Omega Aqua Terra Seamaster Aqua Terra 150M Master Chronometer 41 Armand “Mondo” Duplantis

Reference 220.12.41.21.03.009

About this watch

The Omega Seamaster Aqua Terra 150M Master Chronometer 41 Armand ‘Mondo’ Duplantis is a masterclass in watchmaking, blending stunning aesthetics with innovative movement and robust functionality. This sporty yet elegant timepiece seamlessly transitions from the boardroom to the beach, making it a perfect companion for any occasion. With its METAS-certified Omega caliber 8900 movement, this watch boasts superior performance and precision, featuring resistance to magnetic fields exceeding 15,000 Gauss. The automatic movement boasts a power reserve of 60 hours, ensuring accurate timekeeping even in the presence of electronic devices. Whether you're timing your next run or checking the date for your next appointment, the Aqua Terra has you covered with its chronometer certification and comfortable stainless steel bracelet. This watch is not just a statement of style and performance; it's an investment in luxury and legacy.

Buy Now on Jomashop

This is an affiliate link

Key Features

Omega caliber 8900 movement
METAS-certified for superior precision and resistance to magnetic fields
Chronometer certification for accuracy and reliability
Stainless steel case with sapphire crystal for scratch-resistance and water-resistance up to 150m
Comfortable stainless steel bracelet with lug width of 20mm
Automatic movement with power reserve of 60 hours
Stunning blue gradient dial with stick/dot indexes and arrow hands

Specifications

Brand

Omega

Family

Aqua Terra

Model

Seamaster Aqua Terra 150M Master Chronometer 41 Armand “Mondo” Duplantis

Reference

220.12.41.21.03.009

Movement

8900

Movement Features

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

Case

Stainless Steel 41mm

Dial Color

Blue

Crystal

Sapphire

Water Resistance

150

Current Listings

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

Omega Seamaster Aqua Terra 2503.33 - $2,450 - Reserved Post for u/Life_Minute_Second

Omega - 2503.33 · $2,450

Up for sale is my Omega Seamaster Aqua Terra 2503.33, a 39mm watch with an Omega 2500 automatic movement.

Condition: Very good
Case material: Steel
Bracelet material: Original Omega Steel
Crystal type: Sapphire

Posted at

Mar 25, 2026, 4:23 AM

Active

View listing on r/WatchExchange

Omega Aqua Terra 231.10.39 Cal 8500 39mm w/ cards- $2,850 - Reserved post for u/SamV88

Omega - 231.10.39 Cal 8500 · $2,850

The Omega Aqua Terra 231.10.39 Cal 8500 is a 39mm watch with an Calibre OMEGA 8500 movement. It has a steel case on original Omega steel bracelet.

Condition: Great condition, with minimal marks on the case and caseback
Case size: 39mm
Bracelet material: Steel
Movement: Calibre OMEGA 8500

Posted at

Mar 25, 2026, 4:05 AM

Active

View listing on r/WatchExchange

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

Omega - 231.10.39 38.5mm · $1,890

Up for sale is my Omega Seamaster Aqua Terra 231.10.39 in great condition. This watch measures at 39mm and has an Calibre OMEGA 4564 quartz movement.

Condition: 8.9/10, great condition
Case material: steel
Bracelet type: original steel Omega bracelet
Crystal type: sapphire crystal

Posted at

Mar 25, 2026, 4:02 AM

Active

View listing on r/WatchExchange

Omega Aqua Terra GMT 231.13.43.22.01.001 in like new condition

Omega - 231.13.43.22.01.001 · $6,500

Condition: like new
Case material: stainless steel
Bezel material: ceramic

Posted at

Mar 24, 2026, 8:03 PM

Active

View listing on r/WatchExchange

Omega 2504.80.00 — Seamaster Aqua Terra Blue Dial 36mm — Cal. 2500 Co-Axial Chronometer — $2,399 Shipped

Omega - 2504.80.00 · $2,399

This Omega Seamaster Aqua Terra features a sunburst blue dial paired with the Cal. 2500 Co-Axial automatic movement in a versatile 36mm case that works well in casual and formal settings.

Condition: Pre-owned with signs of wear and light surface scratches consistent with age
Movement: Cal. 2500 Co-Axial
Case dimensions: 43.5mm lug-to-lug, 11mm thickness, 19mm lug width
Bracelet size: fits up to approximately a 7” wrist

Posted at

Mar 24, 2026, 1:22 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra - 231.10.42.21.01.003 - Fits up to 7.5"

Omega - 231.10.42.21.01.003 · $4,200

An Omega Seamaster Aqua Terra 150M in stainless steel features a black teak-pattern dial, Omega Caliber 8500 movement, and 41.5mm case.

Condition: Pre-owned with light scratches
Movement: Omega Caliber 8500 automatic
Case size: 41.5mm diameter
Water resistance: 150m depth rating

Posted at

Mar 24, 2026, 10:53 AM

Active

View listing on r/WatchExchange