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Omega Seamaster Aqua Terra 150M GoodPlanet (Titanium)

231.90.39.21.04.001 Archive · used only

The Omega Seamaster Aqua Terra 150M GoodPlanet (Titanium) was a 38.5 mm Grade 5 titanium dress watch with an Omega Caliber 8500 automatic movement. Rated to 150 m, only three of the 461 other titanium dress watches in the guide go deeper. It is no longer made, so this page is a reference for buying one used.

All Omega watchesDress watchesGrade 5 titaniumOn a titanium braceletDisplay back
Material
Titanium
Grade / type
Grade 5
Water resistance
150 m
Reference
231.90.39.21.04.001
Type
Dress
Price
– · Secondary market only
Case diameter
38.5 mm
Origin
Switzerland
Movement
Co-Axial chronometer (>15,000 gauss anti-magnetic)
Caliber
Omega Caliber 8500
Power reserve
60 h
Complications
Date
Colour
Grey
Surface treatment
Brushed and polished
Finish technology
Natural finish
Caseback
Titanium
Nickel-free
Unconfirmed (clasp or buckle material not confirmed)
Bracelet / strap
Titanium bracelet; push-button deployant clasp
Matching bracelet
Standard
Crystal
Sapphire, AR coated
Display back
Yes
Dial
White lacquered, applied blue indexes
Dial colours
White Blue
Lume
Super-LumiNova
Availability
No longer offered
Status
No longer in production (2014 GoodPlanet Foundation edition)
Not published
Thickness, Lug-to-lug, Weight, Hardness, Construction
High confidence Verified Jun 2026 Source: Omega (maker) / AuthenticWatches Suggested by u/Watches-and-Books
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OmegaSeamaster Aqua Terra Ultra Light (Gamma Titanium)$48,60041.0 mm13.48 mm thick74 gDressOmega Seamaster Diver 300M 007 Edition (Titanium)OmegaSeamaster Diver 300M 007 Edition (Titanium)$11,30042.0 mm95 gDiverOmega Seamaster Aqua Terra 150M Worldtimer (Titanium)OmegaSeamaster Aqua Terra 150M Worldtimer (Titanium)$14,00043.0 mm93 gOther

Frequently asked questions

What grade of titanium is the Omega Seamaster Aqua Terra 150M GoodPlanet (Titanium)?

Grade 5, as stated by the maker. The caseback is titanium too.

What size is the Omega Seamaster Aqua Terra 150M GoodPlanet (Titanium)?

The case is 38.5 mm across. It is water resistant to 150 m.

How much does the Omega Seamaster Aqua Terra 150M GoodPlanet (Titanium) cost, and is it available?

It is no longer made, so the only way to buy one is used.

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