Omega Aqua Terra Seamaster Aqua Terra 150M Co-Axial 30 Stainless Steel / Red Gold / MOP

Reference 231.23.30.20.55.001

Omega Seamaster Aqua Terra 150M Co-Axial 30 Stainless Steel / Red Gold / MOP

About this watch

The Omega Seamaster Aqua Terra 150M Co-Axial 30 (model 231.23.30.20.55.001) is a testament to Omega's reputation for luxury and performance, merging functionality with elegance. The watch features a stunning mother-of-pearl dial, reliable automatic movement, and impressive water resistance of 150 meters. The combination of stainless steel and red gold creates a striking contrast, while the mother-of-pearl dial adds an element of luxury and sophistication. With its Co-Axial escapement and chronometer certification, this watch is built to perform beautifully for years to come. Whether you're diving, swimming, or simply caught in a rain shower, this watch is more than capable of handling various environments. The robust sapphire crystal adds an extra layer of protection against scratches, ensuring that your watch maintains its beauty over time. With a diameter of just 30 mm, the Omega Seamaster Aqua Terra is designed to fit comfortably on various wrist sizes, making it versatile enough to suit any occasion.

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Key Features

Omega caliber 8520 automatic movement
150 meters water resistance
Mother-of-pearl dial with gem-set indexes and arrow-shaped hands
Stainless steel and red gold construction
Chronometer certification
Co-Axial escapement for reduced friction and increased longevity
Robust sapphire crystal for scratch protection

Specifications

Brand

Omega

Family

Aqua Terra

Model

Seamaster Aqua Terra 150M Co-Axial 30 Stainless Steel / Red Gold / MOP

Reference

231.23.30.20.55.001

Movement

8520

Movement Features

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

Case

30mm

Dial Color

White

Crystal

Sapphire

Water Resistance

150

Current Listings

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 Seamaster Aqua Terra Co-Axial 39mm 231.10.39.21.02.001 White

Omega - 231.10.39.21.02.001 · $2,999

This Omega Seamaster Aqua Terra Co-Axial features a 39mm case and is available with a 7" bracelet.

Bracelet Size: 7 inches

Posted at

Oct 15, 2025, 5:51 PM

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Omega Seamaster Aqua Terra Co-Axial 42mm 231.10.42.21.06.001 Gray

Omega - 231.10.42.21.06.001 · $2,999

This Omega Seamaster Aqua Terra Co-Axial is a 42mm watch with a gray finish and has been recently serviced.

Condition: Pre-owned, serviced
Case Size: 42mm diameter
Bracelet Length: 7.25 inches

Posted at

Oct 15, 2025, 5:50 PM

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Omega Seamaster Aqua Terra quartz $1.5k

Omega - 2518.50.00 · $1,500

This Omega Seamaster Aqua Terra quartz watch features a 6.5 inch bracelet that fits the seller's wrist.

Condition: Good
Bracelet size: 6.5 in.
Box/papers: No

Posted at

Oct 15, 2025, 11:45 AM

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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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