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

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

Omega - 23110392203001 · $4,400
The Omega Seamaster Aqua Terra features a 38.5mm stainless steel case on a stainless steel bracelet, with an annual calendar complication that automatically accounts for months with 30 or 31 days.

  • Condition: Excellent condition
  • Case size: 38.5mm diameter
  • Movement: Omega Co-Axial calibre 8601
Posted at
Feb 13, 2026, 11:38 AM
Active
[WTS] 2023 Omega Aqua Terra - Weave Dial

2023 Omega Aqua Terra - Weave Dial

A 2023 Omega Aqua Terra watch featuring a black weave dial and rose gold colored hands/makers.

  • Condition: Very Good
  • Case size: 41.5mm diameter
  • Box condition: Outer Box / Inner Box / Warranty Card / Pictograms Card / Manual - Front flap loose / some wear marks
Posted at
Feb 12, 2026, 9:54 PM
Active
[WTS] Omega Seamaster Aqua Terra 38 Green 220.12.38.20.10.001 MINT REDUCED

Omega Seamaster Aqua Terra 38 Green 220.12.38.20.10.001 MINT REDUCED

A Omega Seamaster Aqua Terra 38 in mint condition, with box and papers included.

  • Condition: Mint
  • Original Strap: Original omega strap
  • Leather Strap Depth Rating: 200m water resistant (TUNS green leather strap)
  • Warranty: Watchmaxx warranty
Posted at
Feb 12, 2026, 8:16 PM
Active
[WTS] 2020 Omega Seamaster Aqua Terra 42mm Spectre 007 James Bond LE 231.10.42.21.03.004 Full Set

2020 Omega Seamaster Aqua Terra 42mm Spectre 007 James Bond LE 231.10.42.21.03.004 Full Set

A 2020 Omega Seamaster Aqua Terra 42mm Spectre limited-edition model, created to celebrate James Bond's on-screen return in the 2015 film.

  • Condition: Excellent
  • Year: 2020
  • Edition: Spectre 007 James Bond LE
Posted at
Feb 12, 2026, 12:52 PM
Active
[WTS] Omega Aqua Terra 231.10.39 Cal 8500 39mm Full Kit - $2,900 - u/reserved post for u/Dense_Magazine9171

Omega Aqua Terra 231.10.39 Cal 8500 39mm Full Kit - $2,900 - u/reserved post for u/Dense_Magazine9171

Up for sale is my Omega Aqua Terra 231.10.39 Cal 8500, a watch that measures at 39mm and has an Calibre OMEGA 8500 movement.

  • Condition: Great condition with very minimal marks on the case and caseback
  • Case size: 39mm diameter
  • Movement: Calibre OMEGA 8500
  • Bracelet type: Original Omega steel bracelet
Posted at
Feb 11, 2026, 9:21 PM
Active
[WTS] Omega Seamaster Aqua Terra 150m Blue 220.10.41.21.03.002

Omega Seamaster Aqua Terra 150m Blue 220.10.41.21.03.002

This Omega Seamaster Aqua Terra is a blue 150m diver's watch featuring a 7.25" bracelet.

  • Bracelet length: 7.25 inches
  • Payment methods: Zelle, Venmo, Western Union
Posted at
Feb 11, 2026, 6:16 PM
Active
[WTS] Omega Seamaster Aqua Terra 38.5MM “Blue Teak” 231.10.39.21.03.002 | 2018 Box and Papers

Omega Seamaster Aqua Terra 38.5MM “Blue Teak” 231.10.39.21.03.002 | 2018 Box and Papers

This Omega Seamaster Aqua Terra is a 38.5MM watch from 2018, featuring the 'Blue Teak' dial.

  • Condition: Excellent Pre-Owned
  • Year: 2018
Posted at
Feb 11, 2026, 4:06 PM
Active
[WTS] OMEGA Aqua Terra 2022 Excellent condition full set $4400

OMEGA Aqua Terra 2022 Excellent condition full set $4400

OMEGA - Aqua Terra · $4,400
This is an OMEGA Aqua Terra, a 2022 model with double boxing and all original cards.

  • Condition: Excellent
  • Year: 2022
  • Set Type: full
Posted at
Feb 11, 2026, 10:28 AM
Active