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] 2023 Omega Seamaster Aqua Terra Silver Dial 41mm 220.10.41.21.02.001 - Full Set

2023 Omega Seamaster Aqua Terra Silver Dial 41mm 220.10.41.21.02.001 - Full Set

Omega - 220.10.41.21.02.001 · $10,900
2023 Omega Seamaster Aqua Terra Silver Dial 41mm, available for sale.

  • Case material: Stainless Steel
  • Bracelet material: Stainless Steel
Posted at
Mar 28, 2026, 2:12 PM
Active
[WTS] Omega Aqua Terra Ref 220.10.38.20.10.002 38mm Dial Bay Green

Omega Aqua Terra Ref 220.10.38.20.10.002 38mm Dial Bay Green

This Omega Aqua Terra is a 38mm watch with a Bay Green dial, in perfect working condition.

  • Condition: Excellent
  • Case size: 38mm
  • Water resistance: unknown
Posted at
Mar 27, 2026, 9:11 PM
Active
[WTS] 2023 Omega Seamaster Aqua Terra 150M 41mm 220.12.41.21.03.002 - Full Set

2023 Omega Seamaster Aqua Terra 150M 41mm 220.12.41.21.03.002 - Full Set

2023 Omega Seamaster Aqua Terra 150M 41mm, a luxury watch with features and details as described in the listing.

  • Year: 2023
  • Movement: Co-Axial Master Chronometer
  • Water resistance: 150m
Posted at
Mar 27, 2026, 4:30 PM
Active
[WTS] Omega Aqua Terra 2517.30 COMPLETE SET

Omega Aqua Terra 2517.30 COMPLETE SET

Omega - 2517.30 · $2,450
For sale is an Omega Aqua Terra 39mm quartz watch, sold as a complete set including links and warranty card.

  • Condition: Pre-owned (serviced)
  • Case Size: 39mm
  • Movement Type: quartz
Posted at
Mar 27, 2026, 4:11 PM
Active
[WTS] Omega Seamaster Aqua Terra 38.5mm 231.23.39.21.06.001 – Gold Bezel – Full Set – $5199

Omega Seamaster Aqua Terra 38.5mm 231.23.39.21.06.001 – Gold Bezel – Full Set – $5199

a luxury watch from Omega's Seamaster Aqua Terra collection, featuring a gold bezel and measuring 38.5mm in diameter.

  • Size: 38.5mm diameter
Posted at
Mar 27, 2026, 10:27 AM
Active
[WTS] Omega Aqua Terra 231.10.39.21.01.001 Cal 8500 38.5mm Black Teak - $3,250

Omega Aqua Terra 231.10.39.21.01.001 Cal 8500 38.5mm Black Teak - $3,250

Up for sale is Omega Aqua Terra 231.10.39 Cal 8500 with a Calibre OMEGA 8500 movement and a steel case on original Omega steel bracelet.

  • Condition: Great condition, minor marks on case and bracelet
  • Movement: Calibre OMEGA 8500
  • Case size: 38.5mm diameter
  • Bracelet material: Steel
Posted at
Mar 26, 2026, 10:35 PM
Active
[WTS] Omega Seamaster Aqua Terra 231.10.39 38.5mm Quartz Grey Teak - $1,890

Omega Seamaster Aqua Terra 231.10.39 38.5mm Quartz Grey Teak - $1,890

Omega - 231.10.39 · $1,890
Up for sale is my Omega Seamaster Aqua Terra 231.10.39, measuring at 39mm with a Calibre OMEGA 4564 quartz movement.

  • Condition: great condition, minimal marks/hairlines on the case
  • Movement: Calibre OMEGA 4564 quartz
  • Case size: 39mm
  • Water resistance: 150m
Posted at
Mar 26, 2026, 9:36 PM
Active
[WTS] Omega Aqua Terra Shades Sandstone - 38mm - 220.10.38.20.09.001

Omega Aqua Terra Shades Sandstone - 38mm - 220.10.38.20.09.001

This Omega Seamaster Aqua Terra Shades features a stunning 'Sandstone' dial and is available in 38mm size. It's a watch-only example that's been lightly used.

  • Condition: lightly pre-owned with light, normal wear throughout and small mark on crystal near 3 o'clock
  • Case Size: 38mm diameter
  • Movement Amplification: 300+ amplitude
  • Accuracy: +1 second/day
Posted at
Mar 26, 2026, 6:35 PM
Active
[WTS] 36mm Omega Seamaster Aqua Terra Quartz - Ref 2518.50 - $1900 SHIPPED

36mm Omega Seamaster Aqua Terra Quartz - Ref 2518.50 - $1900 SHIPPED

Omega - 2518.50 · $1,900
A 36mm Omega Seamaster Aqua Terra Quartz watch, powered by a Calibre OMEGA 1538 quartz movement.

  • Condition: Excellent condition
  • Case Size: 36mm diameter
  • Bracelet Length: up to 7"
  • Movement Type: quartz
Posted at
Mar 26, 2026, 3:27 PM
Active