Omega Seamaster Aqua Terra, 38.5mm, Co-Axial Calibre 8500 Automatic Chronometer, 231.20.39.21.55.001
$6,271.00 USD
The OMEGA Seamaster Aqua Terra 150M 231.20.39.21.55.001 brings a distinctly luxurious character to the Aqua Terra collection, combining stainless steel and 18K red gold with a white mother-of-pearl dial set with diamond hour markers. The 38.5mm case is complemented by an 18K red gold bezel and a two-tone bracelet, creating a sophisticated interpretation of OMEGA's versatile everyday sports watch.
Powering the watch is the OMEGA Co-Axial Calibre 8500, a self-winding chronometer movement featuring OMEGA's Co-Axial escapement and twin barrels mounted in series. Offering a 60-hour power reserve, the movement combines strong mechanical performance with practical everyday usability and can be viewed through the transparent sapphire crystal caseback.
Specifications
- Brand: OMEGA
- Model: Seamaster Aqua Terra 150M
- Reference: 231.20.39.21.55.001
- Movement: OMEGA Co-Axial Calibre 8500 Automatic Chronometer
- Case Material: Stainless Steel and 18K Red Gold
- Dial: White Mother-of-Pearl with Diamond Hour Markers
- Case Size: 38.5mm
- Crystal: Domed Sapphire Crystal with Anti-Reflective Treatment
- Caseback: Transparent Sapphire Crystal Caseback
- Bracelet: Stainless Steel and 18K Red Gold
- Wrist Size: Fits up to 18cm
- Water Resistance: 150m – not guaranteed due to age
- Power Reserve: 60 Hours
- Production Period: Circa 2010s
- Functions: Hours, Minutes, Central Seconds, Date
- Accessories: papers
- Condition: Traces of usage, scratches can be seen but generally in good condition
- Availability: Global Concierge Sourcing Service
Key Features
- Movement — The OMEGA Co-Axial Calibre 8500 combines a self-winding chronometer movement with OMEGA's Co-Axial escapement, twin barrels and a 60-hour power reserve.
- Design — The white mother-of-pearl dial with diamond hour markers gives this Aqua Terra a distinctly luxurious character, complemented by warm 18K red gold detailing.
- Case Size — The 38.5mm case offers beautifully balanced proportions, providing presence on the wrist while retaining the versatility associated with the Aqua Terra.
- Crystal — A domed sapphire crystal protects the dial, while the transparent sapphire caseback provides a view of the decorated Calibre 8500 movement.
- Two-Tone Construction — The combination of stainless steel and 18K red gold distinguishes this reference from conventional steel Aqua Terra models, adding a more refined character without compromising everyday wearability.
The OMEGA Seamaster Aqua Terra 231.20.39.21.55.001 offers a more luxurious interpretation of the Aqua Terra formula. Its mother-of-pearl diamond dial, two-tone construction and Co-Axial mechanical movement make it particularly appealing for someone seeking an OMEGA with greater presence and distinction while retaining everyday versatility.
“Style is Timeless”
In-Stock (New Zealand)
Dispatched the next business day via signature-required courier. Delivery is typically 1–2 business days within New Zealand. Tracking details are provided upon dispatch.
In-Stock (Australia)
Timepieces dispatched from New Zealand to Australia are typically delivered within approximately one week via secure international courier. Tracking details are provided upon dispatch.
Global Concierge
Timepieces sourced through our Global Concierge Service are typically delivered within 2–3 weeks. You'll receive updates throughout the sourcing and shipping process, with tracking provided once your watch has been dispatched.
DPD: Duties and taxes are included in the purchase price, with no additional import charges payable upon delivery.
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Every Timeless Luxury watch is sourced through our trusted overseas suppliers, including partners who are members of the International Anti-Counterfeiting Coalition (IACC). We proudly guarantee the authenticity of every timepiece we sell, giving you complete confidence in your purchase.
Once your watch arrives in New Zealand, it is independently inspected, tested, and authenticated before returning to Timeless Luxury for final preparation and secure dispatch via signature-required courier, ensuring it reaches you safely and ready to enjoy.
Timeless Luxury provides a 6 months warranty which covers mechanical faults. Read more.
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Frequently asked questions
Every watch is independently inspected, tested, and authenticated in New Zealand before dispatch. We guarantee authenticity and source every timepiece through trusted overseas suppliers, including partners who are members of the International Anti-Counterfeiting Coalition (IACC).
In-stock ships now; globally sourced watches typically arrive in 2–3 weeks. Tracked and insured across NZ & Australia.
A 6-month warranty covering mechanical faults.
Yes, a 7-day grace period so you can be completely satisfied.
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All purchases of pre owned watches come with a 7 day grace period. *Terms apply
It is important to us that you feel completely satisfied with your new timepiece.
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Quality
We only sell watches that meet our high expectations of quality and condition.
Warranty
6 month warranty against fault *Terms apply
Value
We only sell watches that meet our high expectations of quality and condition.
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