Omega Aqua Terra Seamaster Aqua Terra 150m Master Co-Axial 41.5 Yellow Gold / Champagne / Bracelet

Reference 231.50.42.21.08.001

About this watch

The Omega Aqua Terra 231.50.42.21.08.001 is a masterpiece of horology, boasting an exquisite yellow gold case paired with a luscious champagne dial. Its luxurious design and exceptional craftsmanship make it a timeless choice for watch enthusiasts. The Omega caliber 8501 movement is a marvel of engineering, certified by the COSC (Contrôle Officiel Suisse des Chronomètres) and featuring a Co-Axial escapement that reduces friction between parts, enhancing longevity and precision. With a water resistance of 150m, this watch can handle both land and sea adventures. Its versatility makes it perfect for any occasion, whether formal or casual. As an investment in craftsmanship, heritage, and durability, the Omega Seamaster Aqua Terra is worth every penny. This piece is not just about telling time; it's about making memories and enjoying the finer things in life.
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Key Features

  • Omega caliber 8501 movement
  • Yellow gold case with champagne dial
  • Sapphire glass for exceptional clarity
  • 150m water resistance for underwater adventures
  • Co-Axial escapement for reduced friction
  • Chronometer certified by COSC
  • Automatic winding for convenience

Specifications

Brand
Omega
Family
Aqua Terra
Model
Seamaster Aqua Terra 150m Master Co-Axial 41.5 Yellow Gold / Champagne / Bracelet
Reference
231.50.42.21.08.001
Movement
8501
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
Yellow Gold 41.5mm
Crystal
Sapphire
Water Resistance
150

Current Listings

[WTS] Omega Seamaster Aqua Terra Co-Axial - Turquoise Blue - 2025 Full Set - 220.10.41.21.03.006

Omega Seamaster Aqua Terra Co-Axial - Turquoise Blue - 2025 Full Set - 220.10.41.21.03.006

This Omega Seamaster Aqua Terra features a Turquoise Blue dial and is the 41mm version, presenting great value with its under warranty status until 2029.

  • Condition: mint condition
  • Warranty expiration date: 2029
  • Version: 41mm
Posted at
May 13, 2026, 6:59 PM
Active
[WTS] Omega Aqua Terra First Gen 2504.30 36mm Automatic $2,350

Omega Aqua Terra First Gen 2504.30 36mm Automatic $2,350

Omega - 2504.30 · $2,350
This is a first-generation Omega Aqua Terra, a 36mm automatic watch for sale. It has decent timegrapher numbers and fits about 18.5cm wrists.

  • Condition: Very minimal signs of use (recently polished)
  • Wrist size: fits about 18.5cm
  • Shipping from: Singapore
Posted at
May 13, 2026, 4:36 AM
Active
[WTS] Omega Seamaster Aqua Terra First Gen Quartz 36mm 2518.30 $1,450

Omega Seamaster Aqua Terra First Gen Quartz 36mm 2518.30 $1,450

Omega - 2518.30 · $1,450
Selling a first-generation Omega Seamaster Aqua Terra Quartz Watch with a 36mm case.

  • Condition: Very minimal signs of use, recently polished
  • 18.5cm: length of bracelet
Posted at
May 13, 2026, 4:23 AM
Active
[WTS] Omega Seamaster Aqua Terra 38.5mm | Ref. 231.10.39.21.06.001 | Cal. 8500 Co-Axial | Grey Teak Dial | $2,599

Omega Seamaster Aqua Terra 38.5mm | Ref. 231.10.39.21.06.001 | Cal. 8500 Co-Axial | Grey Teak Dial | $2,599

This Omega Seamaster Aqua Terra 150M Co-Axial is a stainless steel watch with a 38.5mm case, measuring in-house Caliber 8500 and featuring a grey teak-pattern dial.

  • Condition: great condition
  • Case diameter: 38.5mm
  • Movement caliber: Cal. 8500
  • Movement features: 39 jewels, 60-hour power reserve, 7Hz beat rate
Posted at
May 12, 2026, 10:14 PM
Active
[WTS] Omega Seamaster Aqua Terra 39mm | Ref. 2503.3 | Cal. 2500 Co-Axial Chronometer | Silver Dial | $2,199

Omega Seamaster Aqua Terra 39mm | Ref. 2503.3 | Cal. 2500 Co-Axial Chronometer | Silver Dial | $2,199

Omega - 2503.3 · $2,199
A timeless, understated piece that measures 39mm in stainless steel and is powered by Omega’s Caliber 2500 Co-Axial automatic movement, COSC-certified to +6/-4 seconds per day precision. The watch features a silver dial with raised index hour markers and luminous hands.

  • Condition: great condition
  • Material: stainless steel
  • Water Resistance: 150m
  • Movement: Caliber 2500 Co-Axial automatic movement
Posted at
May 12, 2026, 10:10 PM
Active
[WTS] Omega Aqua Terra 2503.80 - 39mm - Blue Automatic - Price Reduced

Omega Aqua Terra 2503.80 - 39mm - Blue Automatic - Price Reduced

Omega - 2503.80 · $2,695
Additional Details: Omega Seamaster Aqua Terra Blue Dial Automatic. A timegrapher photo is included, and wrist size is shown in the photo reel.

  • Condition: pre-owned, clean condition with light wear throughout
  • Size: 39mm diameter
Posted at
May 12, 2026, 9:44 PM
Active
[WTS] Omega Aqua Terra 231.10.39 Cal 8500 38.5 mm Master Co-Axial Box and Papers - $3,250

Omega Aqua Terra 231.10.39 Cal 8500 38.5 mm Master Co-Axial Box and Papers - $3,250

Up for sale is my Omega Aqua Terra 231.10.39.21.02.002 Cal 8500, measuring at 39mm with a Calibre OMEGA 8500 movement.

  • Condition: 8.9/10, great condition with minimal marks on the case and bracelet
  • Case size: 39mm diameter
  • Movement: Calibre OMEGA 8500
  • Bracelet material: steel
Posted at
May 11, 2026, 10:10 PM
Active
[WTS] Omega Aqua Terra 231.10.39 Cal 8500 38.5 mm Master Co-Axial - $2,950

Omega Aqua Terra 231.10.39 Cal 8500 38.5 mm Master Co-Axial - $2,950

Up for sale is my great condition Omega Aqua Terra 231.10.39.21.02.002 Cal 8500. This watch measures at 39mm and has an Calibre OMEGA 8500 movement.

  • Condition: Great condition, minimal marks on the case and bracelet
  • Movement: Calibre OMEGA 8500
  • Case size: 39mm diameter
  • Bracelet type: Original Omega steel bracelet, replaced with OEM all brushed version
Posted at
May 11, 2026, 10:06 PM
Active
[WTS] Omega Seamaster Aqua Terra 231.10.39.21.01.001 Black Teak 38.5mm  - $2,790

Omega Seamaster Aqua Terra 231.10.39.21.01.001 Black Teak 38.5mm - $2,790

Up for sale is my great condition Omega Seamaster Aqua Terra 231.10.39.21.01.001. This watch measures at 38.5mm and has an automatic Omega Calibre 8500 movement.

  • Condition: Very good condition for its age, minimal marks/hairlines
  • Case Size: 38.5mm diameter
  • Movement: Omega Calibre 8500, automatic
Posted at
May 11, 2026, 10:01 PM
Active