Omega Speedmaster Racing Co-Axial Master Chronometer Chr
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.
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Technical data
Omega Ref. O32923445106001 — Variants and collector names
Known as: Speedy Racing Bicolor, Racing Sedna Grey, Speedmaster Racing Sedna
Movement variants
- 9900 (2017–today) · 28800 bph
Bezel variants
- SpeedyRacing-329.23-SednaGold-SiN-Ceragold-Tachy "Bicolor Sedna Tachy"
Dial variants
- Racing Grey Sedna — OMEGA / Speedmaster / Racing / Co-Axial Master Chronometer / Chronograph – 2 totalizers with rhodium-plated applied rings, date 6h
Crystal variants
- Saphir-Dom-AR-beidseitig-SpeedyRacing-44.25mm
Bracelet variants
- Grauer Alligator-Lederriemen mit Sedna-Gold-Faltschließe Ref. SpeedyRacing-Grau-Alligator-SednaGold-Foldover-329.23
The Speedmaster Racing Sedna Bicolor pairs steel with 18-karat Sedna gold, Omega's own alloy with a higher copper content for a warmer rosé tone. The case measures 44.25mm, and the black Ceragold ceramic bezel carries the tachymeter scale up to 500 units per hour, rimmed in Sedna gold. In my workshop, I see this bicolor combination less often than the pure steel Racing, and supply on the pre-owned market is correspondingly limited.
## The Grey Dial with the Racing Minute Track
Collectors know this dial variant as Racing Grey Sedna. The standout feature is the red-and-black Racing-style minute track, paired with indices and hands in Sedna gold to match the bezel. Three subdials handle the chronograph seconds, 12-hour counter, and 30-minute counter, a layout that's remained unchanged across the Racing line for years and therefore serves as a reliable reference point during inspections.
## Caliber 9900 as the Technical Backbone
The reference is powered by the Co-Axial Master Chronometer Caliber 9900, with column-wheel switching, 54 jewels, and a 60-hour power reserve on a full wind. The co-axial escapement noticeably reduces friction between the pallet stones compared to classic Swiss lever escapements, and the METAS certification additionally demands accuracy of 0 to +5 seconds per day under everyday conditions, including a magnetic field test up to 15,000 gauss.
## How I Identify This Reference in Practice
During inspections, I first check the color match between the Sedna gold applications and the bezel setting—counterfeiters often use gold with a yellowish cast instead of the warm, copper-toned Sedna alloy. Second, I look at the minute track, where the red tone on fakes is often too garish. Third, I check the case back engraving: reference number 329.23.44.51.06.001 must correspond exactly to the steel-Sedna bicolor execution and Caliber 9900.
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 Speedmaster Racing Co-Axial Master Chronometer Chr
Market situation and price range
At $15,952 the Speedmaster Racing Co-Axial Master Chronometer Chr sits in a segment where first owners sell regularly — clean pieces with box and papers are not uncommon. The jump from "good" to "very good" usually costs 1,000 to 2,000 euros more at purchase. You get that premium back on resale if the condition is preserved.
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 Speedmaster Racing Co-Axial Master Chronometer Chr 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 Speedmaster Racing Co-Axial Master Chronometer Chr.
- 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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