Omega Aqua Terra Seamaster Aqua Terra 150M Master Co-Axial 38.5 Stainless Steel / Diamond / MOP

Reference 231.18.39.21.55.001

Omega Seamaster Aqua Terra 150M Master Co-Axial 38.5 Stainless Steel / Diamond / MOP

About this watch

The Omega Seamaster Aqua Terra 231.18.39.21.55.001 is a masterpiece of luxury watchmaking, featuring a stunning Mother of Pearl dial and exceptional movement with a 60-hour power reserve. Its durable stainless steel construction and water resistance up to 150 meters make it perfect for everyday wear. This versatile timepiece combines elegance and functionality, making it a solid contender in the world of luxury watches.

Buy Now on Jomashop

This is an affiliate link

MSRP: $16,000

Market Price: $5,140

Key Features

Omega caliber 8500 automatic movement
60-hour power reserve
Water resistance up to 150 meters
Mother of Pearl dial with gem-set indexes
Durable stainless steel construction
Date function and hours, minutes, seconds display

Specifications

Brand

Omega

Family

Aqua Terra

Model

Seamaster Aqua Terra 150M Master Co-Axial 38.5 Stainless Steel / Diamond / MOP

Reference

231.18.39.21.55.001

Movement

8500

Movement Features

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

Case

Stainless Steel 38.5mm

Dial Color

White

Crystal

Sapphire

Water Resistance

150

Current Listings

Omega Aqua Terra 220.10.41.21 Black Dial 41mm Full Kit 2023 - $4,250

Omega - 220.10.41.21 · $4,250

Up for sale is my very good condition Omega Seamaster Aqua Terra with a Calibre OMEGA 8900 automatic movement and measuring at 41mm.

Condition: Very good condition, minor marks on the case back and bezel
Movement: Calibre OMEGA 8900 automatic movement
Case size: 41mm diameter
Water resistance: 150m

Posted at

Jan 12, 2026, 8:38 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra |Silver/White teak-pattern dial with solid 18K rose gold hands | 150M 38.5mm | 2023 Full Set in Mint Condition

Omega - 231.13.39.21.02.003 · $4,890

A beautifully proportioned Omega Seamaster Aqua Terra 150M in the highly sought-after 38.5mm case, powered by Omega’s in-house Master Co-Axial Caliber 8500.

Condition: Excellent
Case size: 38.5mm diameter
Movement: Omega Master Co-Axial Cal. 8500
Dial: Silver-white teak pattern

Posted at

Jan 12, 2026, 8:14 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra 150m Blue 220.10.41.21.03.002

Omega - 220.10.41.21.03.002 · $3,999

This Omega Seamaster Aqua Terra features a blue dial with a 150m water resistance.

Condition: like new
Bracelet length: 7.25 inches
Payment methods: Zelle, Venmo, Western Union

Posted at

Jan 12, 2026, 2:43 PM

Active

View listing on r/WatchExchange

Omega Seamater Aqua Terra 38mm

Omega - Aqua Terra 38mm · $4,250

The Omega Seamaster Aqua Terra 38mm is a beautiful watch in good condition, featuring the Aqua Terra 38mm Watch Protection Film on the case and half of its metal bracelet for added scratch protection.

Condition: good pre-owned condition
Bracelet: metal
Strap: 6.75in blue rubber strap from StrapsCo
Box: Inner and Outer Box included

Posted at

Jan 11, 2026, 3:35 PM

Active

View listing on r/WatchExchange

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

Aqua Terra Grey watch in excellent condition, reference 220.10.41.21.06.001, from 2023.

Condition: Excellent condition with minimal signs of wear
Year: 2023
Case size: 41mm
Contents: Watch (full links),Inner & Outer Box,Card Holder,International Warranty Card,Master Chronometer Card,Pictograms Card

Posted at

Jan 11, 2026, 1:33 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra 150M – Ref. 231.10.42.21.01.003 – 41.5mm – Box & Watch – $2999 Shipped

Omega - 231.10.42.21.01.003 · $2,999

The Omega Seamaster Aqua Terra 150M is a versatile everyday watch featuring a 41.5mm stainless steel case, black dial with teak-style vertical pattern, and date at 3 o'clock, powered by Omega's Master Co-Axial chronometer movement.

Condition: Good overall with light wear
Case size: 41.5mm diameter
Bracelet length adjustment: 7.4-inch wrist

Posted at

Jan 10, 2026, 9:24 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra – Discontinued Black “Teak” Dial| 42mm Master Co- Axial | Reference: 231.10.42.21.01.003| Full Set

Omega - 231.10.42.21.01.003 · $4,250

A discontinued, classically styled Aqua Terra with the desirable black teak dial, powered by Omega’s robust Master Co-Axial technology. A versatile luxury sports watch equally at home with a suit or casual wear, and an excellent example of Omega’s technical evolution prior to the Master Chronometer era.

Condition: Very good overall condition
Diameter: 41.5mm
Water resistance: 150m / 500ft
Movement type: Master Co-Axial automatic movement

Posted at

Jan 10, 2026, 8:07 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra 150M “Spectre” Blue Dial – 41.5mm|Ref: 231.10.42.21.03.003| Full Set | Mint Condition

Omega - 231.10.42.21.03.003 · $3,990

This highly sought-after Aqua Terra 'Spectre' configuration features a blue teak dial and in-house Calibre 8500, delivering reliable Co-Axial performance and strong wrist presence.

Condition: Excellent condition throughout
Case size: 41.5mm
Depth rating: 150m

Posted at

Jan 10, 2026, 6:02 PM

Active

View listing on r/WatchExchange