Omega Aqua Terra Seamaster Aqua Terra 150M Co-Axial 34 Stainless Steel / Diamond / MOP
Reference 231.18.34.20.55.001
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 Silver Dial 220.10.38.20.02.001 B/P
The Omega Aqua Terra reference 220.10.38.20.02.001 is a 38mm variant with silver/white dial on bracelet, great size and versatile piece.
- Condition: Very good condition, minor surface wear on high polish areas (bracelet center links and bezel)
- Second Owner: true
- Size: 38mm
- Dial: silver/white

Omega Aqua Terra 8800 - 38mm - Blue Dial - 220.10.38.20.03.001 ( new / 2025 )
This Omega Aqua Terra 8800 is a brand new stainless steel watch with a 38mm case and blue dial, complete with all original boxes, papers, and warranty card.
- Condition: Brand new
- Case size: 38mm diameter
- Movement: Master Chronometer

2024 Omega Aqua Terra Ref. 220.12.41.21.03.001 with Box & Papers LNOS
The Omega Seamaster Aqua Terra 150M features a blue dial with a horizontal pattern, inspired by wooden boat decks, and is powered by Omega's Master Chronometer Calibre 8900. It has a 41mm stainless steel case, a comfortable blue rubber strap, and is water-resistant up to 150 meters.
- Condition: Like New
- Case Width: 41mm
- Movement: Automatic
- Depth Rating: 150m

Omega Aqua Terra 8900 - 41mm - Grey / Blue - 220.12.41.21.06.001 (new / 2025)
Aqua Terra 8900 41mm Gray Dial on Blue Rubber Strap, complete with all boxes and papers.
- Condition: Brand new
- Case material: Stainless Steel
- Movement caliber: Master Chronometer Movement
- Shipping cost international: $150

Omega Aqua Terra 8800 - Summer Blue - 38mm - 220.10.38.20.03.004 ( new )
The Omega Aqua Terra 8800 is a Master Chronometer movement watch with a stainless steel case and summer blue dial, available on a bracelet.
- Condition: Brand new
- Case size: 38mm
- Movement type: Master Chronometer

2015 Omega Aqua Terra Ref. 231.13.39.21.03.001 with Box & Papers
This iconic previous generation Seamaster Aqua Terra honors maritime heritage with a dial inspired by luxury sailboat decks, featuring a sun-brushed, lacquered blue Vertical Teak dial and a 38.5mm stainless steel case.
- Condition: Excellent (little to no signs of wear)
- Movement: Automatic
- Case width: 38.5mm
- Strap length: 7.50"