Omega Aqua Terra Seamaster Aqua Terra 150m Master Co-Axial 38.5 Red Gold / Grey / Bracelet

Reference 231.50.39.21.06.003

Omega Seamaster Aqua Terra 150m Master Co-Axial 38.5 Red Gold / Grey / Bracelet

About this watch

The Seamaster Aqua Terra 150m Master Co-Axial is a masterclass in watchmaking, seamlessly combining elegance, functionality, and advanced technology. This timepiece exudes luxury and sophistication with its stunning grey dial and striking red gold case. The Omega caliber 8501 automatic movement features a Co-Axial escapement, reducing friction and enhancing accuracy. With a power reserve of 60 hours, this watch is built to perform in various conditions. Its water resistance of 150m makes it a practical tool for water lovers, while its comfort on the wrist ensures all-day wear without discomfort. This watch is incredibly versatile, suitable for formal occasions and rugged environments alike.

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MSRP: $32,100

Market Price: $14,721

Key Features

Automatic Omega caliber 8501 movement
Co-Axial escapement for enhanced accuracy
Water resistance of 150m
Red gold case with 38.50 mm diameter
Grey dial with stick and dot indexes
Arrow-shaped hands for easy time-telling
Open case back to showcase movement details

Specifications

Brand

Omega

Family

Aqua Terra

Model

Seamaster Aqua Terra 150m Master Co-Axial 38.5 Red Gold / Grey / Bracelet

Reference

231.50.39.21.06.003

Movement

8501

Movement Features

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

Case

Red Gold 38.5mm

Dial Color

Grey

Crystal

Sapphire

Water Resistance

150

Current Listings

Omega Aqua Terra Quartz 2517.80 39mm Box and Papers - $1,890

Omega - 2517.80 · $1,890

Up for sale is my Omega Seamaster 2517.80, a quartz watch with Calibre Omega 1538 movement and a steel case on original Omega steel bracelet.

Condition: great condition, minimal marks on the case and bracelet
Case size: 39mm diameter
Movement: Calibre Omega 1538 quartz
Bracelet type: original Omega steel bracelet

Posted at

May 17, 2026, 9:26 PM

Active

View listing on r/WatchExchange

Omega Aqua Terra 231.10.39 Cal 8500 38.5 mm Master Co-Axial - $2,950

Omega - 231.10.39.21.02.002 · $2,950

Up for sale is my great condition Omega Aqua Terra 231.10.39 Cal 8500 38.5 mm Master Co-Axial.

Condition: Great condition, minimal marks on case and caseback
Case Size: 39mm diameter
Bracelet Type: Original Omega steel bracelet (replaced with OEM all brushed version)
Movement: Calibre OMEGA 8500

Posted at

May 17, 2026, 9:22 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra 231.10.39.21.01.001 Black Teak 38.5mm - $2,590

Omega - 231.10.39.21.01.001 · $2,590

Up for sale is my great condition Omega Seamaster Aqua Terra 231.10.39.21.01.001. This watch has an automatic Omega Calibre 8500 movement and measures at 38.5mm.

Condition: Very good condition, minor marks/hairlines
Movement: Omega Calibre 8500
Case size: 38.5mm
Bracelet type: Original Omega steel bracelet

Posted at

May 17, 2026, 9:16 PM

Active

View listing on r/WatchExchange