omega - 2517.30 · $2,450
For sale is an Omega Aqua Terra 39mm quartz watch, sold as a complete set including links and warranty card.

  • Condition: Pre-owned (serviced)
  • Case Size: 39mm
  • Movement Type: quartz
Posted at
Mar 27, 2026, 4:11 PM
Active
[WTS] Omega Seamaster Aqua Terra 38.5mm 231.23.39.21.06.001 – Gold Bezel – Full Set – $5199

Omega Seamaster Aqua Terra 38.5mm 231.23.39.21.06.001 – Gold Bezel – Full Set – $5199

a luxury watch from Omega's Seamaster Aqua Terra collection, featuring a gold bezel and measuring 38.5mm in diameter.

  • Size: 38.5mm diameter
Posted at
Mar 27, 2026, 10:27 AM
Active
[WTS] Omega Aqua Terra 231.10.39.21.01.001 Cal 8500 38.5mm Black Teak - $3,250

Omega Aqua Terra 231.10.39.21.01.001 Cal 8500 38.5mm Black Teak - $3,250

Up for sale is Omega Aqua Terra 231.10.39 Cal 8500 with a Calibre OMEGA 8500 movement and a steel case on original Omega steel bracelet.

  • Condition: Great condition, minor marks on case and bracelet
  • Movement: Calibre OMEGA 8500
  • Case size: 38.5mm diameter
  • Bracelet material: Steel
Posted at
Mar 26, 2026, 10:35 PM
Active
[WTS] Omega Seamaster Aqua Terra 231.10.39 38.5mm Quartz Grey Teak - $1,890

Omega Seamaster Aqua Terra 231.10.39 38.5mm Quartz Grey Teak - $1,890

Omega - 231.10.39 · $1,890
Up for sale is my Omega Seamaster Aqua Terra 231.10.39, measuring at 39mm with a Calibre OMEGA 4564 quartz movement.

  • Condition: great condition, minimal marks/hairlines on the case
  • Movement: Calibre OMEGA 4564 quartz
  • Case size: 39mm
  • Water resistance: 150m
Posted at
Mar 26, 2026, 9:36 PM
Active
[WTS] Omega Aqua Terra Shades Sandstone - 38mm - 220.10.38.20.09.001

Omega Aqua Terra Shades Sandstone - 38mm - 220.10.38.20.09.001

This Omega Seamaster Aqua Terra Shades features a stunning 'Sandstone' dial and is available in 38mm size. It's a watch-only example that's been lightly used.

  • Condition: lightly pre-owned with light, normal wear throughout and small mark on crystal near 3 o'clock
  • Case Size: 38mm diameter
  • Movement Amplification: 300+ amplitude
  • Accuracy: +1 second/day
Posted at
Mar 26, 2026, 6:35 PM
Active
[WTS] 36mm Omega Seamaster Aqua Terra Quartz - Ref 2518.50 - $1900 SHIPPED

36mm Omega Seamaster Aqua Terra Quartz - Ref 2518.50 - $1900 SHIPPED

Omega - 2518.50 · $1,900
A 36mm Omega Seamaster Aqua Terra Quartz watch, powered by a Calibre OMEGA 1538 quartz movement.

  • Condition: Excellent condition
  • Case Size: 36mm diameter
  • Bracelet Length: up to 7"
  • Movement Type: quartz
Posted at
Mar 26, 2026, 3:27 PM
Active
[WTS] 2024 Omega Seamaster Aqua Terra 150M 41mm Silver Dial 220.12.41.21.02.002 Full Set Excellent

2024 Omega Seamaster Aqua Terra 150M 41mm Silver Dial 220.12.41.21.02.002 Full Set Excellent

The Omega Seamaster Aqua Terra 150M is a versatile watch that combines everyday style with refined nautical design. Its 41mm stainless steel case features a silver "teak concept" dial, inspired by wooden yacht decks.

  • Condition: Excellent
  • Diameter: 41mm
  • Depth rating: 150m
Posted at
Mar 26, 2026, 12:31 PM
Active
[WTS] Omega Seamaster Aqua Terra 2503.33  - $2,450  - Reserved Post for u/Life_Minute_Second

Omega Seamaster Aqua Terra 2503.33 - $2,450 - Reserved Post for u/Life_Minute_Second

Omega - 2503.33 · $2,450
Up for sale is my Omega Seamaster Aqua Terra 2503.33, a 39mm watch with an Omega 2500 automatic movement.

  • Condition: Very good
  • Case material: Steel
  • Bracelet material: Original Omega Steel
  • Crystal type: Sapphire
Posted at
Mar 25, 2026, 4:23 AM
Active