Omega Aqua Terra Seamaster Aqua Terra 150M Co-Axial 34 Stainless Steel / Diamond / MOP

Reference 231.18.34.20.55.001

Omega Seamaster Aqua Terra 150M Co-Axial 34 Stainless Steel / Diamond / MOP

About this watch

The Omega Seamaster Aqua Terra 231.18.34.20.55.001 is a masterpiece of luxury watchmaking, blending elegance with precision in a stunning package. Crafted from stainless steel and adorned with diamond accents, this 34mm timepiece exudes sophistication and refinement. The Mother of Pearl dial shines with an iridescent quality, while the gem-set indexes add a luxurious touch. Powered by the Omega caliber 8521 movement, this watch boasts accurate timekeeping and a remarkable power reserve of 50 hours. With its robust stainless steel case and scratch-resistant sapphire crystal, it's built to withstand the elements. Whether you're swimming, snorkeling, or just enjoying everyday wear, this Aqua Terra is the perfect companion. Its versatile design effortlessly transitions from casual to formal occasions, making it a staple in any wardrobe.

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Key Features

Omega caliber 8521 movement
Mother of Pearl dial with gem-set indexes
Water resistance up to 150 meters
Automatic winding and Co-Axial escapement for accurate timekeeping
Scratch-resistant sapphire crystal
Robust stainless steel case
50-hour power reserve

Specifications

Brand

Omega

Family

Aqua Terra

Model

Seamaster Aqua Terra 150M Co-Axial 34 Stainless Steel / Diamond / MOP

Reference

231.18.34.20.55.001

Movement

8521

Movement Features

Hours, Minutes, Seconds
Date
Chronometer, Co-Axial Escapement

Case

Stainless Steel 34mm

Dial Color

White

Crystal

Sapphire

Water Resistance

150

Current Listings

Omega Aqua Terra Quartz 38.5mm Grey Dial 4654 231.10.39.60.06.00 $1,700

Omega - 4654 231.10.39.60.06.00 · $1,700

A Omega Seamaster Aqua Terra Quartz with a grey dial and 38.5mm case size, available for sale in full set with box and papers.

Condition: Full set, recently polished
Case Size: 38.5mm
Movement Type: Quartz

Posted at

Oct 18, 2025, 2:24 AM

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Omega Aqua Terra 38.5 Quartz Second Gen White 231.10.39.60.02.001 $1,700

Omega - 231.10.39.60.02.001 · $1,700

This Omega Aqua Terra Second Gen features a white dial and quartz movement. The watch has been recently polished to look like new, with a 38.5mm case size suitable for an 18.5cm wrist.

Condition: like new
Case Size: 38.5mm
Movement Type: Quartz

Posted at

Oct 17, 2025, 10:09 PM

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Omega Seamaster Aqua Terra 39mm 2503.50 $2200

Omega - 2503.50 · $2,200

This Omega Seamaster Aqua Terra 39mm is a stylish and functional watch that features a clean crystal and fits about an 18cm wrist.

Condition: Excellent, little signs of use
Case size: 39mm
Wrist size: fits about 18cm

Posted at

Oct 17, 2025, 9:10 PM

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Omega Aqua Terra Co-Axial - FULLY SERVICED this week! - $2,599 Shipped!

Omega - 2503.30 · $2,599

This is the classic 39mm Omega Aqua Terra featuring a silver dial and Caliber 2500 Co-Axial movement. The watch has just undergone a complete service and is running accurately.

Condition: Excellent with minor mark on left case side
Movement: Caliber 2500 Co-Axial
Case size: 39mm diameter
Water resistance: null

Posted at

Oct 17, 2025, 1:08 PM

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Unworn and unfitted Omega Seamaster Aqua Terra 150M 41mm steel on steel - bought Aug 2025 [warranty start date]

Omega - 220.10.41.21.03.001 · $6,500

This Omega Seamaster Aqua Terra 150M is an automatic watch with a stainless steel case and sapphire crystal.

Condition: mint condition, unworn
Movement caliber: 8900
Water resistance depth rating: 150m

Posted at

Oct 16, 2025, 7:54 PM

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Omega Seamaster Aqua Terra - 36mm - 2504.80

Omega - 2504.80 · $2,595

The Omega Seamaster Aqua Terra features a stunning navy blue sunburst dial and is powered by Omega's innovative Co-Axial automatic movement.

Condition: Excellent overall condition with minimal wear
Case Size: 36.2mm diameter
Crystal Type: Domed sapphire crystal with anti-reflective coating

Posted at

Oct 16, 2025, 1:17 PM

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Omega Aqua Terra 8800 - 38mm - Lacquer Black - 220.10.38.20.01.004 ( new )

Omega - 220.10.38.20.01.004 · $5,750

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

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Omega Seamaster Aqua Terra Green 41mm

Omega - 220.10.41.21.10.001 · $4,200

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

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Omega Seamaster Aqua Terra Co-Axial White Blue Stainless Steel MINT 2503.33.00

Omega - Aqua Terra Co-Axial White Blue Stainless Steel 2503.33.00 · $3,410

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

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