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

Reference 231.23.30.20.55.001

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

About this watch

The Omega Seamaster Aqua Terra 150M Co-Axial 30 (model 231.23.30.20.55.001) is a testament to Omega's reputation for luxury and performance, merging functionality with elegance. The watch features a stunning mother-of-pearl dial, reliable automatic movement, and impressive water resistance of 150 meters. The combination of stainless steel and red gold creates a striking contrast, while the mother-of-pearl dial adds an element of luxury and sophistication. With its Co-Axial escapement and chronometer certification, this watch is built to perform beautifully for years to come. Whether you're diving, swimming, or simply caught in a rain shower, this watch is more than capable of handling various environments. The robust sapphire crystal adds an extra layer of protection against scratches, ensuring that your watch maintains its beauty over time. With a diameter of just 30 mm, the Omega Seamaster Aqua Terra is designed to fit comfortably on various wrist sizes, making it versatile enough to suit any occasion.
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Key Features

  • Omega caliber 8520 automatic movement
  • 150 meters water resistance
  • Mother-of-pearl dial with gem-set indexes and arrow-shaped hands
  • Stainless steel and red gold construction
  • Chronometer certification
  • Co-Axial escapement for reduced friction and increased longevity
  • Robust sapphire crystal for scratch protection

Specifications

Brand
Omega
Family
Aqua Terra
Model
Seamaster Aqua Terra 150M Co-Axial 30 Stainless Steel / Red Gold / MOP
Reference
231.23.30.20.55.001
Movement
8520
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
30mm
Dial Color
White
Crystal
Sapphire
Water Resistance
150

Current Listings

[WTS] Omega Seamaster Aqua Terra Small Seconds, 220.12.41.21.02.005, 2022, B&P, 41mm

Omega Seamaster Aqua Terra Small Seconds, 220.12.41.21.02.005, 2022, B&P, 41mm

Omega - 220.12.41.21.02.005 · $6,000
A 2022 Omega Seamaster Aqua Terra Small Seconds with a silver dial and tan color accents, in excellent condition.

  • Condition: Very good plus (VG+)
  • Case Size: 41mm
  • Year Of Manufacture: 2022
Posted at
May 25, 2026, 7:56 PM
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[WTS] Omega Seamaster Aqua Terra Grey Teak 38.5mm Automatic - 231.10.39.21.06.001

Omega Seamaster Aqua Terra Grey Teak 38.5mm Automatic - 231.10.39.21.06.001

Omega - 231.10.39.21.06.001 · $2,995
This Omega Seamaster Aqua Terra features a grey teak dial, automatic movement, and a 38.5mm case size, giving it a clean and versatile look.

  • Condition: Pre-owned, great condition with light wear throughout
  • Size: 38.5mm diameter
  • Wrist size: not specified
  • Depth rating: not specified
Posted at
May 25, 2026, 6:44 PM
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[WTS] Omega Seamaster Aqua Terra – Black Lacquer – 38mm – Recent Factory Service/Regulation

Omega Seamaster Aqua Terra – Black Lacquer – 38mm – Recent Factory Service/Regulation

Omega - 220.10.38.20.01.004 · $5,200
A 38mm Omega Seamaster Aqua Terra with a black lacquer dial is up for sale. This GADA piece has been recently serviced by Omega under factory warranty and comes with official paperwork. It features a polished bezel, crystal, and dial.

  • Condition: Overall good, honest condition with minor hairline scratches and surface scratches from desk wear.
  • Case Size: 38mm
  • Bezel Material: polished bezel
Posted at
May 25, 2026, 3:14 PM
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[WTS] Omega Seamaster Aqua Terra Quartz 38.5mm Grey Teak ref. 231.10.39.60.06.001

Omega Seamaster Aqua Terra Quartz 38.5mm Grey Teak ref. 231.10.39.60.06.001

Omega - 231.10.39.60.06.001 · $2,050
A Omega Seamaster Aqua Terra quartz watch with a dark grey vertical teak pattern dial, featuring a 38.5mm case size.

  • Condition: Great to excellent
  • Case Size: 38.5mm
  • Caliber: Cal. 4564
  • Crystal Condition: Excellent
Posted at
May 25, 2026, 10:24 AM
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[WTS] Omega Aqua Terra - 220.10.41.21.06.001 - Gray Blue Variant - Near Mint

Omega Aqua Terra - 220.10.41.21.06.001 - Gray Blue Variant - Near Mint

Omega - 220.10.41.21.06.001 · $4,445
Aqua Terra in Gray with blue accents, good condition and includes full kit.

  • Condition: Near mint with a few hairlines
  • Box Type: Brown outer box and inner Omega Wood Style box
  • Extras: Full kit, extra links, hang tag, two cards
Posted at
May 25, 2026, 9:40 AM
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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 · $3,250
This Omega Aqua Terra 231.10.39 Cal 8500 is a 39mm watch with an OMEGA 8500 movement.

  • Condition: Great condition, minimal marks on case and caseback
  • Case size: 39mm
  • Movement: Calibre OMEGA 8500
  • Bracelet material: Steel
Posted at
May 24, 2026, 9:54 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
This Omega Aqua Terra features a Calibre OMEGA 8500 movement, measuring 39mm in diameter. It has a steel case with an original Omega steel bracelet.

  • Condition: Great condition, 8.9/10 for case and bracelet
  • Movement: Calibre OMEGA 8500
  • Case size: 39mm
  • Bracelet type: Original Omega steel bracelet (replaced with OEM all brushed version)
Posted at
May 24, 2026, 9:52 PM
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[WTS] Omega Seamaster Aqua Terra 231.10.39.21.01.001 Black Teak 38.5mm - $2,590

Omega Seamaster Aqua Terra 231.10.39.21.01.001 Black Teak 38.5mm - $2,590

Omega - 231.10.39.21.01.001 · $2,590
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
  • Case size: 38.5mm
  • Movement: Automatic Omega Calibre 8500
  • Bracelet material: Steel
Posted at
May 24, 2026, 9:01 PM
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[WTS] Omega Seamaster Aqua Terra “Turquoise Shades” 41mm Reduced

Omega Seamaster Aqua Terra “Turquoise Shades” 41mm Reduced

Omega - 220.10.41.21.03.006 · $5,900
Up for sale is my Omega Seamaster Aqua Terra Shades in the stunning turquoise lacquer dial configuration, featuring a sunburst/turquoise gradient effect that shifts beautifully in different lighting.

  • Condition: Pretty good overall condition with normal signs of wear
  • Case size: 41mm
  • Movement: Omega Co-Axial Master Chronometer Caliber 8900
  • Power reserve: 60 Hours
Posted at
May 24, 2026, 5:55 PM
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