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] 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 41mm stainless steel case with a master co-axial movement and green dial.

  • Condition: Brand new
  • Case size: 41mm diameter
  • Movement type: master co-axial
Posted at
May 15, 2026, 12:31 PM
Active
[WTS] Omega Aqua Terra 8800 38mm Green Diver 220.12.38.20.10.001 ( new / 2026 / box and papers )

Omega Aqua Terra 8800 38mm Green Diver 220.12.38.20.10.001 ( new / 2026 / box and papers )

This Omega Aqua Terra 8800 features a 38mm stainless steel case, green dial, and co-axial movement.

  • Condition: Brand new
  • Case size: 38mm diameter
  • Movement type: Master Co-Axial
Posted at
May 15, 2026, 12:25 PM
Active
[WTS] Omega Seamaster Black Dial Aqua Terra 2503.50 39mm Box and Papers  - $2,650

Omega Seamaster Black Dial Aqua Terra 2503.50 39mm Box and Papers - $2,650

Omega - 2503.50 · $2,650
Up for sale is my great condition Omega Seamaster Aqua Terra 39mm watch with an automatic movement and steel case.

  • Condition: Very good condition for its age
  • Case size: 39mm diameter
  • Movement: automatic Omega Calibre 2500
Posted at
May 14, 2026, 9:38 PM
Active
[WTS] Omega Seamaster Aqua Terra 150M – 'Blue Wave’ – Gold Accents – Complete Set

Omega Seamaster Aqua Terra 150M – 'Blue Wave’ – Gold Accents – Complete Set

Omega - 23110422103006 · $4,950
A striking Aqua Terra released for a very short period in limited production, featuring a blue dial with a wave pattern and 18K yellow gold accents.

  • Condition: Excellent all-around condition
  • Case Size: 41.5mm diameter
  • Water Resistance: 150M / 15 bar
  • Power Reserve: 60 hours
Posted at
May 14, 2026, 3:41 PM
Active
[WTS] Omega Seamaster Aqua Terra 150M Black Dial (220.10.38.20.01.001) – Excellent Condition

Omega Seamaster Aqua Terra 150M Black Dial (220.10.38.20.01.001) – Excellent Condition

The Omega Seamaster Aqua Terra is a versatile, super clean piece that works well dressed up or daily.

  • Condition: Excellent (minor wear)
  • Case size: 38mm
  • Movement: Co-Axial Master Chronometer (Caliber 8800)
  • Power reserve: ~55 hours
Posted at
May 14, 2026, 3:36 PM
Active
[WTS] Omega Aqua Terra 38.5mm 231.1039 $2750 - Box & papers

Omega Aqua Terra 38.5mm 231.1039 $2750 - Box & papers

Omega - 231.1039 · $2,750
The Omega Aqua Terra reference 231.1039 is a 38.5mm watch available for sale.

  • Length of stay with owner: 2 months
Posted at
May 14, 2026, 3:05 PM
Active
[WTS] Omega Aqua Terra GMT Worldtimer - 220.92.43.22.99.001 - Grey - Titanium - 43mm - 2025 AD Unit Mint Condition

Omega Aqua Terra GMT Worldtimer - 220.92.43.22.99.001 - Grey - Titanium - 43mm - 2025 AD Unit Mint Condition

This Omega Aqua Terra GMT Worldtimer is a highly sought-after timepiece that stands out for its gunmetal titanium color and applied city displays.

  • Condition: Mint condition
  • Case material: Titanium
  • Case size: 43mm
  • Band type: Not specified
Posted at
May 14, 2026, 1:36 PM
Active
[WTS] Omega Aqua Terra Chrono  - Ref: 2512.30.00 - FULL KIT

Omega Aqua Terra Chrono - Ref: 2512.30.00 - FULL KIT

Omega - 2512.30.00 · $3,300
This Omega Seamaster Aqua Terra Chronograph features a white dial with flame blue indices, housed in a 42mm case with a column-wheel chronograph movement.

  • Condition: Very good, minor marks on bezel, case and bracelet
  • Movement: Omega 3301 (column-wheel chronograph movement based on the Piguet 1285 movement)
  • Case Size: 42mm
  • Bracelet Size: 7.5
Posted at
May 14, 2026, 1:07 PM
Active
[WTS] Omega Seamaster Aqua Terra 2503.80.00 “First Gen” 39mm — Blue Sunburst Dial — Cal. 2500 Co-Axial — Fresh Service — $2,699 Shipped

Omega Seamaster Aqua Terra 2503.80.00 “First Gen” 39mm — Blue Sunburst Dial — Cal. 2500 Co-Axial — Fresh Service — $2,699 Shipped

A first-generation Omega Seamaster Aqua Terra with a beautiful blue sunburst dial and the reliable Cal. 2500 Co-Axial Chronometer movement.

Posted at
May 14, 2026, 11:43 AM
Active