Omega Aqua Terra Seamaster Aqua Terra 150M Co-Axial 30 Stainless Steel / Red Gold / MOP
Reference 231.23.30.20.55.001
About this watch
The Omega Seamaster Aqua Terra 150M Co-Axial 30 (model 231.23.30.20.55.001) is a testament to Omega's reputation for luxury and performance, merging functionality with elegance. The watch features a stunning mother-of-pearl dial, reliable automatic movement, and impressive water resistance of 150 meters. The combination of stainless steel and red gold creates a striking contrast, while the mother-of-pearl dial adds an element of luxury and sophistication. With its Co-Axial escapement and chronometer certification, this watch is built to perform beautifully for years to come. Whether you're diving, swimming, or simply caught in a rain shower, this watch is more than capable of handling various environments. The robust sapphire crystal adds an extra layer of protection against scratches, ensuring that your watch maintains its beauty over time. With a diameter of just 30 mm, the Omega Seamaster Aqua Terra is designed to fit comfortably on various wrist sizes, making it versatile enough to suit any occasion.
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Key Features
- Omega caliber 8520 automatic movement
- 150 meters water resistance
- Mother-of-pearl dial with gem-set indexes and arrow-shaped hands
- Stainless steel and red gold construction
- Chronometer certification
- Co-Axial escapement for reduced friction and increased longevity
- Robust sapphire crystal for scratch protection
Specifications
- Brand
- Omega
- Family
- Aqua Terra
- Model
- Seamaster Aqua Terra 150M Co-Axial 30 Stainless Steel / Red Gold / MOP
- Reference
- 231.23.30.20.55.001
- Movement
- 8520
- Movement Features
-
- Hours, Minutes, Seconds
- Date
- Chronometer, Co-Axial Escapement
- Case
- 30mm
- Dial Color
- White
- Crystal
- Sapphire
- Water Resistance
- 150
Current Listings

Omega Aqua Terra 8800 - Turquoise - 38mm - 220.10.38.20.03.005 ( new / 2025 )
The Omega Aqua Terra 8800 is a luxury watch with a 38mm stainless steel case, featuring the Omega 8800 calibre and a turquoise dial.
- Condition: Brand New
- Case Size: 38mm diameter
![[WTS] Forstner 20mm Model O Bracelet for Omega Seamaster, Aqua Terra, Railmaster, and Planet Ocean - NEW - $135](https://preview.redd.it/qbzwvt6w8pbf1.jpeg?auto=webp&s=075af9f7069ff7e82c406a31a4395d8bc83fc8b7)
Forstner 20mm Model O Bracelet for Omega Seamaster, Aqua Terra, Railmaster, and Planet Ocean - NEW - $135
路
$135
- Condition: New, never worn beyond sizing
- Watch compatibility: Omega Seamaster, Aqua Terra, Railmaster, Planet Ocean
![[WTS] Omega Seamaster Aqua Terra 38.5mm Automatic Calibre 8500 231.10.39.21.06.001](https://preview.redd.it/7komosus4pbf1.jpeg?auto=webp&s=f48e335f2eaedae047596b6a4577523564815fa3)
Omega Seamaster Aqua Terra 38.5mm Automatic Calibre 8500 231.10.39.21.06.001
This Omega Seamaster Aqua Terra is a 38.5mm watch featuring an automatic Calibre 8500 movement and comes with a 7.75 inch bracelet.
- Condition: Awesome condition
- Bracelet length: 7.75 inches
![[WTS]馃敟 Omega Seamaster Aqua Terra 150M Chronometer 2503.30 Automatic, Men鈥檚 39mm, $2150 SHIPPED !!! 馃敟](https://preview.redd.it/cd7uzec1mobf1.jpeg?auto=webp&s=7e2119d50441f199abcecbe96c84c9b7da72e616)
馃敟 Omega Seamaster Aqua Terra 150M Chronometer 2503.30 Automatic, Men鈥檚 39mm, $2150 SHIPPED !!! 馃敟
The Omega Seamaster Aqua Terra 150M Chronometer is a user-friendly watch with a clean and straightforward design, featuring a silver dial, automatic movement, and 150m water resistance.
- Condition: Good, Perfect timekeeping
- Case Material: Stainless Steel
- Glass: Scratch resistant Sapphire
- Caseback: Display
![[WTS] REPOST AND REDUCED, OMEGA Dynamic 5250.50, REF 166.0310, Uncle Straps Aqua Terra inspired bracelet, with gorgeous aftermarket brown strap, Omega buckle, ASKING $1265 ALL-IN TO BUYER VIA ZELLE, SHIPPED CONUS ONLY, INSURED, POTENTIALLY EXPEDITED](https://preview.redd.it/84xd4bdc6jbf1.jpg?width=640&crop=smart&auto=webp&s=efbfa39fa6a6257addb222adc9d23931b2aec5d3)
REPOST AND REDUCED, OMEGA Dynamic 5250.50, REF 166.0310, Uncle Straps Aqua Terra inspired bracelet, with gorgeous aftermarket brown strap, Omega buckle, ASKING $1265 ALL-IN TO BUYER VIA ZELLE, SHIPPED CONUS ONLY, INSURED, POTENTIALLY EXPEDITED
- Condition: Pre-owned, serviced in late 2023
- Case Diameter: 36.5MM
- Lug To Lug: 42MM
- Thickness: 9.3MM
![[WTS] REDUCED - Omega Seamaster Aqua Terra 150M Co-axial 30mm 231.10.30.20.02.001](https://preview.redd.it/6st8nvgpbhbf1.jpg?width=640&crop=smart&auto=webp&s=b17f2e1c3dd4d9beb117385993ed9d60cc9cbbd5)
REDUCED - Omega Seamaster Aqua Terra 150M Co-axial 30mm 231.10.30.20.02.001
The Omega Seamaster Aqua Terra 150M is a 30mm automatic watch with a white teak striped dial, powered by the OMEGA Co-Axial calibre 8520. This certified chronometer features a transparent caseback and was purchased new in 2020.
- Condition: Near New/Mint Condition
- Diameter: 30mm
- Depth rating: 150m
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