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

Reference 231.55.34.20.55.003

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

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

Omega Aqua Terra 231.10.39 Cal 8500 39mm - $2,690

Omega - 231.10.39 Cal 8500 · $2,690

Up for sale is my Omega Aqua Terra 231.10.39 Cal 8500, a watch with a 39mm steel case on original Omega steel bracelet and an OMEGA 8500 movement.

Condition: Great condition, minor marks on the case and crystal
Case size: 39mm diameter
Movement: Calibre OMEGA 8500
Bracelet material: Steel

Posted at

Apr 5, 2026, 10:27 PM

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Omega Seamaster Aqua Terra 2504.50 - $2,490

Omega - 2504.50 · $2,490

Up for sale is my Omega Seamaster Aqua Terra 2504.50.00, a 36mm automatic watch with a steel case and original Omega Steel bracelet.

Condition: Very good condition
Case Size: 36mm diameter
Movement Type: automatic

Posted at

Apr 5, 2026, 10:19 PM

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Omega Aqua Terra 231.10.39 Cal 8500, White Teak 39mm, Box and Papers - $2,750

Omega - 231.10.39 Cal 8500 · $2,750

Up for sale is my Omega Aqua Terra 231.10.39 Cal 8500, a 39mm watch with an OMEGA 8500 movement.

Condition: Great condition with minimal marks
Case size: 39mm diameter
Movement type: Calibre OMEGA 8500
Bracelet material: Steel

Posted at

Apr 5, 2026, 9:52 PM

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Omega Aqua Terra 2503.30 39mm Champagne Dial Box and Papers - $2,390

Omega - 2503.30 · $2,390

Up for sale is my great condition Omega Seamaster 2503.30, measuring at 39mm with an automatic Omega Calibre 2500 movement.

Condition: Very good condition for its age
Movement: Omega Calibre 2500
Bracelet material: Steel
Case size: 39mm diameter

Posted at

Apr 5, 2026, 9:40 PM

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2026 Omega Aqua Terra 150M 38mm White/silver 1/26 Ref# 220.10.38.20.02.001

Omega - 220.10.38.20.02.001 · $4,799

2026 Omega Aqua Terra 150M 38mm White/silver, featuring a silvery white dial with Teak pattern and automatic self-winding movement.

Condition: 9.5/10, minor scratches possibly not visible to the eye
Dial color: silvery white
Movement caliber: 8800 METAS Caliber
Water resistance: 150M

Posted at

Apr 4, 2026, 10:00 AM

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Omega Seamaster Aqua Terra 150M 38mm Grey Teak Dial | Quartz | Discontinued | Full Set (Travel Case)

Omega - 231.10.39.61.06.001 · $2,590

The Omega Seamaster Aqua Terra 38mm features a grey teak-concept dial and is powered by an Omega quartz movement, offering true grab-and-go convenience.

Condition: Excellent overall condition with only light wear
Movement: Quartz (Caliber 1538)
Case size: 38mm
Dial: Grey 'teak concept'

Posted at

Apr 4, 2026, 4:18 AM

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Omega Aqua Terra Shades Sandstone - 38mm - 220.10.38.20.09.001 - $3,795 Shipped ✈️

Omega - 220.10.38.20.09.001 · $3,795

The Omega Seamaster Aqua Terra Shades 'Sandstone' Dial is a stylish watch featuring a stunning dial and comfortable design.

Condition: lightly pre-owned with light, normal wear throughout
Size: 38mm
Movement Accuracy: +1 second/day
Amplitude: 300+

Posted at

Apr 3, 2026, 9:49 PM

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OMEGA Seamaster Aqua Terra Worldtimer "Summer Blue" Ref. 220.10.43.22.03.002 - ULTIMATE SET! 🔥$9,600🔥

OMEGA - 220.10.43.22.03.002 · $9,600

The OMEGA Seamaster Aqua Terra Worldtimer Ref. 220.10.43.22.03.002 is a sophisticated travel companion that puts the world on your wrist, featuring a 43mm stainless steel case and a dial with laser-ablated texture, surrounded by a 24-hour glass ring indicating day and night.

Condition: VERY GOOD - Some light scratches on case and bracelet.
Case size: 43mm diameter
Bracelet length: ~7 inches pre-sized

Posted at

Apr 3, 2026, 8:52 PM

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OMEGA Seamaster Aqua Terra 150M Terracotta Ref. 220.10.38.20.13.003 - ULTIMATE SET! 🔥$6,100🔥

OMEGA - 220.10.38.20.13.003 · $6,100

The OMEGA Seamaster Aqua Terra Ref. 220.10.38.20.13.003 features a Terracotta dial, 38mm stainless steel case, and Co-Axial Master Chronometer Calibre 8800.

Condition: UNWORN
Case size: 38mm
Water resistance: 150m
Bracelet length: ~7 inches pre-sized

Posted at

Apr 3, 2026, 8:49 PM

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