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 150M 41.5mm Silver Teak 231.10.42.21.02.003 — Full Set

Omega Seamaster Aqua Terra 150M 41.5mm Silver Teak 231.10.42.21.02.003 — Full Set

The Omega Seamaster Aqua Terra 150M 41.5mm Silver Teak is a luxury watch featuring a 41.5mm diameter case and a silver and teak dial.

  • Size: 41.5mm diameter
Posted at
Apr 17, 2026, 7:27 AM
Active
[WTS] Omega Aqua Terra 231.10.39 Cal 8500 38.5 mm - $3,200 - Reserved post for u/Kind_Sign_2849

Omega Aqua Terra 231.10.39 Cal 8500 38.5 mm - $3,200 - Reserved post for u/Kind_Sign_2849

Up for sale is my Omega Aqua Terra 231.10.39.21.02.002 Cal 8500, measuring at 39mm with a Calibre OMEGA 8500 movement.

  • Condition: Great condition, minimal marks on the case and bracelet
  • Case Size: 39mm diameter
  • Movement: Calibre OMEGA 8500
  • Bracelet Type: Original Omega steel bracelet
Posted at
Apr 17, 2026, 4:18 AM
Active
[WTS] 2018 Omega Seamaster Aqua Terra 150M 38.5mm Teak - 231.10.39.21.02.001 - Box & Papers

2018 Omega Seamaster Aqua Terra 150M 38.5mm Teak - 231.10.39.21.02.001 - Box & Papers

Aqua Terra features a 38.5mm diameter case, perfect size for every outfit.

  • Condition: Excellent condition
  • Size: 38.5mm diameter
Posted at
Apr 17, 2026, 3:55 AM
Active
[WTS] Omega Aqua Terra 231.10.39 Cal 8500 38.5 mm - $2,650

Omega Aqua Terra 231.10.39 Cal 8500 38.5 mm - $2,650

Up for sale is my Omega Aqua Terra 231.10.39 Cal 8500, measuring at 39mm with a Calibre OMEGA 8500 movement.

  • Condition: Great condition, minor marks on case and crystal
  • Case size: 39mm
  • Bracelet type: Original Omega steel
  • Movement type: Calibre OMEGA 8500
Posted at
Apr 16, 2026, 8:47 PM
Active
[WTS] 2023 Omega Seamaster Aqua Terra Skyfall Blue 231.10.42.21.03.003 41.5mm Full Set - $4,995

2023 Omega Seamaster Aqua Terra Skyfall Blue 231.10.42.21.03.003 41.5mm Full Set - $4,995

Up for sale is a Omega Seamaster Aqua Terra Skyfall Blue, a 2023 model in excellent condition.

  • Condition: Excellent condition with minimal signs of wear
  • Year: 2023
  • Length: 41.5mm diameter
  • Contents: Watch,Inner & Outer Box,Card Holder,International Warranty Card,Pictograms Card,Instructions Manual,Hang Tag
Posted at
Apr 16, 2026, 5:40 PM
Active
[WTS][US] VSF Omega Seamaster and VSF Omega Aqua Terra

[US] VSF Omega Seamaster and VSF Omega Aqua Terra

The user is selling a VSF Omega Seamaster and a VSF Omega Aqua Terra, but no further details are provided about these watches.

  • Watch 1: VSF Omega Seamaster
  • Watch 2: VSF Omega Aqua Terra
Posted at
Apr 16, 2026, 2:59 PM
Active
[WTS] Omega Seamaster Aqua Terra "Teak Dial" 150M - 38.5mm - Ref. 231.10.39.21.02.001

Omega Seamaster Aqua Terra "Teak Dial" 150M - 38.5mm - Ref. 231.10.39.21.02.001

The Omega Seamaster Aqua Terra features a silvery-white 'Teak' dial in a 38.5mm model, blending rugged sports and refined dress styles.

  • Condition: Great overall condition with light signs of careful wear
  • Size: 38.5mm diameter
  • Dial pattern: Silver 'Teak Concept' vertical pattern
  • Crystal material: Scratch-resistant sapphire with anti-reflective coating
Posted at
Apr 15, 2026, 8:58 PM
Active
[WTS] REDUCED Omega Aqua Terra 38mm Blue Dial – Ref. 220.10.38.20.03.003 – Full Set

REDUCED Omega Aqua Terra 38mm Blue Dial – Ref. 220.10.38.20.03.003 – Full Set

A Omega Aqua Terra 38mm watch, featuring a blue shades dial and an Omega Co-Axial Master Chronometer Caliber 8800 movement. It has a stainless steel bracelet with polished center links and is water resistant up to 150 meters.

  • Condition: Excellent overall condition, light signs of wear
  • Case size: 38mm diameter
  • Dial color: blue
  • Movement type: Omega Co-Axial Master Chronometer Caliber 8800
Posted at
Apr 15, 2026, 6:03 PM
Active
[WTS] Omega Seamaster Aqua Terra 231.10.42.21.02.001 - White Teak Automatic

Omega Seamaster Aqua Terra 231.10.42.21.02.001 - White Teak Automatic

This Omega Seamaster Aqua Terra is a watch-only example in very clean pre-owned condition, with everything functioning well.

  • Condition: Very clean pre-owned condition with light wear throughout
  • Size: 41.5mm diameter
  • Dial condition: small mark on the dial (in line with the 2 o’clock marker)
Posted at
Apr 15, 2026, 4:46 PM
Active