Omega Speedmaster Moonwatch Professional
10 % 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
Lift angle 50° — 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. 310-30-42-50-01-004 — Variants and collector names
Known as: Sapphire Sandwich, 3861 Sapphire Bracelet, Moonwatch Pro Sapphire, Speedy Sapphire
Production phases and changes
- 2021: Introduction of the 310.30.42.50.01.001 (Hesalite) and .002 (sapphire) with Cal. 3861 and the original 5-link bracelet without micro-adjust
- 2022: Introduction of the 310.30.42.50.01.004: sapphire sandwich version with revised folding clasp (comfort adjustment system)
- 2023: Retrofit kit (part no. 117Z017553) available for 2021 bracelet owners
Movement variants
- 3861 (2022–today) · 21600 bph
Bezel variants
- Speedmaster-DON-Alu-Schwarz-Tachy-310.30 "DON Bezel"
Dial variants
- Black Step Dial Sapphire Sandwich — PROFESSIONAL / CHRONOGRAPH / SWISS MADE; applied Omega logo 12 o'clock; applied hour markers (baton indices); subdials: small seconds 9h, 30-min counter 3h, 12h counter 6h
Bracelet variants
- Moonwatch 5-Bogen Stahl (komplett gebürstet, Push-Button Micro-Ajust Clasp) Ref. SpeedyMoon-42-5Bogen-Stahl-Gebürstet-MicroAjust-2022
Serial numbers
- 93000000 – ? (2022–?) — Omega has used purely numeric serial numbers since approximately 2008. Current production is in the 90+ million range. No publicly documented reference-specific serial ranges. Serial number engraved on the movement plate (visible through the exhibition caseback).
See the 310.30.42.50.01.004 sitting in a display case, and you're looking at the second generation of the sapphire sandwich Moonwatch. Omega introduced the predecessor, the .002, at Watches & Wonders in January 2021 — back then still with the original 5-link bracelet and just 2.3mm of half-link adjustment, with no tool-free micro-adjustment at all. The .004 followed in 2022 with a reworked fold-over clasp and a genuine comfort extension system. Under the hood, both references share the same movement: the Co-Axial, chronometer-certified Caliber 3861.
## The Sandwich Dial with the Step and the DON Bezel
Collectors know this dial as the Black Step Dial Sapphire Sandwich — an applied, multi-tiered construction that layers the sapphire disc over the luminous material instead of printing on it in the conventional way. Then there's the black aluminum tachymeter bezel, known in the community as the DON Bezel. On forums and among collectors, the reference also circulates under names like Moonwatch Pro Sapphire or simply Speedy Sapphire — four common names for one and the same watch.
## Why the Clasp Became the Real Talking Point
Starting in May 2023, owners of the .001 and .002 could retrofit their watches: Omega released a retrofit kit under part number 117Z017553 that swaps out the old 2021 clasp entirely for the .004's micro-adjust version. For the pre-owned market, that means a 2021 watch fitted with the retrofitted clasp is mechanically all but identical to the .004 — a detail worth keeping in mind when comparing prices between the two references.
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 Moonwatch Professional
Entry into Omega
At $10,602 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 51.1 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 Speedmaster Moonwatch Professional 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 Moonwatch Professional.
- 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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