Omega Constellation Co-Axial Master Chronometer 41mm Men
9 % 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.
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 $7,839. 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
Omega Ref. O13133412104001 — Variants and collector names
Movement variants
- 8900 (2020–today) · 25200 bph
Bezel variants
- Constellation-41-Stahl-Blau-Keramik-GrandFeu-Weiss-Roemerziffer
Dial variants
- Constellation-41-33-04-White-Ceramic — White ceramic dial; blue polished hands, blue Omega logo, Constellation star and faceted baton indices; date at 6 o'clock
Crystal variants
- Saphir-Dom-AR-beidseitig-Constellation-41
Bracelet variants
- Blaues Alligatorlederband mit Gummifutter Ref. Constellation-41-Stahl-Blau-Alligator-Gummi-Deployant
Serial numbers
- ? – ? (2020–?) — Since 2019/2020 Omega has used randomized 8-digit serial numbers with no sequential production correlation. No public serial range data available.
Reference 131.33.41.21.04.001 belongs to the Omega Constellation Co-Axial Master Chronometer line and brings together an unusual combination: a 41 mm steel case, a blue ceramic bezel with white Grand Feu enamel Roman numerals, and a dial made of white ceramic. Two ceramic components on one watch is the exception rather than the rule, even for Omega.
## The bezel is what sets it apart from the standard Constellation
On most 41 mm Constellation references, the bezel stays smooth-polished or carries the four classic claws. Here, blue ceramic takes over the outer ring, while white Grand Feu enamel fires the Roman numerals into the surface instead of simply printing them on. The enamel technique calls for several firings at over 800 degrees Celsius, and any deviation in the kiln shows up immediately as a color flaw on the finished numeral.
## Caliber 8900 under the hood: 60 hours between winds
Inside sits the caliber 8900, a Co-Axial Master Chronometer with a 60-hour power reserve and a free-sprung balance in place of a classic hairspring. METAS certifies the movement across eight separate tests, including magnetic resistance up to 15,000 gauss, a level mechanical calibers without silicon components simply can't reach.
## What I check first on this reference
The depth of color in the blue ceramic tells you more in raking light than any authenticity certificate ever could, replicas tend to skew a shade too gray or too violet here. Along the edge where the enamel meets the ceramic, there should be no visible bead of adhesive, the transition needs to run smooth with no step. Through the sapphire caseback, the Geneva seal finish on the movement bridge should be visible, a detail most fakes simply leave out.
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 Constellation Co-Axial Master Chronometer 41mm Men
Entry into Omega
At $7,839 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.
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 Constellation Co-Axial Master Chronometer 41mm Men 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 Constellation Co-Axial Master Chronometer 41mm Men.
- 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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