Omega Aqua Terra Seamaster Aqua Terra 150M Master Co-Axial 38.5 Yellow Gold / Diamond / MOP / Bracelet

Reference 231.55.39.21.55.002

About this watch

The Omega Seamaster Aqua Terra 150M Master Co-Axial 38.5 Yellow Gold / Diamond / MOP / Bracelet is a stunning piece that combines luxury with functionality. Its exquisite design, reliable movement, and versatility make it a worthy addition to any watch collection. With its luxurious features and unique design elements, this watch is certainly a conversation starter. The round case has a diameter of 38.5 mm, making it a versatile size that comfortably fits both small and large wrists. It strikes a perfect balance, neither too overwhelming nor too dainty. The open case back allows you to admire the intricate movement within, a testament to Omega’s commitment to transparency and craftsmanship. At the heart of the Seamaster Aqua Terra 150M lies the Omega Caliber 8501, an automatic movement with a frequency of 25,200 vibrations per hour, ensuring precision and reliability. With a water resistance rating of 150 meters, this watch is not just a pretty face; it’s built for adventure. Whether you’re swimming, snorkeling, or just splashing about, you can do so with peace of mind. This watch seamlessly transitions from casual to formal settings, making it perfect for any occasion.

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MSRP: $44,500

Market Price: $15,892

Key Features

Omega Caliber 8501 Automatic Movement
38.5mm Yellow Gold Case
Gem-Set Bezel and Indexes
Sapphire Glass Crystal
150m Water Resistance
Date Function and Chronometer Certified

Specifications

Brand

Omega

Family

Aqua Terra

Model

Seamaster Aqua Terra 150M Master Co-Axial 38.5 Yellow Gold / Diamond / MOP / Bracelet

Reference

231.55.39.21.55.002

Movement

8501

Movement Features

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

Case

Yellow Gold 38.5mm

Dial Color

White

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