Omega Speedmaster Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Sapphire / Bracelet
Reference 310.30.42.50.01.002
About this watch
The Omega Speedmaster Professional Moonwatch, reference 310.30.42.50.01.002, is a masterpiece of horology that embodies the perfect blend of history, function, and style. This iconic watch features a classic round case with a diameter of 42 mm and a height of 13.18 mm, encasing a stunning matte black dial that provides a perfect contrast to the stainless steel exterior. The sapphire crystal glass offers unparalleled scratch resistance and clarity, allowing wearers to enjoy this watch in everyday situations without worrying about damaging the face. At its core is the Omega caliber 3861 movement, an updated version of the previous caliber 861 and 1861, featuring a co-axial escapement and silicon balance spring that enhances accuracy and longevity. This Master Chronometer certified by METAS ensures reliable performance under various conditions, with a power reserve of 50 hours and a frequency of 21,600 vibrations per hour. The Omega Speedmaster isn't just a timekeeper; it's a fully functional chronograph with small seconds, hours, and minutes hands that can easily track elapsed time in any setting. This watch is perfect for daily wear, with a water resistance of 50 meters making it suitable for splashes and brief immersion in water. The stainless steel bracelet is both stylish and comfortable, designed for wearability and featuring solid yet lightweight links that adjust effortlessly to find the perfect fit. Whether you're dressed formally or casually, this watch complements any look and is sure to spark conversations with its iconic design and historical significance.
Key Features
- 42mm stainless steel case
- Sapphire crystal glass for scratch resistance
- Master Chronometer certified Omega caliber 3861 movement
- Chronograph function with small seconds, hours, and minutes hands
- Water resistance of 50 meters
- Stainless steel bracelet with adjustable links
- Iconic tachymetric scale on the bezel
Specifications
- Brand
- Omega
- Family
- Speedmaster
- Model
- Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Sapphire / Bracelet
- Reference
- 310.30.42.50.01.002
- 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 OEM Integrated Speedmaster Rubber Straps - One with OEM Clasp - One Without Clasp (Backordered thru Omega)](https://preview.redd.it/fxxaq044w6xg1.jpg?width=640&crop=smart&auto=webp&s=aa1accc3e36890b20a37d3656db713d36ae5a125)
Omega OEM Integrated Speedmaster Rubber Straps - One with OEM Clasp - One Without Clasp (Backordered thru Omega)
Additional details for Omega Speedmaster Professional rubber straps with curved ends and stainless steel deployant clasp. Designed to fit 20mm lugs.
- Condition: Very Good
- Material: rubber
- Clasp Type: stainless steel deployant clasp
- Lugs Size: 20mm
![[WTS] 2026 LNIB OMEGA Speedmaster Moonwatch Professional "Reverse Panda" 310.30.42.50.01.004 - Full Set](https://preview.redd.it/tq340bu5p6xg1.jpg?width=640&crop=smart&auto=webp&s=badbb717269a994c510cb666fd63a40ced105216)
2026 LNIB OMEGA Speedmaster Moonwatch Professional "Reverse Panda" 310.30.42.50.01.004 - Full Set
The Omega Speedmaster Moonwatch Professional 'Reverse Panda' is a new addition to the permanent Moonwatch collection, featuring a glossy polished black lacquered step dial with white varnished and lacquered sub-dials.
- Condition: Pristine pre-owned condition, virtually like new
- Case size: 42mm diameter
- Movement: Manual-Winding Co-Axial Master Chronometer Calibre 3861 (METAS certified)
- Power reserve: ~50 hours
![[WTS] Omega Speedmaster Day Date 3523.80](https://preview.redd.it/bcqryecka6xg1.jpg?width=640&crop=smart&auto=webp&s=3089ffabc225adabbe7aa2434e49e5a747c8369c)
Omega Speedmaster Day Date 3523.80
This Omega Speedmaster Day Date features a beautiful blue dial and is in excellent condition with minimal signs of wear.
- Condition: Excellent
- Payment Methods Accepted: pretty much every payment method, including crypto
- Meetup Location: southwest FL
- Available Trades: Tudor, Cartier, Rolex, Omega, Breitling, AP
![[WTS] Omega Speedmaster Racing 326.30.40.50.03.001](https://preview.redd.it/j259226j96xg1.jpg?width=640&crop=smart&auto=webp&s=6444ced954001ce2d03290d1142573e20020737d)
Omega Speedmaster Racing 326.30.40.50.03.001
For sale is an Omega Speedmaster Racing, in great condition with some light wear around the watch.
- Condition: great condition with some light wear
- Payment Methods Accepted: pretty much every payment method including crypto
- Local Meet Available: yes
![[WTS] Omega Speedmaster Date 38.5mm 3513.54](https://preview.redd.it/o6sgrlko86xg1.jpg?width=640&crop=smart&auto=webp&s=9e3529ac8402405f5bb64f009b62462320b2a6d1)
Omega Speedmaster Date 38.5mm 3513.54
For sale is an Omega Speedmaster Date 38.5mm reference number 3513.54, in good condition, from 1998.
- Condition: good with some wear and small marks
- Year of production: 1998
- Case size: 38.5mm
![[WTS] Omega Speedmaster Reduced 3510.50](https://preview.redd.it/lnykkhpx56xg1.jpg?width=640&crop=smart&auto=webp&s=aa5e42a65deb97ee6a9eef0da9505d91a9065bed)
Omega Speedmaster Reduced 3510.50
For sale is an Omega Speedmaster Reduced 3510.50 in great condition, with some minor wear and fading on the bezel.
- Condition: Great condition with some light wear and fading on the bezel
- Payment Methods Accepted: Various payment methods including crypto with a small fee, excluding PayPal
- Local Pickup Available: Yes, located in southwest FL
- Trading Possible: Yes, only with brands Tudor, Cartier, Rolex, Omega, Breitling, AP
![[WTS] 2026 Omega Speedmaster Professional White Dial 310.32.42.50.04.002 Full Set $7,300](https://preview.redd.it/krybhbjl36xg1.jpg?width=640&crop=smart&auto=webp&s=b0e3fc157b8e34264357a60661bf42b3116f2829)
2026 Omega Speedmaster Professional White Dial 310.32.42.50.04.002 Full Set $7,300
A modern Omega Speedmaster Professional with a lacquered white dial, powered by the Co-Axial Master Chronometer Calibre 3861, featuring a clean and high-contrast look while maintaining the iconic Speedmaster design.
- Condition: Like new
- Case size: 42mm diameter
- Case material: Stainless steel
- Movement: Manual wind (Omega Calibre 3861 Master Chronometer)
![[WTS] Omega Speedmaster ‘57 reference 331.12.42.51.01.001 - Complete set with hang tag, undated](https://preview.redd.it/f32y8cpys5xg1.jpg?width=640&crop=smart&auto=webp&s=9a8bab4cc3c7cf5959ef3b7750de2911e75b6fe6)
Omega Speedmaster ‘57 reference 331.12.42.51.01.001 - Complete set with hang tag, undated
For sale is an Omega Speedmaster '57 reference 331.12.42.51.01.001, complete set with hang tag and undated.
- Condition: undated
- Diameter: 42mm
![[WTS] 2025 Omega Speedmaster Racing 329.32.44.51.06.001 44MM Full Set](https://preview.redd.it/jqduxu50d5xg1.jpg?width=640&crop=smart&auto=webp&s=8deae4882e10508618038273b03761ff17bf2af0)
2025 Omega Speedmaster Racing 329.32.44.51.06.001 44MM Full Set
This is a 2025 Omega Speedmaster Racing Chronograph with a silver/grey dial and a 44mm case size. It comes as a full set with box, papers, and warranty coverage through January 2030.
- Condition: Excellent
- Case Size: 44mm diameter
- Box And Papers: true