Omega Aqua Terra Seamaster Aqua Terra 150M Co-Axial 38.5 Stainless Steel / Red Gold / Grey
Reference 231.23.39.21.06.001
About this watch
The Omega Seamaster Aqua Terra 150M Co-Axial 38.5 is a luxurious timepiece that embodies precision, craftsmanship, and style. This stunning watch boasts an exquisite combination of stainless steel and red gold construction, giving it a luxurious yet durable appeal. The 38.5mm round shape strikes a perfect balance between boldness and subtlety, making it suitable for both men and women. The grey dial is sophisticated and versatile, pairing beautifully with various outfits. The open case back allows you to admire the intricate Omega caliber 8500 movement, which features two barrels providing a robust 60-hour power reserve. This chronometer has undergone rigorous testing to ensure its accuracy, meeting the standards set by the Swiss Official Chronometer Testing Institute (COSC). With a water resistance of 150 meters and an easy-to-read date function, this watch is perfect for daily wear. Its classic design ensures it won't go out of style, making it a timeless addition to any collection. For watch collectors, the Omega Seamaster Aqua Terra 150M Co-Axial 38.5 is a must-have, combining innovative movement, luxury materials, and stunning aesthetic. This remarkable choice offers both functionality and style, standing out among its peers.
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Key Features
- Omega Caliber 8500 Movement
- 60-Hour Power Reserve
- 150M Water Resistance
- Grey Dial with Stick and Dot Indexes
- Red Gold Accents on Stainless Steel Case
- Open Case Back for Visible Movement
- Chronometer Certified by COSC
Specifications
- Brand
- Omega
- Family
- Aqua Terra
- Model
- Seamaster Aqua Terra 150M Co-Axial 38.5 Stainless Steel / Red Gold / Grey
- Reference
- 231.23.39.21.06.001
- Movement
- 8500
- Movement Features
-
- Hours, Minutes, Seconds
- Date
- Chronometer, Co-Axial Escapement
- Case
- 38.5mm
- Dial Color
- Grey
- Crystal
- Sapphire
- Water Resistance
- 150
Current Listings
![[WTS] Omega Seamaster Aqua Terra 39mm 2503.50 $2200](https://preview.redd.it/wx318j46trvf1.jpg?width=640&crop=smart&auto=webp&s=bcd005e4aa0b8f2200631df987ad373fbe98663e)
Omega Seamaster Aqua Terra 39mm 2503.50 $2200
This Omega Seamaster Aqua Terra 39mm is a stylish and functional watch that features a clean crystal and fits about an 18cm wrist.
- Condition: Excellent, little signs of use
- Case size: 39mm
- Wrist size: fits about 18cm
![[WTS] Omega Aqua Terra Co-Axial - FULLY SERVICED this week! - $2,599 Shipped!](https://preview.redd.it/jvxa1oz7fpvf1.jpg?width=640&crop=smart&auto=webp&s=1d3fdcfd1fbb69d9338189ff05aa473e6c5efc27)
Omega Aqua Terra Co-Axial - FULLY SERVICED this week! - $2,599 Shipped!
This is the classic 39mm Omega Aqua Terra featuring a silver dial and Caliber 2500 Co-Axial movement. The watch has just undergone a complete service and is running accurately.
- Condition: Excellent with minor mark on left case side
- Movement: Caliber 2500 Co-Axial
- Case size: 39mm diameter
- Water resistance: null
![[WTS] Unworn and unfitted Omega Seamaster Aqua Terra 150M 41mm steel on steel - bought Aug 2025 [warranty start date]](https://preview.redd.it/q40rl03sakvf1.jpg?width=640&crop=smart&auto=webp&s=5161931ab338de3d5a3143da5f290328a526fa5a)
Unworn and unfitted Omega Seamaster Aqua Terra 150M 41mm steel on steel - bought Aug 2025 [warranty start date]
This Omega Seamaster Aqua Terra 150M is an automatic watch with a stainless steel case and sapphire crystal.
- Condition: mint condition, unworn
- Movement caliber: 8900
- Water resistance depth rating: 150m
![[WTS] Omega Seamaster Aqua Terra - 36mm - 2504.80](https://preview.redd.it/k3p5sp70civf1.jpg?width=640&crop=smart&auto=webp&s=c9b6e7e058463ac15e246b8325eb63641c54ac9e)
Omega Seamaster Aqua Terra - 36mm - 2504.80
The Omega Seamaster Aqua Terra features a stunning navy blue sunburst dial and is powered by Omega's innovative Co-Axial automatic movement.
- Condition: Excellent overall condition with minimal wear
- Case Size: 36.2mm diameter
- Crystal Type: Domed sapphire crystal with anti-reflective coating
![[WTS] Omega Seamaster Aqua Terra Co-Axial 39mm 231.10.39.21.02.001 White](https://preview.redd.it/q8nzduezjcvf1.jpg?width=640&crop=smart&auto=webp&s=ca62f49d56bd396b954cbe7f8c6f8b29030553ed)
Omega Seamaster Aqua Terra Co-Axial 39mm 231.10.39.21.02.001 White
This Omega Seamaster Aqua Terra Co-Axial features a 39mm case and is available with a 7" bracelet.
- Bracelet Size: 7 inches
![[WTS] Omega Seamaster Aqua Terra Co-Axial 42mm 231.10.42.21.06.001 Gray](https://preview.redd.it/buq1xu5rjcvf1.jpg?width=640&crop=smart&auto=webp&s=640eb60fd20d8087108bbf96eb82857302f1db23)
Omega Seamaster Aqua Terra Co-Axial 42mm 231.10.42.21.06.001 Gray
This Omega Seamaster Aqua Terra Co-Axial is a 42mm watch with a gray finish and has been recently serviced.
- Condition: Pre-owned, serviced
- Case Size: 42mm diameter
- Bracelet Length: 7.25 inches
![[WTS] Omega Seamaster Aqua Terra quartz $1.5k](https://preview.redd.it/x16efaklqavf1.jpg?width=640&crop=smart&auto=webp&s=af2e78deda6f521ca2bf7196bbfc2d154555aeb9)
Omega Seamaster Aqua Terra quartz $1.5k
This Omega Seamaster Aqua Terra quartz watch features a 6.5 inch bracelet that fits the seller's wrist.
- Condition: Good
- Bracelet size: 6.5 in.
- Box/papers: No
![[WTS] 2024 OMEGA Seamaster Aqua Terra Summer Blue Dial 41mm BOXES/PAPERS!](https://preview.redd.it/9mq3m60fy4vf1.jpg?width=640&crop=smart&auto=webp&s=fe3d57d2505a68aed960c02fea529ac613bb9067)
2024 OMEGA Seamaster Aqua Terra Summer Blue Dial 41mm BOXES/PAPERS!
The seller is listing a brand-new OMEGA Seamaster Aqua Terra Summer Blue Dial 41mm watch, complete with all the original packaging and accessories.
- Condition: Brand new with minor handling mark
- Case diameter: 41mm
- Water resistance depth rating: 150 Meters
- Power reserve: 60 Hours

Omega Aqua Terra 8800 - 38mm - Lacquer Black - 220.10.38.20.01.004 ( new )
Up for sale is a brand new Omega Aqua Terra 8800 38mm with Lacquer Black Dial, reference # 220.10.38.20.01.004.
- Condition: Brand new
- Case size: 38mm
- Movement type: Master Chronometer Movement