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

Reference 231.20.39.21.55.002

About this watch

The Omega Seamaster Aqua Terra 150M Co-Axial 38.5 is a masterpiece that perfectly balances elegance with functionality, featuring an array of impressive specifications including the in-house Omega caliber 8500 movement, water resistance of 150 meters, and a stunning mother-of-pearl dial. With its combination of yellow gold and stainless steel, this watch exudes refinement and sophistication, making it suitable for both formal events and casual outings. The inclusion of a date window adds to its functionality, while the adjustable clasp ensures a perfect fit. Whether you're swimming, snorkeling, or just caught in the rain, this watch can handle it all without missing a beat. Its elegant design allows it to transition seamlessly from a business meeting to a casual dinner or a beach day, making it an ideal accessory for anyone looking to invest in a watch that combines elegance, functionality, and cutting-edge technology.
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Key Features

  • In-house Omega caliber 8500 movement
  • Water resistance of 150 meters
  • Stunning mother-of-pearl dial
  • Combination of yellow gold and stainless steel case
  • Chronometer certified for precision
  • 60-hour power reserve
  • 25,200 vibrations per hour frequency

Specifications

Brand
Omega
Family
Aqua Terra
Model
Seamaster Aqua Terra 150M Co-Axial 38.5 Stainless Steel / Yellow Gold / MOP / Bracelet
Reference
231.20.39.21.55.002
Movement
8500
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
38.5mm
Dial Color
White
Crystal
Sapphire
Water Resistance
150

Current Listings

[WTS] Omega Seamaster Aqua Terra 150m | Master Co-Axial | 41.5mm | 231.10.42.21.03.003 Blue

Omega Seamaster Aqua Terra 150m | Master Co-Axial | 41.5mm | 231.10.42.21.03.003 Blue

This listing is for an Omega Seamaster Aqua Terra Master Co-Axial with a blue dial, measuring 41.5mm in diameter and featuring a 7.25-inch bracelet.

  • Case Size: 41.5mm
  • Bracelet Length: 7.25 inches
Posted at
Feb 17, 2026, 1:38 PM
Active
[WTS] Omega Aqua Terra White Teaked 38.5mm

Omega Aqua Terra White Teaked 38.5mm

Omega - 8500 · $2,750
This Omega Aqua Terra 38.5mm features a white teaked dial and is available for purchase with an extra omega travel bag.

  • Condition: Excellent, no issues
  • Case Size: 38.5mm
  • Box Papers: No box/no papers
Posted at
Feb 16, 2026, 10:46 PM
Active
[WTS] Omega Seamaster Aqua Terra Worldtimer – Blue Strap – Ref. 220.10.43.22.03.001 – Unworn 2025 – $8,490 + Shipping

Omega Seamaster Aqua Terra Worldtimer – Blue Strap – Ref. 220.10.43.22.03.001 – Unworn 2025 – $8,490 + Shipping

A new, unworn Omega Seamaster Aqua Terra Worldtimer featuring a striking blue dial and matching blue strap.

  • Condition: New / Unworn
  • Case size: 43mm diameter
  • Water resistance: 150m depth rating
  • Power reserve: 60-hour power reserve
Posted at
Feb 16, 2026, 9:17 PM
Active
[WTS] Omega Aqua Terra 38 Blue Teak

Omega Aqua Terra 38 Blue Teak

Omega - Aqua Terra 38mm · $4,200
Up for sale is an Omega Aqua Terra 38mm with blue horizontal teak dial on bracelet. It includes various accessories such as the Omega white box, hang tag, full bracelet with all links, manual, and a red Omega travel pod.

  • Condition: Excellent
  • Diameter: 38mm
Posted at
Feb 16, 2026, 4:32 PM
Active
[WTS] Omega Aqua Terra 36mm - Blue Dial - Quartz - 2518.80 - Price Reduced!

Omega Aqua Terra 36mm - Blue Dial - Quartz - 2518.80 - Price Reduced!

Omega - 2518.80 · $1,695
A beautiful Omega Seamaster Aqua Terra Blue, 36mm in size, with a stunning blue dial.

  • Condition: Good overall condition, minimal wear
  • Size: 36mm diameter
  • Movement type: Quartz
Posted at
Feb 16, 2026, 2:22 PM
Active
[WTS] Omega Seamaster Aqua Terra 150m | Master Co-Axial | 41.5mm | 231.10.42.21.03.003 Blue

Omega Seamaster Aqua Terra 150m | Master Co-Axial | 41.5mm | 231.10.42.21.03.003 Blue

This listing is for an Omega Seamaster Aqua Terra Master Co-Axial, a blue-coloured watch with a 41.5mm case size.

  • Bracelet Length: 7.25"
Posted at
Feb 16, 2026, 1:26 PM
Active
[WTS] Omega Seamaster Aqua Terra Ref. 231.10.42.21.03.003 Excellent Condition

Omega Seamaster Aqua Terra Ref. 231.10.42.21.03.003 Excellent Condition

The Omega Seamaster Aqua Terra reference 231.10.42.21.03.003 is a versatile watch that combines sport and elegance, featuring a teak-pattern dial and sapphire display caseback.

  • Condition: Excellent pre-owned condition
  • Case diameter: 42mm
  • Movement: Omega Co-Axial automatic
Posted at
Feb 15, 2026, 9:22 PM
Active
[WTS] Omega Seamaster Aqua Terra Blue Dial - 36mm - 2504.80 - Clean!

Omega Seamaster Aqua Terra Blue Dial - 36mm - 2504.80 - Clean!

Omega - 2504.80 · $2,595
This Omega Seamaster Aqua Terra features a navy blue sunburst dial and is powered by Omega's Co-Axial automatic movement, housed in a 36.2mm case.

  • Condition: Excellent overall condition, minimal wear
  • Case diameter: 36.2mm
  • Crystal type: domed sapphire crystal with anti-reflective coating
  • Bracelet material: stainless steel
Posted at
Feb 15, 2026, 5:50 PM
Active
[WTS] Omega Seamaster Aqua Terra - ‘Blue Wave’ Gold Accents - Complete Set

Omega Seamaster Aqua Terra - ‘Blue Wave’ Gold Accents - Complete Set

Omega - 23110422103006 · $5,250
The Omega Seamaster Aqua Terra 150M 'Blue Wave Dial' is 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
  • Movement: Omega Master Co-Axial calibre 8500
Posted at
Feb 15, 2026, 4:28 PM
Active