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

Reference 231.20.42.21.06.002

About this watch

The Omega Seamaster Aqua Terra 150M Co-Axial 41.5 is a masterpiece of luxury watchmaking, boasting a stunning design that seamlessly combines elegance and sportiness. Its in-house movement, the Omega Caliber 8500, is chronometer certified, ensuring precision and reliability. With a water resistance of up to 150 meters, this timepiece is perfect for aquatic activities, while its versatility makes it suitable for any occasion. Whether you're a seasoned collector or just starting your journey in luxury watches, this model deserves a spot in your collection. Its strong resale value and brand reputation make it an investment that will last for generations.
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MSRP: $8,350
Market Price: $3,944

Key Features

  • In-house Omega Caliber 8500 movement
  • Chronometer certification for precision and reliability
  • Water resistance up to 150 meters
  • Stunning design combining elegance and sportiness
  • Versatile enough to wear for any occasion

Specifications

Brand
Omega
Family
Aqua Terra
Model
Seamaster Aqua Terra 150M Co-Axial 41.5 Stainless Steel / Red Gold / Grey / Bracelet
Reference
231.20.42.21.06.002
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] 2025 Omega Aqua Terra 150M 41mm Turquoise Gradient, Ceramic Bezel (220.32.41.21.03.001)

2025 Omega Aqua Terra 150M 41mm Turquoise Gradient, Ceramic Bezel (220.32.41.21.03.001)

The Omega Aqua Terra is a tribute to the brand's maritime heritage, featuring a symmetrical stainless-steel case with a brushed ceramic bezel and a wave-edged screw-in caseback. The watch boasts a lacquered turquoise dial with a black gradient effect and facetted hands.

  • Condition: Excellent plus condition
  • Case material: stainless steel
  • Bezel material: ceramic
  • Diameter: 41mm
Posted at
Jan 3, 2026, 2:06 PM
Active
[WTS] Omega Seamaster Aqua Terra 150m | Calibre 8500 Co-Axial | Black Dial 231.10.39.21.01.001

Omega Seamaster Aqua Terra 150m | Calibre 8500 Co-Axial | Black Dial 231.10.39.21.01.001

Aqua Terra 150m features a black dial and Calibre 8500 movement, housed in a 38.5mm case.

  • Dial color: black
  • Bracelet length: 7.25 inches
Posted at
Jan 3, 2026, 12:29 PM
Active
[WTS] Omega Seamaster Aqua Terra 150m | Calibre 8500 Co-Axial | 231.10.39.21.06.001

Omega Seamaster Aqua Terra 150m | Calibre 8500 Co-Axial | 231.10.39.21.06.001

This Omega Seamaster Aqua Terra features a Calibre 8500 Co-Axial movement and is water resistant up to 150m.

  • Calibre: Calibre 8500 Co-Axial
  • Bracelet length: 7.25 inches
  • Case size: 38.5mm
Posted at
Jan 3, 2026, 12:25 PM
Active
[WTS] Omega Seamaster Aqua Terra 150m | Calibre 8500 Co-Axial | 231.10.39.21.01.001

Omega Seamaster Aqua Terra 150m | Calibre 8500 Co-Axial | 231.10.39.21.01.001

This Omega Seamaster Aqua Terra features a Calibre 8500 Co-Axial movement, a 38.5mm case, and a 7.25 inch bracelet.

  • Case size: 38.5mm diameter
  • Water resistance: 150m
Posted at
Jan 3, 2026, 11:36 AM
Active
[WTS] Omega Aqua Terra 36mm 2504.50 Full Set for $2680 shipped!

Omega Aqua Terra 36mm 2504.50 Full Set for $2680 shipped!

Omega - 2504.50 · $2,680
The Omega Aqua Terra 2504.50 is a tasteful everyday watch that perfectly blends the simple time and date function with understated elegance. The watch features a glossy black dial, compact case, polished hands and markers, making it suitable for various occasions from diving to dining.

  • Condition: Excellent condition
  • Movement: Omega Calibre 2500B Co-Axial Automatic, beats at 28800bph
  • Dimensions: 36mm wide and 44mm lug to lug diameter
  • Bracelet notes: minor marks on the fixed bars causing circle dots to protrude on the sides
Posted at
Jan 3, 2026, 9:47 AM
Active
[WTS] OMEGA Seamaster Aqua Terra Worldtimer "Summer Blue" Ref. 220.10.43.22.03.002 - ULTIMATE SET!

OMEGA Seamaster Aqua Terra Worldtimer "Summer Blue" Ref. 220.10.43.22.03.002 - ULTIMATE SET!

OMEGA - 220.10.43.22.03.002 · $10,250
The OMEGA Seamaster Aqua Terra Worldtimer is a sophisticated travel companion that features a 43mm stainless steel case, dial with laser-ablated texture, 24-hour glass ring, and powered by the Master Chronometer Calibre 8938.

  • Condition: [VERY GOOD] Some light scratches on case and bracelet.
  • Case size: 43mm diameter
  • Bracelet size: ~7"
Posted at
Jan 3, 2026, 4:25 AM
Active
[WTS] OMEGA Seamaster Aqua Terra 150M Terracotta Ref. 220.10.38.20.13.003 - ULTIMATE SET!

OMEGA Seamaster Aqua Terra 150M Terracotta Ref. 220.10.38.20.13.003 - ULTIMATE SET!

The OMEGA Seamaster Aqua Terra Ref. 220.10.38.20.13.003 features a Terracotta dial, symmetrical case design and rhodium-plated hands.

  • Condition: UNWORN
  • Case size: 38mm
  • Bracelet length: ~7 inches pre-sized
Posted at
Jan 3, 2026, 3:31 AM
Active
[WTS] Omega Seamaster Aqua Terra Black Lacquer 41mm | Day 9/12 | 12 Days of Christmas🎄

Omega Seamaster Aqua Terra Black Lacquer 41mm | Day 9/12 | 12 Days of Christmas🎄

Omega - 22010412101002 · $4,900
The Omega Aqua Terra 41 is a versatile watch that embodies quiet strength and everyday balance, designed for real life with a high-gloss black dial and exceptional wearability.

  • Movement: Omega Co-Axial Master Chronometer calibre 8900 automatic
  • Case size: 41mm
  • Material: stainless steel
Posted at
Jan 2, 2026, 10:09 PM
Active
[WTS] Omega Aqua Terra 41mm - Ref. 220.13.41.21.03.003

Omega Aqua Terra 41mm - Ref. 220.13.41.21.03.003

This Omega Aqua Terra was inherited from a serious watch collector and is being sold to add a white-dial diver to the owner's collection.

  • Condition: Excellent
  • Serial number verified by omega boutique: true
  • Omega service eligibility: true
Posted at
Jan 2, 2026, 9:31 PM
Active