Omega Speedmaster Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Sapphire / Calf
Reference 310.32.42.50.01.002
About this watch
The Omega Speedmaster Professional Moonwatch 3861 is an engineering marvel that combines style with functionality, paying homage to its illustrious past as the first watch worn on the moon. This iconic timepiece boasts a sleek, matte black dial and polished stainless steel case, striking an excellent balance between boldness and subtlety. At its heart lies the Omega caliber 3861, an updated version of the legendary caliber 861/1861, featuring a Co-Axial escapement and silicon balance spring for accuracy and resistance to magnetic fields up to 15,000 gauss. The watch's robust stainless steel construction and sapphire crystal provide a durable exterior and protect the watch face from scratches, while its water resistance of 50 meters ensures it can withstand accidental splashes. With an open case back revealing the intricate movement within, this timepiece showcases Omega's craftsmanship and attention to detail. The Speedmaster is a versatile accessory that adapts effortlessly to any style or occasion, making it a worthy investment for anyone who appreciates the finer things in life.
Key Features
- Manual-winding chronograph movement
- Master Chronometer Certified
- 50-meter water resistance
- Co-Axial escapement and silicon balance spring
- Open case back revealing intricate movement
- Robust stainless steel construction with sapphire crystal
Specifications
- Brand
- Omega
- Family
- Speedmaster
- Model
- Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Sapphire / Calf
- Reference
- 310.32.42.50.01.002
- Movement
- 3861
- Movement Features
-
- Small Seconds, Hours, Minutes
- Chronograph
- Chronometer
- Case
- Stainless Steel 42mm
- Dial Color
- Black
- Crystal
- Sapphire
- Water Resistance
- 50
Current Listings
![[WTS] Omega Speedmaster Date 3511.50](https://preview.redd.it/htju0vwevxzg1.jpg?width=640&crop=smart&auto=webp&s=3759a62af27a8e9cce27492da4193a969d22a359)
Omega Speedmaster Date 3511.50
This Omega Speedmaster date is a rare reverse panda dial model only sold in Japan.
- Condition: great condition
- Location: southwest FL
- Payment Methods Accepted: crypto with small fee, local meetups
- Payment Methods Not Accepted: PayPal
![[WTS] “May the 4th Be With You” 2026 Card Omega Speedmaster Sapphire Complete Set *$7,200 + label*](https://preview.redd.it/x8icrclmlxzg1.jpg?width=640&crop=smart&auto=webp&s=657f83a806ba23d0aaabff15f208e06a5ceed220)
“May the 4th Be With You” 2026 Card Omega Speedmaster Sapphire Complete Set *$7,200 + label*
A brand new Omega Speedmaster Sapphire Sandwich Complete Set with all cards included, travel case, and literature.
- Condition: Brand new, unworn and unsized
- Year: 5/4/2026
- Contents: All cards included, travel case and Speedmaster literature
- Payment methods: Zelle or Wire preferred, Credit Cards accepted +3.5%
![[WTS] 2026 Omega Speedmaster White Full Set](https://preview.redd.it/52z1wg2v8xzg1.jpeg?auto=webp&s=ed1215e4cd73a06b27cb0bea2cbad7a84db2f4d7)
2026 Omega Speedmaster White Full Set
No description provided in the listing
![[WTS][US] Omega Speedmaster Calibre 321 - Ed White - Black Dial - 39.7mm - 311.30.40.30.01.001 - Full Set](https://preview.redd.it/k8nhgcz2mwzg1.jpg?width=640&crop=smart&auto=webp&s=79c56515e65c8c224f4fb5fd956029bf2ba4cde8)
[US] Omega Speedmaster Calibre 321 - Ed White - Black Dial - 39.7mm - 311.30.40.30.01.001 - Full Set
Up for sale is an Omega Speedmaster Calibre 321 - Ed White - Black Dial - 39.7mm, functions perfectly mechanically.
- Condition: pristine condition with minor hairlines on clasp, case, and bracelet
- Diameter: 39.7mm
![[WTS] Omega Speedmaster Hesilate Ref. 310.32.42.50.01.001 Full Set + Original Receipt](https://preview.redd.it/638in08elwzg1.jpg?width=640&crop=smart&auto=webp&s=df96571ac990f1b9da976dc1dee0711629aa9b66)
Omega Speedmaster Hesilate Ref. 310.32.42.50.01.001 Full Set + Original Receipt
This Omega Speedmaster Moonwatch Professional features a Co-Axial Master Chronometer Caliber 3861 and is in excellent overall condition, with the notable exception of a very minor mark on the Hesalite crystal.
- Condition: Excellent overall condition with minor mark on Hesalite crystal and light signs of normal wear on case
- Movement: Co-Axial Master Chronometer Caliber 3861
- Crystal type: Hesalite
- Caseback type: Aftermarket exhibition caseback (original solid also included)
![[WTS][US] Omega Speedmaster Moonwatch Professional - White Dial - 310.30.42.50.04.001 - Full Set](https://preview.redd.it/tjzoj633lwzg1.jpg?width=640&crop=smart&auto=webp&s=2da259a57fd5686cab7043ac0dd49cd3d252b322)
[US] Omega Speedmaster Moonwatch Professional - White Dial - 310.30.42.50.04.001 - Full Set
Up for sale is an Omega Speedmaster Moonwatch Professional - White Dial - Full Set Watch is in pristine condition and functions perfectly mechanically, without issue.
- Condition: pristine condition with minor hairlines on clasp, case, and bracelet
- Water Resistance: 30m
- Box Contents: inner box, outer box, removable travel case, historical booklet, user manual, microfiber cloth, master chronometer card, warranty card
![[WTS] Omega Speedmaster Professional (310.30.42.50.01.002)](https://preview.redd.it/541uwhfjcwzg1.jpg?width=640&crop=smart&auto=webp&s=1a90bb15887bc220519a97668663597985af53ad)
Omega Speedmaster Professional (310.30.42.50.01.002)
This Omega Speedmaster Professional features a black dial on a stainless steel bracelet, with a sapphire crystal and manual caliber 3861 movement.
- Condition: Excellent
- Case size: 42mm diameter
- Case material: Stainless Steel
- Bracelet material: Stainless Steel
![[WTS] Omega Speedmaster Snoopy New 4/2026, $15.2k!!](https://preview.redd.it/3uhak4g8fuzg1.jpg?width=640&crop=smart&auto=webp&s=a57f73e310e6d2b4e9ef7ac9be6bdc919c18db9e)
Omega Speedmaster Snoopy New 4/2026, $15.2k!!
This Omega Speedmaster is a limited edition 'Silver Snoopy Award' 50th Anniversary model, featuring a silver dial with blue accents and a Snoopy medallion.
- Condition: Brand New In Box (BNIB)
- Case size: 42mm
- Movement type: Manual Wind
- Depth rating: 50m
![[WTS] 1971 Omega Speedmaster Ref.145022-69 “ Straight Writing” $10,500 AUD / $7,800USD](https://preview.redd.it/p1wqu6oruszg1.jpg?width=640&crop=smart&auto=webp&s=b6c4279887eb83cb248ab034bc28d066e488717d)
1971 Omega Speedmaster Ref.145022-69 “ Straight Writing” $10,500 AUD / $7,800USD
A clean and honest early 1970s Omega Speedmaster Professional. Fully serviced by LWC in Perth in February 2026.
- Condition: Honest vintage condition, running well
- Case Material: Stainless steel
- Case Size: 42mm diameter
- Movement Type: Manual wind chronograph (cal. 861)