Omega Aqua Terra Seamaster Aqua Terra 150M Co-Axial 38.5 Stainless Steel / Red Gold / Black

Reference 231.23.39.21.51.001

About this watch

The Omega Seamaster Aqua Terra 150M Co-Axial 38.5 is a masterful blend of style and functionality. This luxurious timepiece boasts a stunning combination of red gold and stainless steel, giving it a sporty yet elegant appearance. The round case measures 38.50 mm in diameter, making it suitable for both men and women. The black dial features gem-set indexes that catch the light beautifully, adding a touch of sophistication to the overall design. Arrow-shaped hands enhance visibility while also adding a modern twist to its classic face. With a water resistance of up to 150 meters, this watch is designed for function as well as form. But what truly sets it apart is the Omega caliber 8500 movement, a certified chronometer that offers an impressive 60 hours of power reserve. The Co-Axial escapement reduces friction, extending the longevity of the watch's performance. Whether you're in a business meeting or enjoying a casual day out, this watch adapts beautifully to any scenario. It's a conversation starter, and with its exquisite design, reliable movement, and versatility, it easily earns its place in the coveted collection of luxury timepieces.
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Key Features

  • Omega caliber 8500 movement
  • Certified chronometer
  • 60 hours power reserve
  • Co-Axial escapement
  • Water resistance up to 150 meters
  • Red gold and stainless steel construction
  • Sapphire glass
  • 38.50 mm diameter case

Specifications

Brand
Omega
Family
Aqua Terra
Model
Seamaster Aqua Terra 150M Co-Axial 38.5 Stainless Steel / Red Gold / Black
Reference
231.23.39.21.51.001
Movement
8500
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
38.5mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
150

Current Listings

[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
[WTS] Omega Aqua Terra Shades - 38mm Sandstone - 220.10.38.20.09.001 - Price Reduced!

Omega Aqua Terra Shades - 38mm Sandstone - 220.10.38.20.09.001 - Price Reduced!

A Omega Seamaster Aqua Terra Shades "Sandstone" watch in 38mm size, described as one of the best looking omegas of all time, available for sale.

  • Condition: Lightly pre-owned with light, normal wear throughout
  • Size: 38mm diameter
  • Accuracy: +1 second/day
  • Amplitude: 300+
Posted at
Mar 8, 2026, 7:00 PM
Active
[WTS] Omega Aqua Terra 41mm blue with both OEM bracelet and rubber options

Omega Aqua Terra 41mm blue with both OEM bracelet and rubber options

Omega - 41mm Aqua Terra · $4,200
This Omega Aqua Terra 41 mm blue dial watch features a 8900 movement with an independent jumping hour hand complication, suitable for travel. It keeps excellent time and comes in excellent condition.

  • Condition: Excellent condition with only the slightest of wear
  • Movement: 8900 movement
  • Bracelet options: OEM bracelet, OEM rubber strap with deployant and end links
  • Straps included: $495 each
Posted at
Mar 8, 2026, 12:35 PM
Active
[WTS] Omega Seamaster Aqua Terra Links

Omega Seamaster Aqua Terra Links

Omega · $50
This Omega Seamaster Aqua Terra is an excellent condition watch that has never been used. It is priced to sell and comes with authentic OEM links.

  • Condition: Excellent, never used
  • Status: Genuine OEM Authentic
Posted at
Mar 7, 2026, 8:34 PM
Active
[WTS] Omega Seamaster Aqua Terra 41.5mm 231.10.42.21.03.003 | 2023 Box and Papers

Omega Seamaster Aqua Terra 41.5mm 231.10.42.21.03.003 | 2023 Box and Papers

2023 Omega Seamaster Aqua Terra 41.5mm watch in very good condition. The watch has a slight wear on the polished parts of the case, bezel, and bracelet, as well as a tiny ding by 8 o'clock on the bezel.

  • Condition: Great Pre-Owned Condition with slight wear on polished parts and a tiny ding by 8 o'clock on bezel
  • Case Size: 41.5mm
  • Bracelet Links: 15.5 Links
  • Serviced: Unknown
Posted at
Mar 7, 2026, 4:30 PM
Active
[WTS] Omega Seamaster Aqua Terra – Ref 231.23.39.21.06.001 – 2012 Full Set

Omega Seamaster Aqua Terra – Ref 231.23.39.21.06.001 – 2012 Full Set

This Aqua Terra presents exceptionally well overall, with a stainless steel case and a distinctive feature of a solid 18k gold bezel paired with matching gold hands and crown.

  • Condition: Very good condition
  • Case size: 39mm diameter
  • Year of manufacture: 2012
  • Movement type: Co-Axial automatic
Posted at
Mar 7, 2026, 9:58 AM
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

The Omega Seamaster Aqua Terra 150m features a blue dial and a 41.5mm case, along with a Master Co-Axial movement.

  • Depth rating: 150m
  • Bracelet length: 7.25 inches
Posted at
Mar 7, 2026, 9:12 AM
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 'Summer Blue' is a sophisticated travel companion that puts the world on your wrist, featuring a 43mm stainless steel case and a dial with a laser-ablated Earth design surrounded by a 24-hour glass ring indicating day and night.

  • Condition: VERY GOOD - some light scratches on case and bracelet
  • Case size: 43mm
  • Bracelet length: ~7 inches
Posted at
Mar 6, 2026, 8:19 PM
Active