The clearest match for a green-dial steel Omega Seamaster Aqua Terra is reference 220.10.38.20.10.001, a 38 mm model in the Aqua Terra Shades family. Omega lists a 55-hour power reserve, METAS Master Chronometer certification and 150 m water resistance. “Green Aqua Terra” can also describe watches with different sizes, materials and dial treatments, so the reference matters. The available product information establishes specifications, not firsthand wrist impressions.
Which green Aqua Terra is this?
Omega’s product sheet identifies reference 220.10.38.20.10.001 as a 38 mm stainless-steel Aqua Terra 150M with a green dial, steel bracelet and calibre 8802. Omega’s Shades collection overview describes a nature-inspired palette that includes Lagoon Green and says the collection came in polished stainless-steel cases measuring 38 mm and 34 mm. The collection overview does not establish that every color and size is currently offered in every market.
Omega’s announcement described the collection this way: “The Aqua Terra Shades collection takes OMEGA watchmaking in a vibrant new direction.” Omega’s Aqua Terra Shades announcement and the Hong Kong product sheet for reference 220.10.38.20.10.001 are the relevant official sources for the collection and this specific watch.
What Omega specifies for the 38 mm steel model
The following figures are manufacturer specifications for reference 220.10.38.20.10.001, not independent measurements or test results. Omega’s product sheet does not state a publication year.
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| Specification | Omega’s stated detail |
|---|---|
| Case | Stainless steel; 38 mm diameter; 19 mm between the lugs; 45.00 mm lug-to-lug; 12.68 mm thick |
| Approximate total weight | 124 g |
| Dial and display | Green dial, small seconds at 6 o’clock, date and transparent caseback |
| Movement | Self-winding Co-Axial calibre 8802; 55-hour power reserve |
| Certification and magnetic resistance | METAS Master Chronometer certified; resistant to magnetic fields up to 15,000 gauss |
| Crystal | Domed, scratch-resistant sapphire with anti-reflective treatment on both sides |
| Water resistance | 15 bar (150 m / 500 ft) |
| Bracelet and clasp | Stainless-steel bracelet with butterfly clasp |
How to distinguish it from other green or colorful Aqua Terras
Dial color alone is not enough to identify a model. Omega’s published examples differ in size, case material and color treatment.
| Model or family | What the cited Omega source establishes | How it differs from the 38 mm steel Lagoon Green reference |
|---|---|---|
| 220.10.38.20.10.001 | 38 mm stainless-steel case, green dial, calibre 8802; detailed specifications in Omega’s product sheet | The documented steel green-dial reference discussed here |
| 30 mm Pine Green, 220.20.30.20.10.002 | Omega’s 3 November 2025 festive-season guide identifies a 30 mm model combining stainless steel and 18K Sedna Gold, with a sun-brushed pine-green dial and boat-hull-shaped markers | Smaller two-tone model with a separately identified green shade and dial treatment |
| Turquoise models, 38 mm and 41 mm | Omega’s 14 August 2025 announcement describes turquoise varnish dials with black gradient effects, matt black ceramic bezels and integrated black structured rubber straps with turquoise stitching. The 38 mm uses calibre 8800 with a 55-hour reserve; the 41 mm uses calibre 8900 with a 60-hour reserve. Both are listed at 15 bar water resistance. | Turquoise, not green; different dial, bezel, strap and movement specifications |
See Omega’s Festive Season 2025 guide for the 30 mm Pine Green watch and its turquoise-model announcement for the two summer releases.
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What the size figures can—and cannot—tell you about fit
The 38 mm diameter is only one part of how a watch wears. Omega also gives this reference a 45.00 mm lug-to-lug length and 12.68 mm thickness. Those measurements let a buyer compare the case with a watch already owned, but they cannot establish how it will sit on a particular wrist. The cited Omega material provides no wearer-specific fit guidance or independent wrist test.
If size is your main concern, compare all three dimensions—not just 38 mm—with a watch whose fit you know. Also check the exact reference: Omega’s Shades overview mentions both 38 mm and 34 mm cases, while the separately documented Pine Green model is 30 mm.
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Price and availability
The cited product sheet contains no current price or inventory information. Price and stock can vary by market and date, and the Shades overview does not confirm present availability of each color-size combination. Check Omega or an authorized retailer in your market, and verify that a listing names reference 220.10.38.20.10.001 if you want the 38 mm steel model described here.
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