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 Seamaster Aqua Terra 231.10.39 38.5mm Quartz Grey Teak

Omega - 231.10.39 · $1,690

Up for sale is my great condition Omega Seamaster Aqua Terra 231.10.39, a 38.5mm quartz movement watch with a steel case and original steel Omega bracelet.

Condition: Good condition, minimal marks/hairlines on the case and sapphire crystal scratch
Case size: 39mm diameter
Water resistance: 150m depth rating
Movement: Calibre OMEGA 4564 quartz

Posted at

Jan 1, 2026, 8:31 PM

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Omega Seamater Aqua Terra 38mm

Omega - Aqua Terra 38mm · $4,250

The Omega Aqua Terra 38mm is a well-maintained timepiece, featuring a sleek blue rubber strap and the added layer of scratch protection provided by the Aqua Terra 38mm Watch Protection Film.

Condition: good condition
Bracelet: metal bracelet, OEM
Strap: blue StrapsCo rubber strap
Box And Accessories: comes with box, tag, another set of film, and tweezers

Posted at

Dec 31, 2025, 3:17 PM

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Omega Aqua Terra small seconds on OEM rubber and OEM bracelet

Omega - Aqua Terra small seconds · $4,525

Selling an Omega Aqua Terra small seconds in blue/grey color, coming on OEM rubber and bracelet. It's sold condition with some minor flaws.

Condition: Terrific, some slight scratches
Bracelet Type: OEM
Warranty Status: factory warranty left (undated card dated 2022)
Wrist Size Fit: fits loosely on a 7.5" wrist

Posted at

Dec 30, 2025, 4:31 PM

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2025 Omega Seamaster Aqua Terra 38mm 220.10.38.20.13.003 Red Dial - $5,400

Omega - 220.10.38.20.13.003 · $5,400

The Omega Seamaster Aqua Terra features a 38mm stainless steel case and terracotta red dial, with a 150m water resistance.

Condition: Excellent
Material: Stainless Steel
Size: 8.25in (Full Links)
Depth rating: 150m

Posted at

Dec 30, 2025, 2:40 PM

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Omega Aqua Terra 36 black

Omega - Aqua Terra 36 · $3,150

This Omega Aqua Terra 36 is a full set with box and paper, including double eBay authentication. It has an original bracelet with an upgraded Omega clasp and two additional aftermarket bracelets.

Condition: Excellent condition
Bracelet Options: Original + Aftermarket President + Forstner flat link

Posted at

Dec 29, 2025, 8:04 PM

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Omega Seamaster Aqua Terra Worldtimer | 220.10.43.22.03.001 | Blue Dial | 43mm | Full Set

Omega - 220.10.43.22.03.001 · $6,900

The Omega Aqua Terra Worldtimer features a laser ablated world map dial and is powered by the Master Chronometer Worldtimer movement, allowing for global time tracking while being wearable on the wrist.

Condition: Very good
Case size: 43mm diameter
Bracelet condition: minor hairlines consistent with careful use

Posted at

Dec 29, 2025, 11:45 AM

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Omega Seamaster Aqua Terra 231.10.39 38.5mm Quartz Grey Teak

Omega - 231.10.39 · $1,690

Up for sale is a well-maintained Omega Seamaster Aqua Terra with a quartz movement and a 38.5mm steel case.

Condition: great condition, minimal marks/hairlines on the case
Case size: 39mm diameter
Movement type: quartz
Water resistance: 150m

Posted at

Dec 28, 2025, 8:02 PM

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Omega Seamaster Aqua Terra 150M 41mm (220.32.41.21.03.001) 2025 Turquoise Dial

Omega - 220.32.41.21.03.001 · $6,700

The Omega Seamaster Aqua Terra 150M 41mm features a stainless-steel case with a brushed ceramic bezel and a wave-edged screw-in caseback, housing the Co-Axial Master Chronometer caliber 8900. The watch boasts a mesmerizing turquoise dial with black gradient effect and facetted hands.

Condition: excellent plus condition
Case size: 41mm diameter
Water resistance: 150m water resistant

Posted at

Dec 27, 2025, 10:37 PM

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View listing on r/WatchExchange