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 Moonwatch Professional 310.32.42.50.01.002 - Full Set – 2/3/24 - Barely Worn (US ONLY)](https://external-preview.redd.it/1WN8HTxAvuLsprhwyt5Qvxq2fiyJdVdHFjrj9qFzC2I.jpg?auto=webp&s=120dee063c8cb5d078c6c66e1455c0a06aff7263)
Omega Speedmaster Moonwatch Professional 310.32.42.50.01.002 - Full Set – 2/3/24 - Barely Worn (US ONLY)
A black dial Omega Speedmaster Moonwatch Professional, purchased new on 2/3/24, with a 42mm case and black leather strap.
- Condition: Barely worn
- Case size: 42mm
- Bezel condition: Almost microscopic mark at :59 on the dial

Pre-Owned Omega Speedmaster Pilot 332.10.41.51.01.002
This pre-owned Omega Speedmaster Pilot is a stainless steel watch with a black dial and automatic movement. It has a 41mm case size and water resistance of up to 100 meters.
- Condition: 96% condition with faint marks on the sides and back of the case, 93% condition for the bracelet, and 97% condition for an OEM strap
- Material: Stainless Steel
- Dial color: Black
- Case size: 41mm diameter
![[WTS] Omega Speedmaster Hesalite 3861 with quick adjust bracelet](https://external-preview.redd.it/Dm4Qol7OuXJwyI2YnfqLXXDc2Sn8F66McyAdd3bvEeo.jpeg?auto=webp&s=d7863c961700a846914bdf9dd3f206d1ccc7493b)
Omega Speedmaster Hesalite 3861 with quick adjust bracelet
This Omega Speedmaster Hesalite 3861 is in excellent condition, featuring a quick adjust bracelet and minimal wear. It comes with the full kit, including warranty cards, spare links, paperwork, and an original sales receipt.
- Condition: Excellent
- Crystal type: Hesalite
- Bracelet type: Quick adjust
- Movement accuracy: +0 to +5 seconds per day
Omega Speedmaster. Tokyo Edition. Rare Bird. Omega Serviced 2024. Clean.
This Omega Speedmaster Tokyo Edition is a rare and highly sought-after timepiece, featuring a clean condition and recent service from Omega in 2024.
- Condition: Clean
- Case size: 42mm diameter
![[WTS] Ceramic Dot-Over-Ninety Tachymètre Bezel For The Omega Speedmaster 3861](https://preview.redd.it/wg62ilzsoq7f1.jpeg?auto=webp&s=0e53378b3e021c81ec1cc4c83f2d3ecbc97eb28c)
Ceramic Dot-Over-Ninety Tachymètre Bezel For The Omega Speedmaster 3861
Additional details include a timestamp to the i.imgur link and a Buy it now for $150 shipped.
- Newness: bought and never installed
![[WTS] Omega Speedmaster. Moonwatch $2250.00](https://external-preview.redd.it/3vG8GwrU93BdmPCDgdPOTrVkZC2cp0c69XTWJuuNK3I.jpeg?auto=webp&s=d2539b444b3cbd771032afd93ffa9dea9920d470)
Omega Speedmaster. Moonwatch $2250.00
A Omega Speedmaster Moonwatch with its original box and manual is being sold.
- Box: yes, included
![[WTS] Omega Speedmaster. Tokyo Edition. Rare Bird. Omega Serviced 2024. Clean.](https://preview.redd.it/4xyo7bl9kp7f1.jpeg?auto=webp&s=a7a2408857b2e2d22c7047601c361bcb4da84988)
Omega Speedmaster. Tokyo Edition. Rare Bird. Omega Serviced 2024. Clean.
This Omega Speedmaster Tokyo Edition features a rare design and has been serviced by Omega in 2024. It comes with the original service box, links, and service papers.
- Case Dimensions: 42mm diameter
- Serviced By: Omega
- Service Year: 2024
Omega Speedmaster Reduced Mop Dial Automatic 3534.70.00
A 38mm Omega Speedmaster Reduced Mop Dial Automatic, a chronograph watch with a mechanical automatic movement and stainless steel case.
- Condition: 90%
- Size: 38mm diameter
- Case material: Stainless Steel
- Movement type: Mechanical Automatic

Pre-Owned Omega Speedmaster Pilot 332.10.41.51.01.002
A pre-owned Omega Speedmaster Pilot with a black dial, automatic movement, 41mm stainless steel case, and water resistance to 100 meters.
- Condition: Pre-owned, with faint marks on the sides and back of the case (96%), slight marks on the links and clasp (93%), minor wear on an OEM strap (97%)
- Case size: 41mm diameter
- Material: Stainless Steel
- Dial color: Black