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.

Buy Now on Jomashop

This is an affiliate link

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 Seamaster Aqua Terra 38.5MM “Blue Teak” 231.10.39.21.03.002 | 2020 Box and Papers

Omega - 231.10.39.21.03.002 · $3,999

2020 Omega Seamaster Aqua Terra 38.5MM 'Blue Teak' in excellent condition, with very slight wear.

Condition: Excellent Pre-Owned Condition
Service history: Unknown
Accuracy: +12 seconds per day
Amplitude: 340+

Posted at

Feb 24, 2026, 9:43 PM

Active

View listing on r/WatchExchange

Omega Aqua Terra 38m 4$250

Omega - Aqua Terra 38m 4$250 · $4,250

Less than a year old Omega Aqua Terra for sale, in good shape.

Condition: Good, with scratches on the crystal and a couple hairline scratches
Year of manufacture: less than a year old
Warranty: Jomashop warranty card
Box and accessories included: yes

Posted at

Feb 24, 2026, 1:56 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra 38mm Blue Dial Ref. 220.10.38.20.03.001 Full Set + Extras Very Good Condition

Omega - 220.10.38.20.03.001 · $4,350

For sale is an Omega Seamaster Aqua Terra, Ref: **220.10.38.20.03.001**, featuring the beautiful sunburst blue teak dial and stainless steel bracelet. This is a 2022 piece in very good overall condition, carefully worn and well maintained.

Condition: Very good
Diameter: 38mm
Set includes: Double box (inner & outer),Manuals,3 Omega cards (Pictograms, International Warranty, Master Chronometer),Omega presentation box,Omega white tag,Additional links for bracelet,AM leather strap,Omega travel case

Posted at

Feb 23, 2026, 11:19 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra 150m | Master Co-Axial | 41.5mm | 231.10.42.21.03.003 Blue

Omega - 231.10.42.21.03.003 · $3,350

This Omega Seamaster Aqua Terra Master Co-Axial features a blue dial and 41.5mm case size.

Case Size: 41.5mm
Bracelet Length: 7.25 inches

Posted at

Feb 23, 2026, 5:11 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra 150M 38.5mm Blue “Teak” Dial - James Bond Spectre| Ref.231.10.39.21.03.002 | Full Set | Mint Condition

Omega - 231.10.39.21.03.002 · $4,150

The Omega Seamaster Aqua Terra 150M reference 231.10.39.21.03.002 is a versatile watch that embodies the perfect blend of sportiness and refinement, featuring a stainless-steel case, bracelet with alternating brushed and polished surfaces, and a blue 'Teak-Concept' dial inspired by luxury sailboats.

Condition: Mint Condition
Case size: 38.5mm
Water resistance: 150m
Movement: Omega Co-Axial calibre 8500 (twin-barrel automatic)

Posted at

Feb 23, 2026, 1:33 AM

Active

View listing on r/WatchExchange

Omega Aqua Terra 2015 38.5mm 231.10.39.21.02.001 B&P - repost

Omega - 231.10.39.21.02.001 · $3,100

Aqua Terra 2015 model with a 38.5mm case, suitable for everyday wear.

Condition: Excellent condition
Size: 38.5mm diameter

Posted at

Feb 22, 2026, 12:53 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra – ‘Blue Wave’ – Gold Accents – Complete

Omega - 23110422103006 · $5,250

A striking Aqua Terra released for a very short period in limited production, featuring a blue dial with wave pattern and 18K yellow gold hands and indexes.

Condition: Excellent all-around condition
Case size: 41.5mm diameter
Bracelet material: stainless steel
Movement type: Omega Master Co-Axial calibre 8500

Posted at

Feb 22, 2026, 10:24 AM

Active

View listing on r/WatchExchange