Omega Aqua Terra Seamaster Aqua Terra 150M Co-Axial 30 Red Gold / Diamond / MOP / Bracelet

Reference 231.55.30.20.55.001

Omega Seamaster Aqua Terra 150M Co-Axial 30 Red Gold / Diamond / MOP / Bracelet

About this watch

The Omega Seamaster Aqua Terra 150M Co-Axial 30 is a masterpiece of horological innovation, blending advanced technology with luxurious design. Its self-winding Caliber 8521 movement boasts precision and reliability thanks to its Co-Axial Escapement, ensuring accuracy and longevity. The watch's red gold case is durable and visually stunning, complemented by a mother of pearl dial that shimmers with iridescent quality. Diamond-set bezel and indexes add opulence without excess, while the 30mm diameter makes it perfect for smaller wrists. A water resistance of 150 meters ensures durability in wet conditions, making it ideal for active lifestyles. The watch's Geneva waves in arabesque finish speak to Omega's commitment to aesthetic excellence, making the movement as visually appealing as it is functional. With a power reserve of up to 50 hours and an automatic winding capability, this timepiece delivers on both form and function.

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Key Features

Self-winding Caliber 8521 movement
Co-Axial Escapement for improved accuracy and longevity
Red gold case with durable and visually stunning design
Mother of pearl dial with iridescent quality
Diamond-set bezel and indexes for added opulence
Water resistance of 150 meters for durability in wet conditions
Power reserve of up to 50 hours with automatic winding capability

Specifications

Brand

Omega

Family

Aqua Terra

Model

Seamaster Aqua Terra 150M Co-Axial 30 Red Gold / Diamond / MOP / Bracelet

Reference

231.55.30.20.55.001

Movement

8521

Movement Features

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

Case

Red Gold 30mm

Dial Color

White

Crystal

Sapphire

Water Resistance

150

Current Listings

Omega Seamaster Aqua Terra Quartz 231.10.39.60.06.001 $2,299

Omega - 231.10.39.60.06.001 · $2,299

The Omega Seamaster Aqua Terra Quartz is a highly regarded, all-around luxury watch that can seamlessly transition from formal events to casual wear.

Condition: Excellent pre-owned condition
Case Diameter: 38.5mm diameter
Lug Width: 19mm lug width
Lug To Lug: 45.4mm length of lugs

Posted at

Feb 14, 2026, 2:19 PM

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Omega Seamaster Aqua Terra 41mm White 220.10.41.21.02.001 2024 Full Set - $5,095

Omega - 220.10.41.21.02.001 · $5,095

This Omega Seamaster Aqua Terra White is a 2024 model with minimal signs of wear and in excellent working condition, having been thoroughly tested on a timegrapher.

Condition: Excellent condition with minimal signs of wear
Year: 2024
Contents: full set including watch, inner & outer box, card holder, international warranty card, master chronometer card, pictograms card

Posted at

Feb 14, 2026, 12:11 PM

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Omega Seamaster Aqua Terra 2023 41mm Grey 220.10.41.21.06.001 Full Set - $5,495

Omega - 220.10.41.21.06.001 · $5,495

This Omega Seamaster Aqua Terra Grey is a 2023 model, featuring a 41mm case.

Condition: Excellent condition with minimal signs of wear
Case Size: 41mm diameter

Posted at

Feb 14, 2026, 12:02 PM

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Omega Seamaster Aqua Terra 36mm 2504.80 Full Set

Omega - 2504.80 · $3,700

Omega Seamaster Aqua Terra 36mm watch in great condition, with a deployant rubber strap from Helvetus.

Condition: Great condition with minor wear
Bracelet condition: minor wear

Posted at

Feb 14, 2026, 11:21 AM

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Omega Aqua Terra 220.10.41.21.10.001 — 09/2025 Full Set — $4795 Shipped obo

Omega - 220.10.41.21.10.001 · $4,795

Up for sale is my Omega Aqua Terra 41mm in excellent condition, featuring a stunning green teak dial and Master Chronometer Co-Axial movement.

Condition: Excellent
Size: 41mm diameter
Year: 2025
Water resistance: 150m

Posted at

Feb 14, 2026, 12:17 AM

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Omega Seamaster Aqua Terra 150m 38.5mm

Omega - 231.10.39.21.02.001 · $2,950

This Omega Seamaster Aqua Terra is a steel on steel model, featuring a 38.5mm case and 150m water resistance.

Condition: Very good condition
Water Resistance: 150m depth rating
Case Size: 38.5mm diameter
Bracelet Links: includes all removable links plus an extra half-link

Posted at

Feb 13, 2026, 9:46 PM

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Omega Aqua Terra 2015 38.5mm 231.10.39.21.02.001 B&P

Omega - 231.10.39.21.02.001 · $3,100

Aqua Terra 2015 model, 38.5mm diameter, suitable for everyday wear with versatile style.

Condition: Excellent condition
Size: 38.5mm diameter

Posted at

Feb 13, 2026, 4:28 PM

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Omega Seamaster Aqua Terra Quartz - White Dial - 231.10.39.61.02.001 - Price Reduced!

Omega - 231.10.39.61.02.001 · $1,950

This Omega Seamaster Aqua Terra Quartz features a white dial and is powered by a quartz movement, coming on its original stainless steel bracelet.

Condition: pre-owned with minor wear
Size: 38.5mm diameter
Movement: quartz
Bracelet material: stainless steel

Posted at

Feb 13, 2026, 12:58 PM

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Omega Seamaster Aqua Terra – Annual Calendar – 38.5mm Blue Dial

Omega - 23110392203001 · $4,400

The Omega Seamaster Aqua Terra features a 38.5mm stainless steel case on a stainless steel bracelet, with an annual calendar complication that automatically accounts for months with 30 or 31 days.

Condition: Excellent condition
Case size: 38.5mm diameter
Movement: Omega Co-Axial calibre 8601

Posted at

Feb 13, 2026, 11:38 AM

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