Omega

Seamaster Aqua Terra GoodPlanet Titanium 38.5mm | Ref. 231.90.39.21.04.001 | 2018 Mint Full Set

$6,950.00 $6,250.00
Sold Unavailable
Reference231.90.39.21.04.001
Year2018
SetFull Set
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A discontinued Aqua Terra made entirely in titanium. This 38.5mm Omega Seamaster Aqua Terra GoodPlanet Ref. 231.90.39.21.04.001 is crafted from Grade 5 titanium and weighs 90 grams, with a white lacquer dial, blued hands and applied indices. A complete 2018 Full Set in mint condition, it is powered by the twin-barrel in-house Co-Axial Calibre 8500 with a 60-hour power reserve. With 150m water resistance and a solid titanium bracelet, it wears light enough for every day.

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Shipping & Contact

United States: free, fully insured delivery, estimated 1 to 3 business days. An adult signature is required; deliveries are made Monday to Saturday, 8:00 AM to 6:00 PM local time. No P.O. boxes or forwarding services.

United Kingdom: fully insured delivery. Prices are charged in US dollars. UK import VAT and any customs duty are not included in the price: the carrier collects them from the recipient before delivery.

Gulf (UAE, Qatar, Saudi Arabia, Kuwait, Bahrain, Oman): fully insured courier. Shipping is quoted per watch and invoiced separately after your order. Import duties and VAT are paid by the recipient on arrival (DAP).

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Return Policy (Pre-Owned Watches)

We specialize in pre-owned luxury timepieces.
• Returns accepted within 3 days of delivery
• Item must be in the same condition as received
• Must include all original accessories (box, papers if applicable)

All returns are subject to inspection prior to refund approval.

Our Guarantee

✔ Lifetime Authenticity Guarantee. Every watch is verified authentic before it is listed. Full terms: The Vetting

Seamaster Aqua Terra GoodPlanet Titanium 38.5mm | Ref. 231.90.39.21.04.001 | 2018 Mint Full Set

Seamaster Aqua Terra GoodPlanet Titanium 38.5mm | Ref. 231.90.39.21.04.001 | 2018 Mint Full Set

$6,950.00 $6,250.00
$6,950.00 $6,250.00

PRODUCT SPECIFICATIONS

MODEL
Seamaster Aqua Terra GoodPlanet Titanium 38.5mm | Ref. 231.90.39.21.04.001 | 2018 Mint Full Set
REFERENCE NUMBER
231.90.39.21.04.001
YEAR
2018
SCOPE OF DELIVERY
Full Set (Original Luxury Omega Presentation Box, 2018 Dated International Warranty Card, Pictogram Card, GoodPlanet Foundation Literature, Operating Manuals)
Seamaster Aqua Terra GoodPlanet Titanium 38.5mm | Ref. 231.90.39.21.04.001 | 2018 Mint Full Set
CASE DIAMETER
38.5mm Diameter / Featherlight Ergonomic Profile (~90 grams total weight / Grade 5 Titanium)
CASE SIZE
38.5mm
Seamaster Aqua Terra GoodPlanet Titanium 38.5mm | Ref. 231.90.39.21.04.001 | 2018 Mint Full Set
MOVEMENT
Omega In-house Co-Axial Calibre 8500 (Automatic / Twin Barrels / ~60-Hour Reserve)
Seamaster Aqua Terra GoodPlanet Titanium 38.5mm | Ref. 231.90.39.21.04.001 | 2018 Mint Full Set
STRAP MATERIAL
Original Grade 5 Titanium Bracelet with Folding Butterfly Clasp (Full Links)
Seamaster Aqua Terra GoodPlanet Titanium 38.5mm | Ref. 231.90.39.21.04.001 | 2018 Mint Full Set

Physician-Led Vetting

Authenticated, graded and documented in-hand before it is listed.

Authenticated

Calibre, case, dial and papers examined for originality.

Insured Shipping

US: free, fully insured, adult signature required. UK: fully insured; UK import VAT and duty are paid by the recipient on arrival. Gulf: insured courier, shipping invoiced separately. Duties and VAT paid by the recipient on arrival.

Honeyrock Guarantee

Lifetime authenticity guarantee on every piece. Full terms on our vetting page.

The Story

The Story

The Omega Seamaster Aqua Terra GoodPlanet was born out of an exclusive partnership between Omega and the GoodPlanet Foundation, honoring ocean conservation and environmental sustainability. While traditional steel Aqua Terras are celebrated as the quintessential "one-watch collection," the reference 231.90.39.21.04.001 completely redefines wrist ergonomics by executing both the 38.5mm case and full bracelet in aerospace-grade Grade 5 titanium. Now officially discontinued, this featherlight instrument (~90 grams) bypasses standard blue and black sports watch templates to present a pure, architectural aesthetic tailored for the discerning collector who demands extreme material innovation and under-the-radar exclusivity.

The Craft: Grade 5 Titanium Ergonomics & Blued Steel Contrasts

The 38.5mm Grade 5 titanium case displays exceptional finishing, pairing satin-brushed profiles with mirror-polished lyre lugs. Unlike Grade 2 titanium, Grade 5 can be polished to a high mirror sheen while offering twice the tensile strength of stainless steel at nearly half the weight.

The white lacquer dial opts for a smooth, porcelain-like glossy surface instead of the standard teak concept lines. It is dramatically elevated by thermally blued applied hour markers and matching arrowhead hands, creating a clean, high-contrast aesthetic that shifts from vibrant electric cobalt under sunlit angles to deep navy in low light. A crisp date window sits gracefully at 3 o'clock.

Turn the watch over to view the engine through the sapphire exhibition caseback: the In-house Co-Axial Calibre 8500. Built with twin barrels mounted in series, it provides a smooth 60-hour power reserve and outstanding chronometric accuracy. Engineered for mechanical endurance, it features a free-sprung balance and silicon hairspring for anti-magnetic reliability, supported by a screw-down crown for a professional rating of 150 meters (500 feet) of water resistance.

Condition & Discontinued 2018 Full Set

This collector-grade GoodPlanet Aqua Terra is presented in true Mint condition. The Grade 5 titanium case, polished bezel facets, and full titanium bracelet show no notable signs of handling or wear, with immaculate sapphire crystals on both sides.

The timepiece arrives as a 2018 Full Set, complete with its original Omega luxury presentation box, outer packaging, operating manuals, Pictogram card, GoodPlanet literature, and the original international warranty card dated in 2018. Inspected and tested for timing and amplitude before listing, this 38.5mm titanium Aqua Terra is ready for daily wear.

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