excellent / very-good good fair / for-parts full-set comp fair-value band
Market value (excellent · full set)
$6,470
typical range $6,239–$6,768 · 24 comparable sales · HIGH CONFIDENCE
Not enough recent sales to read momentum
The Speedmaster Professional with caliber 3861 is the current-production Moonwatch — the watch flight-qualified by NASA for extravehicular activity in 1965 and continuously produced (with movement updates) ever since. The 3861 introduced co-axial escapement, a Si14 silicon balance spring, and METAS Master Chronometer certification in 2021; the silhouette is otherwise unchanged.
What it is
The Speedmaster Professional traces back to 1957 (CK 2915). The 3861 replaced the caliber 1861 in 2021 and is the first co-axial Master Chronometer Moonwatch — the movement is METAS-certified to ±0/+5 seconds-per-day accuracy and resists magnetic fields up to 15,000 gauss. Cosmetic changes are subtle: a stepped dial, applied "Omega" logo (vs printed), and a slimmer bezel ring.
The hesalite-crystal variant retains the period-correct look; the sapphire-sandwich variant trades closer-to-original look for clarity.
Buying notes
Common things to check: hesalite vs sapphire (price, weight, and resale market both vary); bracelet (the brushed-link Speedmaster bracelet ships with the watch but many sellers separate it — confirm it is included); dial freshness (creamy-aged tritium lume from the older 1861 sometimes shows up in pre-3861 watches misadvertised as 3861); case-back engraving (the 3861 case-back shows the seahorse and the Master Chronometer wording).
Market read
Current-production stock is widely available at retail and the market premium over MSRP has compressed in the last 18 months. Pre-owned examples within 2 years of purchase frequently trade for less than retail — a relatively rare position for an Omega sport-chronograph and a real buying opportunity for a new collector. Hesalite examples tend to hold value better than sapphire over a 5-year horizon, on current data.
Service expectations
The 3861 carries an extended Omega service interval (~5–8 years between services in normal use). Master Chronometer certification means the movement holds its tolerance much longer than the 1861 generation. A recent factory service is worth meaningful money on the resale market and is reflected in the Grail Atlas service-state adjustment.
Editorial copy is hand-authored, not LLM-extracted. Signals on this page (community, OSINT) are clearly separated from editorial sections like this one.
Movement tier — unclassified · caliber 3861
Grail Atlas ratings
Reliability
FAIR
medium confidence provisional
Quality
STRONG
low confidence provisional
Value
STRONG
low confidence provisional
Ratings are computed from 6 community / OSINT signals, weighted by source credibility and validation state — never from unvalidated OSINT alone. A rating is "provisional" until enough owner reports back it.
Signals — 6
expert reviewedThe hand-wound 3861 is a proven, durable caliber. reliability · expert-review · positive
community validatedThe Hesalite crystal scratches easily, though light marks polish out. wear · forum · negative
osint unvalidatedChronograph service is more involved and costlier than a time-only watch. service · youtube · neutral
expert reviewedFit and finish is excellent and historically faithful. general · expert-review · positive
community validatedThe 3861 Speedmaster holds its value steadily. value · established-publication · positive
disputedSteady supply weighs slightly on short-term resale. value · forum · negative
Inspection Map shown for an anonymous visitor. 1 reputation-gated counterfeit-tell point(s) are withheld — visible only to high-reputation contributors, so the knowledge base does not freely train counterfeiters.
Inspection Map — 3 visible point(s)
feature · dial
Step dial & applied logo
The 3861 has a stepped dial; the Omega logo is applied metal, not printed.
wear-point · crystal
Hesalite crystal scratches
The acrylic crystal scratches easily; light scratches polish out, deep ones do not.
Ask: “Angled photo of the crystal under light.”
service-check · pushers
Chronograph pusher feel
Pushers should actuate cleanly; mushy or sticky pushers suggest a service is due.
Ask: “Does the chronograph reset crisply to zero?”
⚓ Auction — 11 bids · outlook: fairForecast sale price $6,470 (typically $6,239–$6,768). Reserve: reserve not met.
↓ May be worse than described — Across 14 past sales, this seller's watches have tended to grade slightly below the stated condition — inspect closely; it may present closer to “very-good”.
Omega
Speedmaster Professional
Ref. 310.30.42.50.01.002 · Chrono24 · ships from US
Originality not assessed
GRAIL
Landed cost (to US)
$6,251
asking 5,650 USD · +ship/duty/tax $601
Value vs market
GOOD DEAL
about 9% below the typical price
HIGH CONFIDENCE
typical range $6,613–$7,175 · 24 comps
Trust · SAFE
Platformstrong
Listingstrong
Sellerstrong
inspection photos 83%
💬 Seller accepts offersSeller accepts offers. Without more context on the listing, accepted offers typically run about 7% below ask — a reasonable offer would put this near 5,254.5 USD.