Omega Aqua Terra Seamaster Aqua Terra 150M Co-Axial 38.5 Stainless Steel / Red Gold / MOP / Bracelet

Reference 231.20.39.21.55.001

Omega Seamaster Aqua Terra 150M Co-Axial 38.5 Stainless Steel / Red Gold / MOP / Bracelet

About this watch

The Omega Seamaster Aqua Terra 231.20.39.21.55.001 is a masterpiece of luxury watchmaking that combines elegance and robust functionality. Its Mother of Pearl dial changes hues with different lighting, adding an element of depth and intrigue. The combination of red gold and stainless steel gives it a luxurious feel, making it a statement piece for any outfit. At the heart of this magnificent watch lies the Omega caliber 8500, introduced in 2007, which has earned accolades for its reliability and precision. With a frequency of 25,200 vibrations per hour and a power reserve of up to 60 hours, it ensures your timepiece keeps ticking even after a weekend away from your wrist. The watch features a sapphire crystal resistant to scratches and impacts, ensuring that your watch remains pristine even after years of wear. Measuring 38.50 mm in diameter, this Omega watch fits comfortably on the wrist, striking a balance between being bold and understated.

Buy Now on Jomashop

This is an affiliate link

MSRP: $10,000

Market Price: $4,571

Key Features

Omega caliber 8500 movement
Mother of Pearl dial with changing hues
Sapphire crystal for scratch resistance
Water resistance of 150 meters
Red gold and stainless steel combination
Chronometer certified
Power reserve of up to 60 hours

Specifications

Brand

Omega

Family

Aqua Terra

Model

Seamaster Aqua Terra 150M Co-Axial 38.5 Stainless Steel / Red Gold / MOP / Bracelet

Reference

231.20.39.21.55.001

Movement

8500

Movement Features

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

Case

38.5mm

Dial Color

White

Crystal

Sapphire

Water Resistance

150

Current Listings

Omega Aqua Terra 2517.30 COMPLETE SET

Omega - 2517.30 · $2,450

For sale is an Omega Aqua Terra 39mm quartz watch, sold as a complete set including links and warranty card.

Condition: Pre-owned (serviced)
Case Size: 39mm
Movement Type: quartz

Posted at

Mar 27, 2026, 4:11 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra 38.5mm 231.23.39.21.06.001 – Gold Bezel – Full Set – $5199

Omega - 231.23.39.21.06.001 · $5,199

a luxury watch from Omega's Seamaster Aqua Terra collection, featuring a gold bezel and measuring 38.5mm in diameter.

Size: 38.5mm diameter

Posted at

Mar 27, 2026, 10:27 AM

Active

View listing on r/WatchExchange

Omega Aqua Terra 231.10.39.21.01.001 Cal 8500 38.5mm Black Teak - $3,250

Omega - 231.10.39 Cal 8500 · $3,250

Up for sale is Omega Aqua Terra 231.10.39 Cal 8500 with a Calibre OMEGA 8500 movement and a steel case on original Omega steel bracelet.

Condition: Great condition, minor marks on case and bracelet
Movement: Calibre OMEGA 8500
Case size: 38.5mm diameter
Bracelet material: Steel

Posted at

Mar 26, 2026, 10:35 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra 231.10.39 38.5mm Quartz Grey Teak - $1,890

Omega - 231.10.39 · $1,890

Up for sale is my Omega Seamaster Aqua Terra 231.10.39, measuring at 39mm with a Calibre OMEGA 4564 quartz movement.

Condition: great condition, minimal marks/hairlines on the case
Movement: Calibre OMEGA 4564 quartz
Case size: 39mm
Water resistance: 150m

Posted at

Mar 26, 2026, 9:36 PM

Active

View listing on r/WatchExchange

Omega Aqua Terra Shades Sandstone - 38mm - 220.10.38.20.09.001

Omega - 220.10.38.20.09.001 · $3,850

This Omega Seamaster Aqua Terra Shades features a stunning 'Sandstone' dial and is available in 38mm size. It's a watch-only example that's been lightly used.

Condition: lightly pre-owned with light, normal wear throughout and small mark on crystal near 3 o'clock
Case Size: 38mm diameter
Movement Amplification: 300+ amplitude
Accuracy: +1 second/day

Posted at

Mar 26, 2026, 6:35 PM

Active

View listing on r/WatchExchange

36mm Omega Seamaster Aqua Terra Quartz - Ref 2518.50 - $1900 SHIPPED

Omega - 2518.50 · $1,900

A 36mm Omega Seamaster Aqua Terra Quartz watch, powered by a Calibre OMEGA 1538 quartz movement.

Condition: Excellent condition
Case Size: 36mm diameter
Bracelet Length: up to 7"
Movement Type: quartz

Posted at

Mar 26, 2026, 3:27 PM

Active

View listing on r/WatchExchange

2024 Omega Seamaster Aqua Terra 150M 41mm Silver Dial 220.12.41.21.02.002 Full Set Excellent

Omega - 220.12.41.21.02.002 · $5,750

The Omega Seamaster Aqua Terra 150M is a versatile watch that combines everyday style with refined nautical design. Its 41mm stainless steel case features a silver "teak concept" dial, inspired by wooden yacht decks.

Condition: Excellent
Diameter: 41mm
Depth rating: 150m

Posted at

Mar 26, 2026, 12:31 PM

Active

View listing on r/WatchExchange