Omega Aqua Terra Seamaster Aqua Terra 150M Master Co-Axial 34 Sedna Gold / Diamond / MOP / Bracelet

Reference 231.55.34.20.55.003

About this watch

The Omega Seamaster Aqua Terra 150M Master Co-Axial 34 Sedna Gold is a masterpiece of watchmaking, boasting exquisite craftsmanship and innovative technology. This stunning timepiece features a unique Sedna Gold alloy, Mother of Pearl dial, and gem-set indexes and bezel, exuding luxury and warmth. The round shape and elegant bracelet ensure a comfortable fit for any wrist size, making it perfect for both casual and formal settings. With a water resistance of 150 meters, this watch is built for adventure, handling splashes, swimming, and snorkeling with ease. At its core lies the Omega Caliber 8521 movement, featuring a Co-Axial Escapement that improves precision, stability, and durability. The free-sprung balance system with a silicon balance-spring enhances accuracy, making it a chronometer you can trust. With automatic winding in both directions and a power reserve of 50 hours, this watch is always ready to go. Its luxurious feel matches the stunning exterior, giving you a glimpse into its intricate workings through the open case back.
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MSRP: $37,900
Market Price: $13,381

Key Features

  • Sedna Gold alloy
  • Mother of Pearl dial
  • Gem-set indexes and bezel
  • Co-Axial Escapement movement
  • Automatic winding in both directions
  • 50-hour power reserve
  • 150-meter water resistance

Specifications

Brand
Omega
Family
Aqua Terra
Model
Seamaster Aqua Terra 150M Master Co-Axial 34 Sedna Gold / Diamond / MOP / Bracelet
Reference
231.55.34.20.55.003
Movement
8521
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
Sedna Gold 34mm
Dial Color
White
Crystal
Sapphire
Water Resistance
150

Current Listings

[WTS] Omega Aqua Terra Quartz 38.5mm Grey 1538 231.10.39.61.06.001

Omega Aqua Terra Quartz 38.5mm Grey 1538 231.10.39.61.06.001

A well-maintained Omega Aqua Terra Quartz in Grey, measuring 38.5mm in diameter.

  • Condition: Good condition with little signs of use
  • Wrist size: 18.5cm
  • Shipping from: Singapore
Posted at
Feb 9, 2026, 10:18 PM
Active
[WTS] Omega Seamaster Aqua Terra 150m | Master Co-Axial | 41.5mm | 231.10.42.21.03.003 Blue

Omega Seamaster Aqua Terra 150m | Master Co-Axial | 41.5mm | 231.10.42.21.03.003 Blue

A Omega Seamaster Aqua Terra Master Co-Axial in blue, featuring a 41.5mm case and 7.25 inch bracelet.

  • Case Diameter: 41.5mm
  • Bracelet Length: 7.25"
Posted at
Feb 9, 2026, 9:28 PM
Active
[WTS] Omega Seamaster Aqua Terra Silver Dial - 2504.30 - 36mm- $2,295 Shipped ✈️

Omega Seamaster Aqua Terra Silver Dial - 2504.30 - 36mm- $2,295 Shipped ✈️

Omega - 2504.30 · $2,295
This Omega Seamaster Aqua Terra features a beautiful sunburst silver dial and comes in a compact 36mm case diameter. The watch is suitable for small wrists between 6.75 and 7 inches.

  • Condition: Very good condition
  • Case Diameter: 36mm
  • Movement: Omega Co-axial 2500
Posted at
Feb 9, 2026, 5:46 PM
Active
[WTS] Omega Seamaster Aqua Terra "Golf Edition" 41.5mm

Omega Seamaster Aqua Terra "Golf Edition" 41.5mm

This Omega watch is a unique 'Golf Edition' of the popular Aqua Terra model, sized at 41.5mm.

Posted at
Feb 9, 2026, 4:28 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