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 Aqua Terra 38 mm - original new bracelet

Omega Aqua Terra 38 mm - original new bracelet

Omega - 020STZ006276 · $895
Aqua Terra 38mm watch with a new original bracelet, barely worn.

  • Condition: practically new
  • Width: 19mm
  • Location: Warsaw, Poland, EU
Posted at
Apr 11, 2026, 9:42 AM
Active
[WTS] Omega Seamaster Aqua Terra Blue 231.13.42.21.03.001 2023 B&P Repost

Omega Seamaster Aqua Terra Blue 231.13.42.21.03.001 2023 B&P Repost

The Omega Seamaster Aqua Terra is a luxury watch known for its sleek design and precise timekeeping, available in various sizes to suit different wrist preferences.

  • Condition: Excellent condition
  • Case Size: 41.5mm
  • Box And Papers: 2023 box and papers
  • Band Condition: pre owned but in great shape
Posted at
Apr 10, 2026, 10:08 PM
Active
[WTS] OMEGA Seamaster Aqua Terra Worldtimer "Summer Blue" Ref. 220.10.43.22.03.002 - ULTIMATE SET! 🔥$9,600🔥

OMEGA Seamaster Aqua Terra Worldtimer "Summer Blue" Ref. 220.10.43.22.03.002 - ULTIMATE SET! 🔥$9,600🔥

The OMEGA Seamaster Aqua Terra Worldtimer Ref. 220.10.43.22.03.002 is a sophisticated travel companion that puts the world on your wrist.

  • Condition: VERY GOOD (some light scratches on case and bracelet)
  • Case size: 43mm
  • Bracelet length adjustment: ~7"
  • Contents: ULTIMATE SET (box, papers, serial hang tag, spare links, shipping coffin, and digital copy of original purchase receipt)
Posted at
Apr 10, 2026, 9:11 PM
Active
[WTS] OMEGA Seamaster Aqua Terra 150M Terracotta Ref. 220.10.38.20.13.003 - ULTIMATE SET! 🔥$6,100🔥

OMEGA Seamaster Aqua Terra 150M Terracotta Ref. 220.10.38.20.13.003 - ULTIMATE SET! 🔥$6,100🔥

The OMEGA Seamaster Aqua Terra Ref. 220.10.38.20.13.003 features a Terracotta dial, symmetrical case design, and polished brushed bracelet.

  • Condition: UNWORN
  • Model name: Seamaster Aqua Terra 150M
  • Case size: 38mm diameter
  • Bracelet length: ~7" (pre-sized)
Posted at
Apr 10, 2026, 9:08 PM
Active
[WTS] Omega Seamaster Aqua Terra – ‘Blue Wave’ – Complete Set

Omega Seamaster Aqua Terra – ‘Blue Wave’ – Complete Set

Omega - 23110422103006 · $5,250
The Omega Seamaster Aqua Terra 'Blue Wave' is a striking timepiece with a blue dial featuring a wave pattern, and 18K yellow gold hands and indexes. It comes in a stainless steel case on a stainless steel bracelet.

  • Condition: Excellent all-around condition
  • Case size: 41.5mm
  • Water resistance: 150M / 15 bar
  • Power reserve: 60 hours
Posted at
Apr 10, 2026, 2:17 PM
Active
[WTS] Omega Aqua Terra 8900 41mm Lacquer Black 220.10.41.21.01.002 ( new / 2026 / box and papers )

Omega Aqua Terra 8900 41mm Lacquer Black 220.10.41.21.01.002 ( new / 2026 / box and papers )

This Omega Aqua Terra 8900 is a brand new watch with a Lacquer Black Dial, featuring a stainless steel case and master chronometer movement.

  • Condition: Brand new
  • Case size: 41mm diameter
  • Movement type: Master Chronometer
Posted at
Apr 10, 2026, 1:41 PM
Active
[WTS] Omega Aqua Terra 8900 41mm Turquoise 220.10.41.21.03.006 ( new / 2026 / box and papers )

Omega Aqua Terra 8900 41mm Turquoise 220.10.41.21.03.006 ( new / 2026 / box and papers )

Up for sale is a brand new Omega Aqua Terra 8900 41mm Turquoise Dial on Bracelet, complete with all boxes and papers.

  • Condition: Brand new
  • Case size: 41mm diameter
  • Movement type: Master Chronometer Movement
Posted at
Apr 10, 2026, 1:36 PM
Active
[WTS] Omega Aqua Terra 8900 41mm Green Dial 220.10.41.21.10.001 ( new / 2026 / box and papers )

Omega Aqua Terra 8900 41mm Green Dial 220.10.41.21.10.001 ( new / 2026 / box and papers )

This Omega Aqua Terra 8900 features a green dial and is paired with a stainless steel case, equipped with the Master Co-Axial Movement.

  • Condition: Brand new
  • Case size: 41mm diameter
  • Movement: Master Co-Axial
Posted at
Apr 10, 2026, 1:31 PM
Active
[WTS] Omega Aqua Terra 8800 38mm White Diver 220.12.38.20.02.001 ( new / 2026 / box and papers )

Omega Aqua Terra 8800 38mm White Diver 220.12.38.20.02.001 ( new / 2026 / box and papers )

A brand new Omega Aqua Terra 8800 38mm stainless steel watch with a white dial on a rubber strap, coming complete with all boxes and papers.

  • Condition: Brand new
  • Movement Type: Master Chronometer Movement
  • Case Material: Stainless Steel
  • Case Size: 38mm diameter
Posted at
Apr 10, 2026, 1:26 PM
Active