Omega Aqua Terra Seamaster Aqua Terra 150M Master Co-Axial Stainless Steel / Red Gold / MOP / Bracelet

Reference 231.20.34.20.55.001

Omega Seamaster Aqua Terra 150M Master Co-Axial Stainless Steel / Red Gold / MOP / Bracelet

About this watch

The Omega Seamaster Aqua Terra 150M Master Co-Axial is a masterpiece of luxury watchmaking, boasting an elegant design, impressive functionality, and precision. The stunning Mother of Pearl dial shimmers beautifully, reflecting light with a subtle allure. Crafted from a combination of Sedna Gold and stainless steel, the 34mm round case exudes a luxurious feel that's both robust and refined. Notable features include gem-set indexes adding a touch of glamour, arrow-shaped hands ensuring effortless time-telling, and an automatic Omega caliber 8520 movement with Co-Axial escapement reducing friction for long-term accuracy. With a water resistance of 150 meters, this watch can handle the demands of water sports or everyday wear. The sapphire glass provides an extra layer of protection, while the open case back showcases the intricate workings of the movement. Wearing the Aqua Terra is a joy, with its comfortable stainless steel bracelet and secure clasp. This versatile timepiece effortlessly transitions from formal to casual settings, making it the perfect accessory for any occasion.
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Key Features

  • Omega caliber 8520 automatic movement
  • Co-Axial escapement for reduced friction
  • Mother of Pearl (MOP) dial with gem-set indexes

Specifications

Brand
Omega
Family
Aqua Terra
Model
Seamaster Aqua Terra 150M Master Co-Axial Stainless Steel / Red Gold / MOP / Bracelet
Reference
231.20.34.20.55.001
Movement
8520
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
34mm
Dial Color
White
Crystal
Sapphire
Water Resistance
150

Current Listings

[WTS] 2025 Omega Seamaster Aqua Terra 150M 38mm Steel Blue Dial 220.10.38.20.03.001 Full Set

2025 Omega Seamaster Aqua Terra 150M 38mm Steel Blue Dial 220.10.38.20.03.001 Full Set

Omega - 220.10.38.20.03.001 · $5,300
2025 Omega Seamaster Aqua Terra 150M 38mm Steel Blue Dial watch is being sold as a full set with original accessories. It features an automatic mechanical movement.

  • Condition: Nice Preowned Condition with Some Light Scratches On The Case, Bezel and Bracelet
  • Case dimensions: 38mm diameter
  • Bezel material: steel
  • Dial color: blue teak
Posted at
May 13, 2026, 7:33 PM
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[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

Omega - 220.10.41.21.03.006 · $5,850
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
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[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
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[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
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[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

Omega - 231.10.39.21.06.001 · $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
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[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
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[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
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[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

Omega - 231.10.39.21.02.002 Cal 8500 · $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
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[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

Omega - 231.10.39.21.02.002 · $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
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