Omega Aqua Terra Seamaster Aqua Terra 150M Co-Axial 30 Red Gold / MOP / Bracelet

Reference 231.50.30.20.55.001

Omega Seamaster Aqua Terra 150M Co-Axial 30 Red Gold / MOP / Bracelet

About this watch

The Omega Seamaster Aqua Terra 150M Co-Axial 30 Red Gold / MOP / Bracelet is a masterpiece of luxury watchmaking, blending exquisite design with cutting-edge technology and timeless appeal. Its round case crafted from luxurious red gold exudes elegance, while the mother-of-pearl dial adds an ethereal quality that catches the light beautifully. The gem-set indexes elevate the overall aesthetic to new heights, providing a touch of glamour while ensuring easy readability. At the heart of this timepiece lies the Omega caliber 8521 movement, featuring a self-winding mechanism with Co-Axial escapement and automatic winding in both directions. This remarkable movement boasts an impressive power reserve of 50 hours, making it suitable for extended periods without wear. The Aqua Terra's durability is further enhanced by its water resistance of 150 meters, courtesy of the sapphire crystal glass. Whether you're dressing up or enjoying an active lifestyle, this watch seamlessly adapts to your wardrobe needs. Its versatility and style make it a perfect choice for anyone who appreciates luxury.
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Key Features

  • Omega caliber 8521 movement
  • Red Gold case and bracelet
  • Sapphire crystal glass
  • 150M water resistance
  • 50-hour power reserve
  • Co-Axial escapement
  • Automatic winding in both directions

Specifications

Brand
Omega
Family
Aqua Terra
Model
Seamaster Aqua Terra 150M Co-Axial 30 Red Gold / MOP / Bracelet
Reference
231.50.30.20.55.001
Movement
8521
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
Red Gold 30mm
Dial Color
White
Crystal
Sapphire
Water Resistance
150

Current Listings

[WTS] Omega Seamaster Aqua Terra 231.10.42.21.02.001 - White Teak Automatic

Omega Seamaster Aqua Terra 231.10.42.21.02.001 - White Teak Automatic

Omega - 231.10.42.21.02.001 · $2,895
This Omega Seamaster Aqua Terra is a watch-only example in very clean pre-owned condition, with everything functioning well.

  • Condition: Very clean pre-owned condition with light wear throughout
  • Size: 41.5mm diameter
  • Dial condition: small mark on the dial (in line with the 2 o’clock marker)
Posted at
Apr 15, 2026, 4:46 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 $3,599.00

2020 Omega Aqua Terra Captain’s Watch White/silver 6/20 Ref# 231.10.42.21.02.002 $3,599.00

Omega - 231.10.42.21.02.002 · $3,599
A 2020 Omega Aqua Terra Captain's Watch in white and silver, featuring an automatic self-winding movement, 41.5mm case, and 150M water resistance.

  • Condition: fantastic condition with a few minor flaws on the case and box
  • Diameter: 41.5mm
  • Water Resistance: 150m
  • Movement: 8500 Caliber automatic self-winding movement
Posted at
Apr 15, 2026, 12:12 PM
Active
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[WTS] Omega Aqua Terra 41mm Black Lacquer Dial, $5200

Omega Aqua Terra 41mm Black Lacquer Dial, $5200

Omega - 220.10.41.21.01.002 · $5,200
A Omega Aqua Terra with a black lacquer dial, available for sale.

  • Condition: Preowned
  • Shipping: $100 (USA)
  • Payment Methods: Wire,Credit Card
  • Warranty: 2025
Posted at
Apr 15, 2026, 10:30 AM
Active
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[WTS] Omega Seamaster Aqua Terra 231.10.39.21.01.001 Black Teak 38.5mm - $3,250

Omega Seamaster Aqua Terra 231.10.39.21.01.001 Black Teak 38.5mm - $3,250

Omega - 231.10.39.21.01.001 · $3,250
Up for sale is my great condition Omega Seamaster Aqua Terra 231.10.39.21.01.001.

  • Condition: Very good condition for its age, minimal marks/hairlines on case, caseback, and bracelet
  • Movement: Automatic Omega Calibre 8500
  • Case size: 38.5mm
  • Bracelet material: Steel
Posted at
Apr 15, 2026, 4:35 AM
Active
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[WTS] Omega Aqua Terra 231.10.39 Cal 8500 38.5 mm - $2,650

Omega Aqua Terra 231.10.39 Cal 8500 38.5 mm - $2,650

Omega - 231.10.39 Cal 8500 · $2,650
Up for sale is my Omega Aqua Terra 231.10.39 Cal 8500. This watch measures at 39mm and has an OMEGA 8500 movement.

  • Condition: great condition, minimal marks on the case and bezel
  • Case size: 39mm
  • Movement: Calibre OMEGA 8500
  • Bracelet material: steel
Posted at
Apr 15, 2026, 4:33 AM
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[WTS] Omega Aqua Terra 2503.30 39mm Champagne Dial Box and Papers - $2,350

Omega Aqua Terra 2503.30 39mm Champagne Dial Box and Papers - $2,350

Omega - 2503.30 · $2,350
Up for sale is my great condition Omega Seamaster 2503.30, measuring at 39mm with an automatic Omega Calibre 2500 movement.

  • Condition: Very good condition for its age with minimal marks/hairlines on the case, caseback, and bracelet
  • Diameter: 39mm
  • Movement: Omega Calibre 2500
Posted at
Apr 15, 2026, 4:25 AM
Active
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[WTS] Omega Seamaster Aqua Terra 150m Master Co-Axial Golf Edition (2020) Complete Kit With Extra Straps 220.12.41.21.01.002

Omega Seamaster Aqua Terra 150m Master Co-Axial Golf Edition (2020) Complete Kit With Extra Straps 220.12.41.21.01.002

Omega - 220.12.41.21.01.002 · $4,500
A fantastic, versatile watch with a sporty edge in the Omega Seamaster Aqua Terra Golf Edition.

  • Condition: Used, excellent condition
  • Case size: 41mm diameter
  • Water resistance: 150m depth rating
  • Movement: Omega Co-Axial Master Chronometer
Posted at
Apr 12, 2026, 2:19 AM
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[WTS] 2023 Omega Seamaster Aqua Terra Skyfall Blue 231.10.42.21.03.003 41.5mm Full Set - $4,995

2023 Omega Seamaster Aqua Terra Skyfall Blue 231.10.42.21.03.003 41.5mm Full Set - $4,995

Omega - 231.10.42.21.03.003 · $4,995
A 2023 Omega Seamaster Aqua Terra Skyfall Blue, a luxury watch featuring a 41.5mm case size.

  • Condition: Excellent condition with minimal signs of wear
  • Year: 2023
  • Size: 41.5mm diameter
  • Contents: Watch,Inner & Outer Box,Card Holder,International Warranty Card,Pictograms Card,Instructions Manual,Hang Tag
Posted at
Apr 11, 2026, 1:17 PM
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[WTS] Omega Seamaster Aqua Terra 36mm Ref. 2504.50 | Great Condition | Inky Black Sunray Dial | Co-Axial Caliber 2500 | All Original | $2450 (SERVICED)

Omega Seamaster Aqua Terra 36mm Ref. 2504.50 | Great Condition | Inky Black Sunray Dial | Co-Axial Caliber 2500 | All Original | $2450 (SERVICED)

Omega - 2504.50 · $2,450
A modern classic with the soul of a Seamaster, this Omega Aqua Terra Ref. 2504.50 features a 36mm stainless steel case, inky black sunray dial, and Co-Axial Caliber 2500 movement.

  • Condition: Great Condition
  • Movement: Serviced Automatic Caliber 2500 (Co-Axial Chronometer)
  • Dial: Pristine Deep Black Sunray dial with applied indices
  • Case: Sharp Stainless Steel construction with original factory geometry, Diameter: 36.2 mm (excluding crown), Thickness: 11 mm, Lug-to-lug: 44 mm
Posted at
Apr 11, 2026, 10:47 AM
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