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 Dark Side of the Moon 44.25mm 310.92.44.51.01.002 ( new / 2025 / box and papers )](https://preview.redd.it/7knhhf02aczg1.jpg?width=640&crop=smart&auto=webp&s=4f8c8e0954c6be6277b3dc9eee5008ec0c6dfe7f)
Omega Speedmaster Dark Side of the Moon 44.25mm 310.92.44.51.01.002 ( new / 2025 / box and papers )
The Omega Speedmaster Dark Side of the Moon is a high-end watch with a black ceramic case and Co-Axial Calibre 9900 movement.
- Condition: Brand new
- Case material: Black ceramic
- Diameter: 44.25mm
![[WTS] Omega Speedmaster Apollo 17](https://preview.redd.it/o8ffnsds9czg1.jpg?width=640&crop=smart&auto=webp&s=dc9e0644c3639e9261d5c191de8faba029915865)
Omega Speedmaster Apollo 17
This rare Omega Speedmaster Apollo 17 is one of only 1972 pieces ever made, featuring a good condition and no major marks on the bracelet or watch.
- Condition: Good
- Production run size: 1972 pieces
- Bracelet condition: No major marks
- Wrist size requirement: 7.3 inches
![[WTS] Omega Speedmaster Snoopy New 5/2026, $15.5k](https://preview.redd.it/lpadrfctkbzg1.jpg?width=640&crop=smart&auto=webp&s=6eebfaa337b8aab4cf8bab3413aa01b73753866c)
Omega Speedmaster Snoopy New 5/2026, $15.5k
This is a listing for an Omega Speedmaster Snoopy, a new watch with a reference number of 310.32.42.50.02.001. The watch comes in its original box and has a dated warranty.
- Condition: New
- Shipping Cost: $100 Shipping for USA
- Payment Methods: Wire or Credit Card (+4.9% & 4 days clearance)
- Warranty Duration: 2 years (2026-2028)
![[WTS] [US] Omega Speedmaster Moonwatch Professional Moonshine Gold Black Dial 42mm 310.60.42.50.01.002 - Complete Set 2026 - $35,000](https://preview.redd.it/s3gow9lqhbzg1.jpg?width=640&crop=smart&auto=webp&s=684ca3cd3694bf7898811dc4df5b6253d6bf5c61)
![[WTS][US] Omega Speedmaster First Omega in Space - FOiS - 310.30.40.50.06.001 - Full Set](https://preview.redd.it/ew8yclahxazg1.jpg?width=640&crop=smart&auto=webp&s=3eb8a0c0e91c72808351c3dccf3bfec4eed76352)
[US] Omega Speedmaster First Omega in Space - FOiS - 310.30.40.50.06.001 - Full Set
This Omega Speedmaster First Omega in Space is a mechanical watch that comes fully linked with its original accessories.
- Condition: Fantastic condition with few, if any hairlines on case, clasp, and bracelet.
- Case condition: Few hairlines
- Comes with: Full set of accessories
![[WTS] Omega Speedmaster Reduced 3510.50](https://preview.redd.it/wpw82mrf18zg1.jpg?width=640&crop=smart&auto=webp&s=34c44df1145cd278efa6a0cd6ab81c4584eb4a2a)
Omega Speedmaster Reduced 3510.50
This Omega Speedmaster Reduced is a 39mm watch with a 7-inch bracelet.
- Case size: 39mm
![[WTS] Omega Speedmaster Reduced 3510.50 - $2500 SHIPPED](https://preview.redd.it/tu5i4r9ec7zg1.jpeg?auto=webp&s=704f510411631af4fb81d73d77d4f698e81ec752)
Omega Speedmaster Reduced 3510.50 - $2500 SHIPPED
This Omega Speedmaster Reduced features a 39mm case size, automatic 3220 movement, and is very wearable on most wrists.
- Condition: Good overall condition with light scratches from regular use
- Case size: 39mm
- Movement: 3220 automatic
- Bracelet type: Uncle's flat link
![[WTS] Omega Speedmaster Chrono Blue Dial 43mm - 329.30.43.51.03.001 Full Set - Like New Condition - Houston, TX 🔥💰6,297💰🔥 + 🏷️](https://preview.redd.it/rgljxhlw67zg1.jpg?width=640&crop=smart&auto=webp&s=6dc971e851dde4670792b0af5003cf8ef48e697f)
Omega Speedmaster Chrono Blue Dial 43mm - 329.30.43.51.03.001 Full Set - Like New Condition - Houston, TX 🔥💰6,297💰🔥 + 🏷️
The Omega Speedmaster Chronoscope is a stylish and functional wristwatch designed for unisex adults, featuring a blue dial with spiral pattern and Arabic numerals, housed in a stainless steel case.
- Condition: Like new condition, both mechanically and cosmetically.
- Case size: 43mm
- Movement type: Mechanical manual
- Water resistance: 50m
![[WTS] Omega Speedmaster OEM Rubber Strap & Deployant Clasp](https://preview.redd.it/uhlq2l2m66zg1.jpg?width=640&crop=smart&auto=webp&s=ffa46be41754748ce05f5d8a125d36da23ff676b)
Omega Speedmaster OEM Rubber Strap & Deployant Clasp
Up for sale is an Omega Speedmaster's OEM rubber strap and its clasp, in excellent condition. The deployant clasp was not used due to personal preference.
- Material: rubber
- Clasp type: deployant