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The OMEGA Seamaster Aqua Terra Shades 38 mm is a colour-focused version of the Aqua Terra, offered in multiple dial and material combinations. The name alone does not identify a particular watch: compare the reference number and its product sheet before choosing. One documented steel-on-steel reference, 220.10.38.20.10.004, measures 38 mm across and 44.92 mm lug-to-lug, with a 55-hour power reserve and 150 m rated water resistance.
What is the Aqua Terra Shades 38 mm?
OMEGA introduced Aqua Terra Shades in March 2023 as a colour-focused expansion of the Aqua Terra collection. The launch announcement described polished stainless-steel versions in 38 mm and 34 mm, with Co-Axial Master Chronometer movements. OMEGA named Atlantic Blue, Lagoon Green and Terracotta among the original dial colours. These are launch examples, not a complete current catalogue. OMEGA’s launch announcement provides that collection-level context.
The 38 mm size is one part of the product name, not a full specification. Dial shade, case material, strap or bracelet, and technical details depend on the exact reference. For instance, OMEGA’s 2026 Golden Globes coverage identifies a 38 mm example in 18K Moonshine Gold with a sun-brushed green dial and green leather strap, reference 220.53.38.20.10.001. That appearance confirms a material variation; it does not establish every combination currently sold worldwide. OMEGA’s event coverage names the watch and reference.
Specifications for steel reference 220.10.38.20.10.004
The following figures come from OMEGA Hong Kong’s product sheet for this specific steel-on-steel reference, accessed October 8, 2026. They should not be assumed to apply unchanged to every Shades model.
#1 Best Overall
- Omega Seamaster Aqua Terra Automatic Men's Watch 220.10.41.21.01.001
| Specification | OMEGA-listed value |
|---|---|
| Case | Stainless steel |
| Case diameter | 38 mm |
| Between lugs | 19 mm |
| Lug-to-lug | 44.92 mm |
| Thickness | 12.36 mm |
| Movement | Self-winding OMEGA Calibre 8800 with Co-Axial escapement |
| Power reserve | 55 hours |
| Certification | Master Chronometer, approved by METAS |
| Magnetic resistance | Up to 15,000 gauss |
| Water resistance | 15 bar (150 m/500 ft) |
| Crystal | Domed, scratch-resistant sapphire with anti-reflective treatment on both sides |
| Bracelet and clasp | Steel bracelet; foldover butterfly clasp with comfort setting |
These are manufacturer specifications, not results from independent testing. The product sheet for reference 220.10.38.20.10.004 is the relevant source for this table.
Colours, materials and regional availability
OMEGA’s March 2023 launch material names Atlantic Blue, Lagoon Green and Terracotta. A later official example establishes a green-dial Moonshine Gold model with a leather strap, while OMEGA Hong Kong’s collection page presents steel-on-steel 38 mm models. Taken together, these sources show variety in dial colour and materials, but they do not provide a definitive global list of current colours and references.
Rank #2
- Model 220.12.38.20.03.001
OMEGA Hong Kong’s collection page, accessed October 8, 2026, displayed HKD 52,200 for its 38 mm steel-on-steel entries. This is a regional listing, not a global price or a price for every reference; prices and availability can change. Check the live OMEGA Hong Kong collection page and the equivalent official page for your market.
How to assess fit and choose a reference
Start with the reference number
Ask for the full reference and match it to OMEGA’s product page or product sheet. A collection name or dial-colour description by itself is not enough to confirm the case material, bracelet or strap, movement, or dimensions.
Rank #3
- Omega Seamaster Aqua Terra Automatic Men's Watch 220.10.41.21.03.002
Use more than case diameter
For the documented steel reference, OMEGA lists a 38 mm diameter, 44.92 mm lug-to-lug length, 12.36 mm thickness and 19 mm between lugs. Diameter describes only one aspect of how a watch wears; compare the other measurements with a watch you already find comfortable, then try the exact model on if possible. Published dimensions cannot settle fit for every wrist.
Compare the dial and wearing configuration
Check the colour against the exact reference rather than relying on a broad collection description. Confirm whether the watch is on a steel bracelet or leather strap and whether the case is steel or another material. The gold-and-leather example documented by OMEGA is distinct from the steel-on-steel reference detailed above.
Rank #4
- Omega Aqua Terra Automatic Blue Dial Men's Watch 220.12.41.21.03.005
Verify the specifications that matter to you
Check the exact model sheet for movement, reserve, water resistance and magnetic-resistance claims. The Calibre 8800, 55-hour reserve, 15-bar rating and resistance up to 15,000 gauss in the table belong to reference 220.10.38.20.10.004. Do not carry those figures over to a different reference without confirmation.
Check the terms where you plan to buy
Before committing, verify local price and stock, seller authorization, warranty coverage and return terms for the exact reference. The cited Hong Kong price is not evidence of pricing or availability in another market.
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- Omega Seamaster Aqua Terra Automatic Men's Watch 220.10.41.21.10.001
Is the Aqua Terra Shades 38 mm worth considering?
It is worth considering if you want an Aqua Terra in a more colour-led configuration and have identified a specific reference whose dimensions and materials suit you. The documented steel model combines a 38 mm case with a 44.92 mm lug-to-lug measurement and manufacturer-listed Master Chronometer specifications. Whether that case wears well on your wrist, and whether a particular dial or material is available at a price you accept, requires checking the exact watch and local listing.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.




