Omega Aqua Terra Seamaster Aqua Terra 150M Co-Axial 41.5 Stainless Steel / Red Gold / Grey / Bracelet

Reference 231.20.42.21.06.001

Omega Seamaster Aqua Terra 150M Co-Axial 41.5 Stainless Steel / Red Gold / Grey / Bracelet

About this watch

The Omega Seamaster Aqua Terra 231.20.42.21.06.001 is a masterpiece of luxury watchmaking, seamlessly blending elegance and sportiness in its sophisticated design. The combination of stainless steel and red gold gives it a luxurious feel without being overly flashy. The grey dial with subtle texture creates a pleasing visual effect that catches the light beautifully. With stick and dot indexes, reading the time is both straightforward and chic. The arrow hands add to the watch's sporty demeanor, making it suitable for both formal and casual occasions. The 41.50mm case is perfectly sized for most wrists, while the open case back allows you to admire the intricate Omega caliber 8500 movement inside. This automatic movement is known for its reliability and precision, with a frequency of 25,200 vibrations per hour and 39 jewels. The 60-hour power reserve means you won't have to worry about winding it every day. With a water resistance of 150 meters, the Aqua Terra is perfect for those who enjoy aquatic adventures. Whether you're swimming at the beach or simply caught in the rain, you can trust this watch to hold up. It's like having a reliable companion that keeps ticking even when you take a break from wearing it.
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MSRP: $9,700
Market Price: $5,104

Key Features

  • Omega caliber 8500 automatic movement
  • Stainless Steel and Red Gold case
  • 150m Water Resistance
  • 41.50mm Diameter
  • Sapphire Glass
  • 60-hour Power Reserve

Specifications

Brand
Omega
Family
Aqua Terra
Model
Seamaster Aqua Terra 150M Co-Axial 41.5 Stainless Steel / Red Gold / Grey / Bracelet
Reference
231.20.42.21.06.001
Movement
8500
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
41.5mm
Dial Color
Grey
Crystal
Sapphire
Water Resistance
150

Current Listings

[WTS] (Omega) Seamaster Aqua Terra 2517.50 $2,100

(Omega) Seamaster Aqua Terra 2517.50 $2,100

Omega - 2517.50 · $2,100
This is the Omega Seamaster Aqua Terra, a 1st gen reference 2517.50 with a black dial and quartz variant in great external condition.

  • Condition: Great external condition, keeping great time and functioning as intended
  • Size: 39mm diameter
  • Movement: quartz
Posted at
Apr 22, 2026, 5:30 PM
Active
View listing on r/WatchExchange
[WTS] 2020 Omega Aqua Terra Captain’s Watch White/silver 6/20 Ref# 231.10.42.21.02.002 $3,299.00

2020 Omega Aqua Terra Captain’s Watch White/silver 6/20 Ref# 231.10.42.21.02.002 $3,299.00

Omega - 231.10.42.21.02.002 · $3,299
A 2020 Omega Aqua Terra Captain's Watch in white/silver, featuring a silvery white dial with Teak pattern and automatic self-winding movement.

  • Condition: Fantastic condition, with minor hairlines on the polished bezel and links.
  • Case size: 41.5mm
  • Water resistance depth rating: 150m
  • Movement caliber: 8500 Caliber
Posted at
Apr 22, 2026, 12:33 PM
Active
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[WTS] Omega Seamaster Aqua Terra Black Teak (full set)

Omega Seamaster Aqua Terra Black Teak (full set)

Omega - Aqua Terra · $3,800
This Omega Seamaster Aqua Terra is a black Teak variant that comes with a full set of accessories. It features an alligator leather deployant strap and has been worn daily since purchase.

  • Condition: Minor wear
  • Strap: black Northstar sailcloth with grey stitching, alligator leather deployant strap
Posted at
Apr 22, 2026, 9:26 AM
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[WTS] Omega Seamaster Aqua Terra Railmaster 2504.52 — $6800— Catch & Release, Serviced by Omega, Full Set

Omega Seamaster Aqua Terra Railmaster 2504.52 — $6800— Catch & Release, Serviced by Omega, Full Set

Omega - 2504.52 · $6,800
This Omega Seamaster Aqua Terra Railmaster is a 36mm stainless steel watch featuring a black dial, automatic movement, and an Omega 1575 stainless steel bracelet.

  • Condition: Excellent, minimal wear
  • Case material: Stainless steel
  • Diameter: 36mm
  • Lug width: 19mm
Posted at
Apr 22, 2026, 12:40 AM
Active
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[WTS] 2019 Omega Seamaster Aqua Terra 150M 38.5mm Black dial Steel bracelet

2019 Omega Seamaster Aqua Terra 150M 38.5mm Black dial Steel bracelet

Omega - 231.10.39.22.01.001 · $4,400
The Omega Seamaster Aqua Terra 150M Annual Calendar is a stainless steel watch with a black dial and Co-Axial escapement. It features an annual calendar complication, automatic date correction for March, and is COSC chronometer certified.

  • Condition: Great condition, minor flaws not visible to the eye
  • Case size: 38.5mm
  • Dial color: black
  • Water resistance: 150M
Posted at
Apr 21, 2026, 10:55 PM
Active
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[WTS] Omega Aqua Terra 2503.80 Cal 2500 39mm Blue Dial - $2,490

Omega Aqua Terra 2503.80 Cal 2500 39mm Blue Dial - $2,490

Omega - 2503.80 · $2,490
Up for sale is my Omega Aqua Terra 2503.80 in great condition with a Calibre OMEGA 2500 Automatic movement and measuring at 39 mm.

  • Condition: great condition, minimal marks on case and bracelet
  • Case size: 39mm diameter
  • Bracelet type: original Omega steel bracelet
  • Movement type: Calibre OMEGA 2500 Automatic
Posted at
Apr 21, 2026, 9:04 PM
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[WTS] Omega Aqua Terra White Co-Axial 231.10.39 38.5 mm - $2,650

Omega Aqua Terra White Co-Axial 231.10.39 38.5 mm - $2,650

Omega - 231.10.39.21.02.00 · $2,650
The Omega Seamaster Aqua Terra White Co-Axial is a 38.5mm watch with an automatic Calibre OMEGA 8500 movement.

  • Condition: Great condition, minimal marks/hairlines on the case and sapphire crystal smudging/scratches on the AR coating
  • Case size: 38.5 mm
  • Movement: Calibre OMEGA 8500 automatic movement
  • Water resistance: 150m
Posted at
Apr 21, 2026, 9:01 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Aqua Terra Skyfall 231.10.39 38.5mm - $3,450

Omega Seamaster Aqua Terra Skyfall 231.10.39 38.5mm - $3,450

Omega - 231.10.39.21.03.001 · $3,450
The Omega Seamaster Aqua Terra 'Skyfall' features a Calibre OMEGA 8500 automatic movement in a 39mm steel case with original AT bracelet and presentation box. It has a sapphire crystal and datewheel, with all functions working well.

  • Condition: great condition
  • Case size: 39mm
  • Movement type: automatic
  • Water resistance: 150m
Posted at
Apr 21, 2026, 8:56 PM
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[WTS] Omega Seamaster Aqua Terra 231.10.39 38.5mm Quartz Grey Teak - $1,950

Omega Seamaster Aqua Terra 231.10.39 38.5mm Quartz Grey Teak - $1,950

Omega - 231.10.39 · $1,950
This Omega Seamaster Aqua Terra is a quartz watch with a 38.5mm steel case and original AT bracelet. It features a one-liner dial and printed indices, as well as sapphire crystal protection.

  • Condition: Great condition
  • Case material: Steel
  • Bracelet type: Original steel Omega steel bracelet
  • Crystal type: Sapphire crystal
Posted at
Apr 21, 2026, 8:50 PM
Active
View listing on r/WatchExchange