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

Reference 231.20.39.21.02.001

About this watch

The Omega Seamaster Aqua Terra 150m Master Co-Axial is a marvel of Swiss watchmaking, offering an exquisite blend of style and performance. Its stunning stainless steel and red gold case strikes a perfect balance between boldness and wearability, while the silver dial features stick and dot indexes for clean readability. The in-house caliber 8500 movement, featuring a Co-Axial escapement, reduces friction and enhances precision, making it a reliable companion for those who lead active lifestyles. With a water resistance of 150 meters and a certified chronometer status, this timepiece is designed to keep impeccable time while withstanding the rigors of everyday wear. Whether you're in the boardroom or on the beach, this watch is sure to catch eyes and reflect your taste for quality. Its blend of elegance and functionality makes it perfect for anyone who values style and precision.
Buy Now on Jomashop
This is an affiliate link

Key Features

  • Stainless Steel and Red Gold Case
  • In-House Caliber 8500 Movement
  • 150m Water Resistance
  • Certified Chronometer Status
  • Sapphire Glass
  • 38.50mm Diameter
  • 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 / Bracelet
Reference
231.20.39.21.02.001
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 World Timer Blue - 2025 Full Set - $6,550 (RRP is $10,900)- Ref 220.12.43.22.03.001

Omega Seamaster Aqua Terra World Timer Blue - 2025 Full Set - $6,550 (RRP is $10,900)- Ref 220.12.43.22.03.001

The Omega Seamaster Aqua Terra World Timer Blue is a high-end watch featuring a blue dial and world timer functionality.

  • Rrp: $10,900
Posted at
Oct 19, 2025, 8:40 AM
Active
[WTS] Omega Aqua Terra Quartz 38.5mm Grey Dial 4654 231.10.39.60.06.00 $1,700

Omega Aqua Terra Quartz 38.5mm Grey Dial 4654 231.10.39.60.06.00 $1,700

A Omega Seamaster Aqua Terra Quartz with a grey dial and 38.5mm case size, available for sale in full set with box and papers.

  • Condition: Full set, recently polished
  • Case Size: 38.5mm
  • Movement Type: Quartz
Posted at
Oct 18, 2025, 2:24 AM
Active
[WTS] Omega Aqua Terra 38.5 Quartz Second Gen White 231.10.39.60.02.001 $1,700

Omega Aqua Terra 38.5 Quartz Second Gen White 231.10.39.60.02.001 $1,700

This Omega Aqua Terra Second Gen features a white dial and quartz movement. The watch has been recently polished to look like new, with a 38.5mm case size suitable for an 18.5cm wrist.

  • Condition: like new
  • Case Size: 38.5mm
  • Movement Type: Quartz
Posted at
Oct 17, 2025, 10:09 PM
Active
[WTS] Omega Seamaster Aqua Terra 39mm 2503.50 $2200

Omega Seamaster Aqua Terra 39mm 2503.50 $2200

Omega - 2503.50 · $2,200
This Omega Seamaster Aqua Terra 39mm is a stylish and functional watch that features a clean crystal and fits about an 18cm wrist.

  • Condition: Excellent, little signs of use
  • Case size: 39mm
  • Wrist size: fits about 18cm
Posted at
Oct 17, 2025, 9:10 PM
Active
[WTS] Omega Aqua Terra Co-Axial - FULLY SERVICED this week! - $2,599 Shipped!

Omega Aqua Terra Co-Axial - FULLY SERVICED this week! - $2,599 Shipped!

Omega - 2503.30 · $2,599
This is the classic 39mm Omega Aqua Terra featuring a silver dial and Caliber 2500 Co-Axial movement. The watch has just undergone a complete service and is running accurately.

  • Condition: Excellent with minor mark on left case side
  • Movement: Caliber 2500 Co-Axial
  • Case size: 39mm diameter
  • Water resistance: null
Posted at
Oct 17, 2025, 1:08 PM
Active
[WTS] Unworn and unfitted Omega Seamaster Aqua Terra 150M 41mm steel on steel - bought Aug 2025 [warranty start date]

Unworn and unfitted Omega Seamaster Aqua Terra 150M 41mm steel on steel - bought Aug 2025 [warranty start date]

This Omega Seamaster Aqua Terra 150M is an automatic watch with a stainless steel case and sapphire crystal.

  • Condition: mint condition, unworn
  • Movement caliber: 8900
  • Water resistance depth rating: 150m
Posted at
Oct 16, 2025, 7:54 PM
Active
[WTS] Omega Seamaster Aqua Terra - 36mm - 2504.80

Omega Seamaster Aqua Terra - 36mm - 2504.80

Omega - 2504.80 · $2,595
The Omega Seamaster Aqua Terra features a stunning navy blue sunburst dial and is powered by Omega's innovative Co-Axial automatic movement.

  • Condition: Excellent overall condition with minimal wear
  • Case Size: 36.2mm diameter
  • Crystal Type: Domed sapphire crystal with anti-reflective coating
Posted at
Oct 16, 2025, 1:17 PM
Active
[WTS] Omega Seamaster Aqua Terra Co-Axial 39mm 231.10.39.21.02.001 White

Omega Seamaster Aqua Terra Co-Axial 39mm 231.10.39.21.02.001 White

This Omega Seamaster Aqua Terra Co-Axial features a 39mm case and is available with a 7" bracelet.

  • Bracelet Size: 7 inches
Posted at
Oct 15, 2025, 5:51 PM
Active
[WTS] Omega Seamaster Aqua Terra Co-Axial 42mm 231.10.42.21.06.001 Gray

Omega Seamaster Aqua Terra Co-Axial 42mm 231.10.42.21.06.001 Gray

This Omega Seamaster Aqua Terra Co-Axial is a 42mm watch with a gray finish and has been recently serviced.

  • Condition: Pre-owned, serviced
  • Case Size: 42mm diameter
  • Bracelet Length: 7.25 inches
Posted at
Oct 15, 2025, 5:50 PM
Active