Omega Constellation Co-Axial 36mm Mens Watch Brown
11 % 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.
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Technical data
Omega Ref. O13120362013001 — Variants and collector names
Known as: Constellation 36 Bicolor Brown, Constellation 36 Steel-Sedna Brown, Constellation 36 Two-Tone Brown
Movement variants
- 8800 (2021–today) · 25200 bph
Bezel variants
- Constellation-29-SednaGold-Fixed-RomanNumerals
Dial variants
- Constellation-36-02-Silver-SednaGold-2021 — Opaline silver; applied Sedna Gold indices; OMEGA logo + Constellation star; date at 6 o'clock
- Constellation-36-08-Champagne-SednaGold-2021 — Sun-brushed champagne; applied Sedna Gold indices; OMEGA logo + Constellation star; date at 6 o'clock
- Constellation-36-13-Brown-SednaGold-2021 — Sun-brushed brown; applied Sedna Gold indices; OMEGA logo + Constellation star; date at 6 o'clock
- Constellation-36-52-Silver-Diamond-SednaGold-2021 — Opaline silver; diamond indices; OMEGA logo + Constellation star; date at 6 o'clock
- Constellation-36-58-Champagne-Diamond-SednaGold-2021 — Sun-brushed champagne; diamond indices; OMEGA logo + Constellation star; date at 6 o'clock
Crystal variants
- Saphir-Dom-AR-beidseitig-Constellation-36mm
Bracelet variants
- Mono-Rang Integriert Stahl/Sedna Gold Ref. Constellation-36-MonoRang-Steel-Sedna-2021
## The brown dial that earns its place in a bicolor context
The reference dial on this variant carries a warm brown tone that forms a calm, cohesive picture alongside the Sedna Gold of the case. Four additional dial options exist for this reference — silver, champagne, and two diamond-set versions. All share the same Sedna Gold bezel with Roman numerals: fixed, with no rotating mechanism. On the Constellation, that has been a design principle for over 50 years, not a compromise.
## A calibre that shrugs off magnetic fields up to 15,000 Gauss
Calibre 8800 is METAS-certified and withstands magnetic fields up to 15,000 Gauss — a level at which most ebauches in the same price bracket would already be losing accuracy. Certified rate accuracy runs from 0 to +5 seconds per day, the Co-Axial escapement operates without lubrication at the lever plane, and power reserve stands at 55 hours. Anyone buying this reference should inspect the characteristic case claws: on poor-quality replicas, the bevel is frequently ground down to under 0.3 mm.
We are also happy to purchase your Omega Constellation Bicolor.
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 36mm Mens Watch Brown
Entry into Omega
At $10,047 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 36mm Mens Watch Brown 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 36mm Mens Watch Brown.
- 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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