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

Reference 231.23.30.20.55.001

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 Worldtimer | Ref. 220.12.43.22.03.001 | 2024 | Full Set | Like New

Omega Seamaster Aqua Terra Worldtimer | Ref. 220.12.43.22.03.001 | 2024 | Full Set | Like New

This Omega Seamaster Aqua Terra Worldtimer features a striking blue dial with a laser-ablated globe at the center, surrounded by 24-hour and global city rings for simultaneous reading of time zones worldwide.

  • Condition: Like New
  • Case size: 43mm diameter
  • Dial color: blue
  • Water resistance: 150m depth rating
Posted at
Feb 7, 2026, 1:12 AM
Active
[WTS] Omega Seamaster Aqua Terra 150M “Spectre” Blue Dial – 41.5mm Ref: 231.10.42.21.03.003 Full Set 2020 Mint Condition

Omega Seamaster Aqua Terra 150M “Spectre” Blue Dial – 41.5mm Ref: 231.10.42.21.03.003 Full Set 2020 Mint Condition

This Aqua Terra 'Spectre' configuration features a strong 41.5mm case with a blue teak dial, powered by the reliable in-house Calibre 8500. It's suitable for daily wear and offers excellent magnetic resistance.

  • Condition: Excellent condition
  • Dial color: blue
  • Case size: 41.5mm
  • Water resistance: 150m
Posted at
Feb 6, 2026, 10:19 PM
Active
[wts] 2021 OMEGA SEAMASTER AQUA TERRA 150M
220.10.43.22.03.001

2021 OMEGA SEAMASTER AQUA TERRA 150M 220.10.43.22.03.001

This 2021 Omega Seamaster Aqua Terra features a 43mm stainless steel case, blue dial, and Calibre 8938 movement with a 60-hour power reserve. It has a water resistance of 150 meters.

  • Condition: Pre-owned, cosmetic condition: 9/10, fully functional
  • Case size: 43mm
  • Movement: Calibre 8938
  • Power reserve: 60 hours
Posted at
Feb 6, 2026, 6:35 PM
Active
[WTS] Omega Seamaster Aqua Terra 38 Green 220.12.38.20.10.001 MINT REDUCED

Omega Seamaster Aqua Terra 38 Green 220.12.38.20.10.001 MINT REDUCED

This Omega Seamaster Aqua Terra 38 Green is a high-end watch in mint condition, complete with box and papers.

  • Condition: Mint
  • Water Resistance: 30m
Posted at
Feb 6, 2026, 1:50 PM
Active
Omega Aqua Terra 8800 - 38mm - Lacquer Black - 220.10.38.20.01.004 ( new )

Omega Aqua Terra 8800 - 38mm - Lacquer Black - 220.10.38.20.01.004 ( new )

Up for sale is a brand new Omega Aqua Terra 8800 38mm with Lacquer Black Dial, reference # 220.10.38.20.01.004.

  • Condition: Brand new
  • Case size: 38mm
  • Movement type: Master Chronometer Movement
Posted at
Apr 3, 2025, 3:15 PM
Active
Omega Seamaster Aqua Terra Green 41mm

Omega Seamaster Aqua Terra Green 41mm

The Omega Seamaster Aqua Terra Green is a versatile watch suitable for daily wear, featuring a Master Chronometer certified calibre 8900 with 60 hours of power reserve and antimagnetic properties. It has an excellent bracelet and proportions.

  • Condition: Near-mint, 94-95%
  • Case size: 41mm x 47.9mm lug to lug
  • Thickness: 13.2mm
  • Power reserve: 60 hours
Posted at
Mar 31, 2025, 10:30 AM
Active
Omega Seamaster Aqua Terra Co-Axial White Blue Stainless Steel MINT 2503.33.00

Omega Seamaster Aqua Terra Co-Axial White Blue Stainless Steel MINT 2503.33.00

The Omega Seamaster Aqua Terra Co-Axial is a sport-ready watch with dress-worthy charm, featuring a white dial with blue accents and a stainless steel case with brushed and polished finishes.

  • Condition: Mint
  • Movement: Co-Axial
  • Case size: Not specified
  • Water resistance: Not specified
Posted at
Mar 25, 2025, 5:11 PM
Active
Omega Aqua Terra - Small Seconds - Slate - 220.12.41.21.03.005 ( excellent )

Omega Aqua Terra - Small Seconds - Slate - 220.12.41.21.03.005 ( excellent )

This Omega Aqua Terra 150M Small Seconds features a Slate Blue dial and is housed in a 41mm stainless steel case.

  • Condition: Excellent
  • Case material: Stainless Steel
  • Water resistance: 150m
Posted at
Mar 25, 2025, 3:13 PM
Active
Omega Aqua Terra 38 Shades Red Terracotta Box Papers Warranty

Omega Aqua Terra 38 Shades Red Terracotta Box Papers Warranty

The Omega Seamaster Aqua Terra 38 Shades Collection Watch features a 38mm stainless steel case with a terracotta dial and polished bezel on a stainless steel bracelet.

  • Condition: 96% Near Mint Condition
  • Case size: 38mm diameter
  • Water resistance: 150 meters/500 feet
Posted at
Mar 25, 2025, 1:55 AM
Active