Omega Seamaster Aqua Terra 150m Co-Axial Master Chronome
at RRP level
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ℹ️ 1-month trend
Price change over the past 30 days. Shows the short-term market movement — relevant if you want to buy or sell soon.
ℹ️ 4-month trend
The central metric behind the momentum score. It filters out short-term swings and shows the true, medium-term market trend of this reference.
ℹ️ Volatility
Annualised price fluctuation. Below 10 % = very stable, 10–20 % = normal, above 20 % = volatile. With high volatility the price can change quickly — in both directions. Be cautious about buying without checking the current price.
ℹ️ Momentum score
ChronoCheck's own indicator from 0 to 100, calculated from the 4-month trend, volatility and market direction.
- Above 60 — Upward trend. Good time to sell, prices are rising.
- 40 – 60 — Neutral. Stable price level, no pressure to act.
- Below 40 — Downward trend. Wait or enter at a good price.
ℹ️ Investment Grade A/B/C/D
ChronoCheck's own rating for each reference. A 0–100 point scale, made up of four weighted components:
- Momentum (40 pts) — trend strength from the momentum score.
- Liquidity (25 pts) — number of active live listings.
- Stability (20 pts) — inverse volatility — the calmer, the better.
- Source robustness (15 pts) — number of independent market sources.
- A · 75+ Trend is right, liquidity good, data broad.
- B · 55–74 Solid, but one component weaker.
- C · 35–54 Average, volatility or market breadth weigh on it.
- D · below 35 Downward or too little data — a collector's piece.
Not investment advice. Pure data analysis from aggregated market sources.
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Technical data
Omega Ref. O22010382010002 — Variants and collector names
Known as: Aqua Terra Shades Bay Green, AT Shades Green 38, Bay Green Shades
Production phases and changes
- 2023: Date window revised from frameless (Frameless) to framed (Framed)
Movement variants
- 8800 (2022–today) · 25200 bph
Bezel variants
- Fixed-Steel-Polished-AT38
Dial variants
- Bay Green Shades Framed — SEAMASTER / AQUA TERRA / 150M / Co-Axial Master Chronometer; no teak pattern; rhodium-colored sailboat-hull indices (sailboat-hull); framed date at 6h
- Bay Green Shades — SEAMASTER / AQUA TERRA 150M / date at 6h / rhodium-plated applied baton indices
Crystal variants
- Saphir-AR-beidseitig-AT38
Bracelet variants
- Aqua Terra 38 Stahl Integriert Comfort-Release Ref. AT38-3Link-Steel-ComfortRelease-2022
Reference 220.10.38.20.10.002 belongs to the Aqua Terra Shades collection, which collectors call the "Bay Green Shades" — a 38-millimeter steel case, Caliber 8800 at its core, and a fixed polished steel bezel with no ceramic insert. Dealers also refer to it as the "AT Shades Green 38," or simply "Bay Green Shades" for short — three names for one and the same dial in that shifting bay-green hue.
## The Frame Nobody Saw Coming
The dial launched in 2022 with a frameless date window, a design that fell flat with collectors and the trade press alike. Omega responded in 2023 with an applied frame around the date window, a purely cosmetic fix — the reference number stayed 220.10.38.20.10.002. Anyone holding a Bay Green Shades today should look for exactly this detail: the frameless dial carries the code Shades-BayGreen-Frameless-2022, while the revised version runs internally as Shades-BayGreen-Framed-2023. Two years, one frame, two collector markets.
## Why It Matters for Resale
On a watch that's otherwise technically identical, a single millimeter of frame width can decide collector value. Buyers specifically chasing the 2022 frameless version pay a premium for it, simply because fewer were made than the framed variant produced from 2023 onward. Before buying, it pays to take a loupe straight to the edge of the date window — not to the papers or the receipt. Caliber 8800 and the fixed polished steel bezel stay the same across both versions; the dial is what decides.
We're happy to appraise your Aqua Terra Shades Bay Green as well.
Brand profile: Omega
Omega is the second most counterfeited Swiss watch brand. The Speedmaster and Seamaster are especially targeted. Pay close attention to movement details (Co-Axial) and dial textures.
- Speedmaster: The chronograph reset hand must snap back precisely to 12 o'clock — fakes stop 1–3 seconds off or wobble
- Speedmaster (Hesalite): The Omega logo is micro-laser-etched on the UNDERSIDE of the Hesalite crystal — only visible at a specific angle and in the right light — fakes omit it or place it incorrectly
- Seamaster: The wave-pattern dial must be ENGRAVED (tactile relief) — printed/flat wave lines = fake
- DON (Dot Over Ninety): small dot ABOVE the '90' on the Speedmaster tachymeter bezel — position/size often wrong on fakes
Serial number format: Omega serial number: 8-digit number on the caseback or between the lugs (on older models). Since ~2018 engraved on the caseback at 6 o'clock. Format: purely numeric. Verifiable on the Omega website with an extract from the archive.
Further sources
Buying guide: Omega Seamaster Aqua Terra 150m Co-Axial Master Chronome
Entry into Omega
At $8,432 this reference is one of the more affordable ways to wear a Omega on your wrist. That is precisely why many pieces have already passed through several hands — condition varies accordingly. Buyers here should pay particular attention to service history and honest photos from the seller.
Watch out for swings: This reference has an above-average volatility of 51.5 percent. In concrete terms: the price can move by several hundred euros within a few weeks. Check the current value before buying or selling — old listings or auction results from two months ago are of little help.
What to look out for when buying?
- Authenticity: The serial number and reference on the case must match the papers. A professional authenticity check of the Omega Seamaster Aqua Terra 150m Co-Axial Master Chronome reliably rules out counterfeits.
- Condition: Check scratches on the case and bezel — professional refurbishment can leave traces.
- Service history: A documented service by the manufacturer or a certified watchmaker increases the value.
- Scope of delivery: Box, papers and warranty card make a noticeable price difference on the Seamaster Aqua Terra 150m Co-Axial Master Chronome.
- Independent certification: The CPS-52 standard covers 52 checkpoints — from the serial number and the timing machine to water resistance. The result is secured on the blockchain and can be verified at any time.
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