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 3539.50 Reduced Speedmaster Sapphire Automatic Cards + Box $3,500](https://preview.redd.it/5qf3vfy2a90h1.jpg?width=640&crop=smart&auto=webp&s=0fc7733d8e447b4f573d201a9ef53f349fdcf590)
Omega Speedmaster 3539.50 Reduced Speedmaster Sapphire Automatic Cards + Box $3,500
This Omega Speedmaster Reduced Sapphire is an undated model with a reference number of 3539.50. It has been recently serviced and features good timegrapher numbers.
- Condition: Excellent, recently polished
- Bracelet size fits wrists: 19.5cm
- Service history: Recently serviced by watchmaker
![[WTS] Omega Speedmaster Triple Date 3523.80 – Blue Dial – Automatic Triple Calendar Chronograph ( Serviced ) Price 2200$](https://preview.redd.it/k80fpx3w490h1.jpg?width=640&crop=smart&auto=webp&s=52819414df7a1a2fd22944ef4e9497beb0f5102b)
Omega Speedmaster Triple Date 3523.80 – Blue Dial – Automatic Triple Calendar Chronograph ( Serviced ) Price 2200$
The Omega Speedmaster Triple Date features a metallic blue dial, a three-day calendar layout, and a moon phase display, combining sporty style with elegant design.
- Condition: Excellent vintage condition with minor signs of wear befitting its age
- Case size: 39mm diameter
- Movement: Omega Cal. 1151 Automatic Chronograph
- Functions: Chronograph, Date, Month, Moon Phase
![[WTS] 2026 New White Omega Speedmaster](https://preview.redd.it/9m5wdph6v60h1.jpeg?auto=webp&s=1fc87b9b029e78a39aaa0bfb776707a44906a272)
2026 New White Omega Speedmaster
- Photo link: https://imgur.com/a/wZkrrX0
![[WTS] Omega Speedmaster Mark II. 327.10.43.50.01.001.](https://preview.redd.it/av30a8mta60h1.jpeg?auto=webp&s=55b1d93a95b56004c5435265152c90bb735db629)
Omega Speedmaster Mark II. 327.10.43.50.01.001.
A Omega Speedmaster Mark II in very good condition, suitable for large wrists.
- Condition: Very good condition
- Size: 40mm diameter
- Wrist size suitability: Large wrist
![[WTS] Omega Speedmaster. 39mm. Special Dial.](https://preview.redd.it/4wfj4wev860h1.jpeg?auto=webp&s=5e779b6070bc9d3595692ea6dea65153dd13f402)
Omega Speedmaster. 39mm. Special Dial.
A 39mm Omega Speedmaster with a special dial is being sold. The watch features an automatic movement and has been listed for sale.
- Diameter: 39mm
- Movement type: automatic
![[WTS] Omega Speedmaster Broadarrow. Strong Lume.](https://preview.redd.it/a4ux0qtc060h1.jpeg?auto=webp&s=bb0d894a47228ea08672c41aa34fbc9d470ed511)
Omega Speedmaster Broadarrow. Strong Lume.
This Omega Speedmaster Broadarrow features strong lume and runs well.
- Condition: Runs well
- Shipping: Fedex with insurance
- Location: NJ USA
- References: 800+ references
![[WTS] Omega Speedmaster Tokyo Gold Green 522.20.42.30.06.001](https://preview.redd.it/nv04z1h8i50h1.jpg?width=640&crop=smart&auto=webp&s=6200378b02b4bd014c6052f766a0dabff210574a)
Omega Speedmaster Tokyo Gold Green 522.20.42.30.06.001
Omega Speedmaster Tokyo Gold Green in mint condition, complete with original boxes and papers.
- Condition: Mint condition with minor wear on the bracelet
- Bracelet state: has all stickers
- Extra strap included: yes
- Strap type: crocodile leather
![[WTS] Omega Speedmaster Reduced Sapphire Crystal 3539.50 39mm $2,900](https://preview.redd.it/jn76cgweh50h1.jpg?width=640&crop=smart&auto=webp&s=33756c14e0e39717f352fc58d2401124ceb291f8)
Omega Speedmaster Reduced Sapphire Crystal 3539.50 39mm $2,900
This Omega Speedmaster Reduced is a 39mm watch recently serviced by a professional watchmaker and features a sapphire crystal.
- Condition: Used, with minor cosmetic damage (nicks around the bezel)
- Case Size: 39mm
- Bracelet Length: 18.5cm
![[WTS] 2005 Omega Speedmaster Professional "Sapphire Sandwich" Ref. 3573.50 Watch + Card and Tag - $4,800](https://preview.redd.it/szl912qzz40h1.jpg?width=640&crop=smart&auto=webp&s=8ec5d61fa79305ba3c38ad9c52133584aee2b52c)
2005 Omega Speedmaster Professional "Sapphire Sandwich" Ref. 3573.50 Watch + Card and Tag - $4,800
This Omega Speedmaster Professional Moonwatch is a stainless steel watch with a sapphire crystal and an Omega 1863 movement, featuring a 42mm diameter case.
- Condition: Good
- Case material: Stainless steel
- Crystal material: Sapphire
- Movement: Omega 1863