Omega Seamaster Planet Ocean
48 % below RRP
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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.
The current market value of the Omega Seamaster Planet Ocean (Ref. 215.30.44.21.01.001) is $4,694. The trend points down (-17.8% over four months).
What if you had bought back then …
What would a purchase at the median market price back then have become — at today's level of $4,694. A pure return calculation, excluding insurance, servicing and transaction costs.
Data from an aggregated median time series (watch_market_daily). CAGR = Compound Annual Growth Rate, normalized to 365 days. Not an investment recommendation.
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Technical data
Lift angle 52° — important for timing-machine diagnosis: with this value a watchmaker can correctly measure rate deviation, amplitude and beat error. ChronoCheck verifies such technical details directly from the manufacturers' factory specifications.
Omega Ref. 215.30.44.21.01.001 — Variants and collector names
Known as: Planet Ocean 600M Gen 3, PO600M 43.5, Third Gen PO, Black/Black PO, Master Chronometer Planet Ocean
Production phases and changes
- 2016: Generation 3 introduction: case grows from 42 mm (Gen 2) to 43.5 mm. Cal. 8507/8520 (Co-Axial, not METAS) replaced by Cal. 8900 (Master Chronometer, METAS-certified, 15,000 Gauss). Full ceramic bezel + full ceramic dial. Revised bracelet with shorter first center links and 5-position foldover diver clasp.
- 2024: Discontinuation of Gen 3 references (215.30.44.xx). Three boutique special editions appear as a swan song. Generation 4 (Ref. 217.xx, 42 mm, no date, no helium escape valve, 13.79 mm case height instead of 16.5 mm, new angular lugs) replaces the line.
Movement variants
- 8900 (2016–2024) · 25200 bph
Bezel variants
- PO-Orange-ZrO2-Ceramic-Liquidmetal-60min "Orange Ceramic Diver"
- PO600M-39.5-Blau-Keramik-Liquidmetal-60min
- PO600M-39.5-Schwarz-Keramik-Liquidmetal-60min
- PO600M-43.5-Schwarz-Orange-Hybrid-Keramik-Gummi-60min "Black/Orange Hybrid Bezel"
Dial variants
- Creamsicle White Dial — SEAMASTER / PLANET OCEAN 600M (black) · Arabic numerals in lacquered orange · Date 3 o'clock · seconds hand tip orange
- PO600M-39.5-Schwarz-Keramik-Arabisch-Datum — Arabic numerals; date 3h; black ceramic dial; 39.5mm
- PO600M-43.5-Blau-Keramik-Arabisch-Datum — SEAMASTER above / PLANET OCEAN 600M / Co‑Axial Master Chronometer / Date 3 o'clock / Arabic numerals 3-6-9-12 / seconds hand tip orange
Crystal variants
- Saphir-AR-beidseitig-PO600M-43.5
Bracelet variants
- Planet Ocean 3-Link Stahl gebürstet/poliert Ref. PO-43.5-3Link-Steel-2016
Serial numbers
- 80000000 – 90000000 (2016–2018) — Sequential 8-digit serial number, engraved between the lugs. Rough estimate: 2016 ~80M, 2017 ~84M, 2018 ~88M. From approx. 2019 (after reaching ~99,000,000) Omega switched to randomized serial numbers — dating by serial number has not been possible since.
At BaselWorld 2016, Omega unveils the third generation of the Planet Ocean 600M, and the numbers tell you exactly what's going on. The case grows from 42 to 43.5 millimeters, and the Caliber 8507/8520 gives way to the 8900, now with METAS certification and 15,000 gauss of antimagnetic resistance. Reference 215.30.44.21.01.001 represents the black base version of the line, with dial and bezel both made entirely of ceramic.
## The Bracelet Gets a Fifth Notch
Small details tend to get left out of reviews, but this is where the real engineering happens. The first center links get shorter, and the fold-over clasp now has five notches for on-the-wrist adjustment. At 16.5 millimeters thick, the case remains a diving tool, not an office accessory.
## 2024: Three Boutique Editions as the Final Word
Eight years after its Basel debut, production of the 215.30.44 series comes to an end. In 2024, Omega releases three special editions as a send-off, before the fourth generation officially takes over in 2025 under reference 217.xx: 42 millimeters instead of 43.5, no more date, no helium escape valve, and a case height of just 13.79 millimeters instead of 16.5. Anyone seeking out the 215.30.44.21.01.001 today is buying a closed chapter of model history.
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 Planet Ocean
Entry into Omega
At $4,694 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.
Where the price stands
The price has fallen by -17.8% over the past four months. No crash, but a clear downward trend. Buyers currently have room to negotiate; sellers are better off waiting for the market to bottom out — unless they have to sell.
Watch out for swings: This reference has an above-average volatility of 87.8 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 Planet Ocean 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 Planet Ocean.
- 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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