Omega Aqua Terra Seamaster Aqua Terra 150M Co-Axial 38.5 Stainless Steel / MOP

Reference 231.13.39.21.55.001

About this watch

Welcome, watch enthusiasts! If you’re on the lookout for a watch that combines elegance, durability, and precision, then you’re in the right place. Today, we’re diving deep into the stunning world of the Omega Seamaster Aqua Terra 150M Co-Axial 38.5 Stainless Steel / MOP. With a reference number of 231.13.39.21.55.001, this timepiece is a true gem. The brand has a rich legacy of precision timekeeping, and they’ve even been to the moon! So, you can bet that their timepieces are engineered with meticulous care. The Seamaster Aqua Terra family is all about versatility. Whether you’re dressing up for a gala or just enjoying a casual day out, this collection has something for everyone. The first thing you’ll notice about the Aqua Terra is its breathtaking Mother of Pearl (MOP) dial. It’s like wearing a piece of the ocean on your wrist! The iridescent surface catches light beautifully, creating a mesmerizing display that changes with every angle. With a diameter of 38.50 mm, the watch strikes a perfect balance between formality and casual wear. It’s large enough to make a statement yet not so bulky that it becomes cumbersome. The stainless steel case is polished to perfection, giving it a sleek and shiny appearance. Plus, the open case back is a delightful touch, inviting you to admire the intricate movement inside. This watch isn’t just a timepiece; it’s a conversation starter. With a water resistance of 150 meters, the Aqua Terra is versatile enough for both the beach and the boardroom. Whether you’re swimming, snorkeling, or just caught in an unexpected rainstorm, you don’t have to worry about water damage. Omega really thought of everything! The stainless steel bracelet is both sturdy and comfortable. It features a classic design with a secure clasp that ensures it stays safely on your wrist. The brushed and polished links add a touch of sophistication, making it suitable for any occasion. Plus, it’s adjustable, so you can get the perfect fit. Wearing the Aqua Terra feels like a dream. The weight is just right—not too heavy or too light. You’ll forget you have it on, and yet it draws compliments wherever you go. It’s the kind of watch that makes you feel confident, whether you’re on a business call or enjoying a night out. With its stunning design, robust movement, and unbeatable versatility, this watch is a worthy addition to any collection.
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MSRP: $6,600
Market Price: $3,187

Key Features

  • Omega caliber 8500 movement
  • 38.50 mm stainless steel case
  • 150 meters water resistance
  • Mother of Pearl dial
  • Stainless steel bracelet with secure clasp
  • Open case back for viewing movement
  • Chronometer certified for accuracy

Specifications

Brand
Omega
Family
Aqua Terra
Model
Seamaster Aqua Terra 150M Co-Axial 38.5 Stainless Steel / MOP
Reference
231.13.39.21.55.001
Movement
8500
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
Stainless Steel 38.5mm
Dial Color
White
Crystal
Sapphire
Water Resistance
150

Current Listings

[WTS] 2026 Omega Seamaster Aqua Terra BRAND NEW

2026 Omega Seamaster Aqua Terra BRAND NEW

A timeless and elegant luxury timepiece that would make a great addition to any collection or the perfect watch to start one.

  • Year of purchase: 2026
  • Purchase date: 02/13/2026
Posted at
Mar 11, 2026, 11:24 PM
Active
[WTS] Omega Seamaster Aqua Terra 41.5mm 231.10.42.21.06.001 | 2019 Box and Papers

Omega Seamaster Aqua Terra 41.5mm 231.10.42.21.06.001 | 2019 Box and Papers

  • Year: 2019
  • Case Size: 41.5mm diameter
  • Box And Papers: true
Posted at
Mar 11, 2026, 11:08 PM
Active
[WTS] Omega Seamaster Aqua Terra 2577.50 Ladies  - $1,500 - Reserved post for u/gvongies

Omega Seamaster Aqua Terra 2577.50 Ladies - $1,500 - Reserved post for u/gvongies

Omega - 2577.50 · $1,500
Up for sale is my Omega Seamaster Aqua Terra 2577.50, a ladies watch with an automatic movement and 29mm diameter.

  • Condition: Very good condition (8.8/10)
  • Case material: steel
  • Bracelet material: Omega steel
  • Movement type: automatic
Posted at
Mar 10, 2026, 9:14 PM
Active
[WTS] Omega Seamaster Aqua Terra 2504.50.00 - $2,500 - Reserved post for u/gvongies

Omega Seamaster Aqua Terra 2504.50.00 - $2,500 - Reserved post for u/gvongies

Up for sale is my Omega Seamaster Aqua Terra 2504.50.00, which measures 36mm and has an automatic movement.

  • Condition: very good condition
  • Case material: steel case
  • Bracelet type: original Omega Steel bracelet
  • Water resistance: not specified
Posted at
Mar 10, 2026, 9:06 PM
Active
[WTS] 2024 Omega Seamaster Aqua Terra 150M 41MM Green Dial Steel Bracelet (220.10.41.21.10.001) Complete Set

2024 Omega Seamaster Aqua Terra 150M 41MM Green Dial Steel Bracelet (220.10.41.21.10.001) Complete Set

A 2024 Omega Seamaster Aqua Terra 150M with a green dial, sold as part of a complete set including all original accessories.

  • Condition: Excellent with minor wear on the bracelet
  • Box and papers: Complete set including all three cards and warranty
  • Bracelet length: Adjustable, with removed links
Posted at
Mar 10, 2026, 12:31 PM
Active
[WTS] Omega 2504.80.00 — Seamaster Aqua Terra Blue Dial 36mm — Cal. 2500 Co-Axial Chronometer — $2,499 Shipped

Omega 2504.80.00 — Seamaster Aqua Terra Blue Dial 36mm — Cal. 2500 Co-Axial Chronometer — $2,499 Shipped

Omega - 2504.80.00 · $2,499
This Omega Seamaster Aqua Terra features a sunburst blue dial, Cal. 2500 Co-Axial automatic movement, and a 36mm case size.

  • Condition: Pre-owned with honest wear and light scratches from age
  • Case dimensions: 36mm diameter, 43.5mm lug to lug, 11mm thickness
  • Movement: Cal. 2500 Co-Axial automatic chronometer
  • Bracelet fit: Fits up to a 7" wrist
Posted at
Mar 10, 2026, 10:38 AM
Active
[WTS] Omega Aqua Terra 231.10.39 Cal 8500 38.5mm - $2,750

Omega Aqua Terra 231.10.39 Cal 8500 38.5mm - $2,750

Up for sale is my Omega Aqua Terra 231.10.39 Cal 8500, a great condition watch with a Calibre OMEGA 8500 movement.

  • Condition: great condition with very minimal marks on the case and bracelet
  • Case size: 38.5mm diameter
  • Movement: Calibre OMEGA 8500
  • Bracelet type: original Omega steel bracelet
Posted at
Mar 9, 2026, 10:18 PM
Active
[WTS] Omega Seamaster Aqua Terra Bond Blue – 38.5mm – Box & Papers

Omega Seamaster Aqua Terra Bond Blue – 38.5mm – Box & Papers

Omega - 23110392103002 · $4,400
The Omega Seamaster Aqua Terra Bond Blue is a versatile watch similar to those worn by James Bond in various films, featuring a 38.5mm stainless steel case and blue teak pattern dial.

  • Case Size: 38.5mm diameter
  • Movement: Omega 8500 Calibre
Posted at
Mar 9, 2026, 1:39 PM
Active
[WTS] OMEGA Seamaster Aqua Terra - $4000 Shipped

OMEGA Seamaster Aqua Terra - $4000 Shipped

This is a personal favorite, very babied. Running at +1sec/24hrs. Just a gorgeous piece.

  • Condition: Minty, with minor hairlines in hard to see spots
  • Case condition: Minty case and crystal
  • Bracelet type: Brushed
Posted at
Mar 8, 2026, 7:18 PM
Active