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 Professional - Sapphire Sandwhich ( White Dial ) 310.30.42.50.04.001 $7,700 plus label](https://preview.redd.it/bdkqc6rz5ddg1.jpg?width=640&crop=smart&auto=webp&s=5e5ec6c486ebcd433ceb1782da8fef3721842897)
OMEGA Speedmaster Professional - Sapphire Sandwhich ( White Dial ) 310.30.42.50.04.001 $7,700 plus label
Speedmaster Professional with a White Dial and Sapphire Sandwhich case.
![[WTS] Omega Speedmaster professional Oem rubber strap & deployant $525 shipped](https://preview.redd.it/lwxxw89g0ddg1.jpg?width=640&crop=smart&auto=webp&s=fc6f258c087fb29bc2e77bc157fa402668bafcb0)
Omega Speedmaster professional Oem rubber strap & deployant $525 shipped
This Omega Speedmaster professional watch is being sold to make room for the sale of a rubber strap and deployant, which are also included.
- Condition: Good
- Strap type: Rubber strap
- Deployment buckle type: Deployant
![[WTS] 2023 Omega Speedmaster Moonphase 44.25mm 304.33.44.52.03.001 Blue Dial - Box and Papers](https://preview.redd.it/jdx48e1i2cdg1.jpg?width=640&crop=smart&auto=webp&s=f292625011909f50c1a37da7f336915af2b40224)
2023 Omega Speedmaster Moonphase 44.25mm 304.33.44.52.03.001 Blue Dial - Box and Papers
This 2023 Omega Speedmaster Moonphase features a 44.25mm blue dial and is in good condition with light signs of wear on the case and clasp.
- Condition: Good preowned condition
- Case Size: 44.25mm diameter
- Warranty: 5 year warranty remaining
![[WTS] 1989 Omega Speedmaster Automatic 175.0032. Vintage Speedy | Runs well](https://preview.redd.it/quzgr99twbdg1.jpg?width=640&crop=smart&auto=webp&s=1bdfc17ee22e7779165bc54d7ab0536079c56c09)
1989 Omega Speedmaster Automatic 175.0032. Vintage Speedy | Runs well
A vintage Omega Speedmaster Automatic from 1989, featuring incredible tritium lume patina and a few variations in caseback and bracelet.
- Condition: Excellent, with honest but light wear
- Caseback variations: multiple caseback designs available for this reference
- Bracelet variations: multiple bracelet options available for this reference
![[WTS] Omega Speedmaster First Omega In Space FOIS 40mm 310.30.40.50.06.001 | 8/2025 Full Set](https://preview.redd.it/p19t8pxoh8dg1.jpg?width=640&crop=smart&auto=webp&s=d688a2860e237dfc5beb7dea719cabd7e82cc14a)
Omega Speedmaster First Omega In Space FOIS 40mm 310.30.40.50.06.001 | 8/2025 Full Set
This is a 40mm Omega Speedmaster First Omega In Space (FOIS) with a Master Chronometer certification.
- Condition: Pre-Owned, Great Condition
- Bezel condition: Clean
- Crystal condition: Clean
- Bracelet length: 23 Links
![[WTS] Omega Speedmaster 38 324.30.38.50.01.001 | 2024 Full Set w/ Extra OEM Strap](https://preview.redd.it/gp3dq2nxg8dg1.jpg?width=640&crop=smart&auto=webp&s=6af88ac5bb808eae923255af8397108107f474ad)
Omega Speedmaster 38 324.30.38.50.01.001 | 2024 Full Set w/ Extra OEM Strap
A 2024 Omega Speedmaster 38 with a slight scratching on the anti-reflective coating, available for sale in excellent condition with extra OEM strap and various other accessories.
- Condition: Pre-Owned | Slight scratching on AR Coating
- Water resistance: 350 AMP
![[WTS] 2024 Omega Speedmaster “First Omega in Space” 310.30.40.50.06.001 – Full Set + Extra Uncle Bracelet – $6,950 Shipped](https://preview.redd.it/sfqt8qt2r7dg1.jpg?width=640&crop=smart&auto=webp&s=38f8d54fe7f23844eeabb381af9edffeeb90386b)
2024 Omega Speedmaster “First Omega in Space” 310.30.40.50.06.001 – Full Set + Extra Uncle Bracelet – $6,950 Shipped
A modern reissue of the Speedmaster worn by Wally Schirra during the Sigma 7 mission, featuring a slimmer 39.7mm case and vintage-inspired aesthetic.
- Condition: Excellent
- Case size: 39.7mm
- Movement: Omega Caliber 3861, Manual-wind chronograph
- Crystal: Sapphire
![[WTS] 20mm Omega Integrated Speedmaster Black Rubber Strap & Omega Clasp - (Backordered) 2. 20mm Omega SMP 300 Black Rubber Strap & Omega OEM Clasp](https://preview.redd.it/qhv5hyrx27dg1.jpg?width=640&crop=smart&auto=webp&s=6906808af017803841e491a8d82eecabb76e5f5d)
20mm Omega Integrated Speedmaster Black Rubber Strap & Omega Clasp - (Backordered) 2. 20mm Omega SMP 300 Black Rubber Strap & Omega OEM Clasp
The seller is offering two Omega watch straps for sale: a black rubber strap with integrated Speedmaster design and an SMP 300 Black Rubber Strap. Both straps are OEM and come with their respective clasps.
- Strap Type1: Integrated Speedmaster Rubber Strap
- Strap Type2: SMP 300 Black Rubber Strap
- Clasp Type1: Omega OEM Stainless Steel Deployant Clasp
![[WTS] Omega Speedmaster Professional Moonwatch Tropical Brown Dial Heavy Patina Blue Insert 1969 (Box/Serviced) 🍫](https://preview.redd.it/i7kl1juty6dg1.jpg?width=640&crop=smart&auto=webp&s=1291e3cece3efd8651db15569222022fb0349ca6)
Omega Speedmaster Professional Moonwatch Tropical Brown Dial Heavy Patina Blue Insert 1969 (Box/Serviced) 🍫
The Omega Speedmaster Moonwatch 145.022-69 features a super tropical brown dial with heavy yellow patina, a deep blue bezel, and tritium that glows green under UV light.
- Condition: Very rare and fully original, beautiful condition
- Case size: 42mm
- Year of production: 1969
- Movement serviced: November 2025