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 (7/25 warranty) full kit $4300

Omega - Aqua Terra · $4,300

This Omega Aqua Terra features a Teak designed blue dial, in-house 8900 movement, and comes with a full kit including boxes, manual, warranty card, and more.

Condition: Excellent, Mint condition with light scratches around the bezel
Movement: In-house 8900 movement
Diameter: 41mm
Water Resistance: 150m

Posted at

Nov 2, 2025, 1:42 PM

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Omega Seamaster Aqua Terra Shades

Omega - 220.10.38.20.10.004 · $5,500

This Omega Aqua Terra Shades features a 38mm case, sun-brushed lavender dial, and an automatic master chronometer certified movement.

Condition: Very good
Case diameter: 38mm
Bracelet material: metal (updated version with quick extension)

Posted at

Nov 1, 2025, 11:59 AM

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Omega Seamaster Aqua Terra “PyeongChang 2018” 522.10.42.21.03.001 – 41.5 mm Co-Axial – Box and Papers 🎯 – $3,699 Shipped

Omega - 522.10.42.21.03.001 · $3,699

This is the Omega Seamaster Aqua Terra “PyeongChang 2018” Limited Edition, released to commemorate the 2018 Winter Olympics in South Korea. It features a blue teak dial and a stainless steel case with 150m water resistance, powered by the Co-Axial Master Chronometer Calibre 8500.

Condition: Excellent overall with faint surface wear from light use
Case size: 41.5mm
Water resistance: 150m
Depth rating: 150m water resistance

Posted at

Oct 31, 2025, 10:01 PM

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Omega Seamaster Aqua Terra 41 Black (Ref 220.10.41.21.01.001)

Omega - 220.10.41.21.01.001 · $4,200

This Omega Seamaster Aqua Terra features a black 'teak-deck' patterned dial and a 41mm stainless steel case with a transparent sapphire caseback, making it a stylish and functional watch for everyday wear and light water activities.

Condition: Excellent Condition
Movement: Calibre 8900 - METAS-certified, anti-magnetic up to 15,000 gauss, 60-hour power reserve
Case size: 41 mm diameter
Water resistance: 150 m / 500 ft depth rating

Posted at

Oct 31, 2025, 8:41 PM

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Omega Seamaster Aqua Terra 41mm (220.12.41.21.02.002) – Full Set (Sept 2025)

Omega - 220.12.41.21.02.002 · $5,500

This Omega Seamaster Aqua Terra 41mm is a brand new, unused watch with a white dial and orange accent. It comes with the full set, including OEM rubber strap, inner/outer boxes, cards, and manual.

Condition: Like new with minimal signs of wear
Warranty: 5-year full warranty from Omega
Set included: Full set including inner/outer boxes, three cards (Pictogram, Master Chronometer, Warranty), and manual

Posted at

Oct 31, 2025, 2:54 PM

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(2008) Full Set Omega Seamaster Aqua Terra 2504.30 Silver Dial Automatic First Generation 36mm $2,600

Omega - 2504.30 · $2,600

A first generation 2008 Omega Seamaster Aqua Terra in excellent condition with a silver dial and automatic movement.

Condition: Freshly polished, recently serviced
Case size: 36mm
Diameter: 36mm

Posted at

Oct 31, 2025, 5:12 AM

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Omega Seamaster Aqua Terra 2504.50 36mm Black Dial $2400

Omega - 2504.50 · $2,400

The Omega Seamaster Aqua Terra is a luxury watch featuring a black dial and 36mm case size.

Condition: Excellent
Movement: 2500c
Case Size: 36mm

Posted at

Oct 31, 2025, 3:48 AM

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Omega Turquoise Aqua Terra 38mm Unworn 12/24 Warranty

Omega - 220.10.38.20.03.005 · $6,000

This Omega Seamaster Aqua Terra features a stunning turquoise gradient dial and is powered by the excellent Master Chronometer movement, making it a fantastic everyday watch.

Condition: Excellent, unworn
Movement Type: Master Chronometer Calibre 8800
Power Reserve: 55 hours
Water Resistance: 150m (500ft)

Posted at

Oct 30, 2025, 4:03 PM

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