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 SPEEDMASTER SAPPHIRE SANDWICH BRAND NEW 12/2025 COMPLETE🔥](https://preview.redd.it/7iuhd495bm9g1.jpg?width=640&crop=smart&auto=webp&s=db1061a27c5b2c569897511bcd0b2574e55acfab)
🔥OMEGA SPEEDMASTER SAPPHIRE SANDWICH BRAND NEW 12/2025 COMPLETE🔥
This listing is for a brand new OMEGA Speedmaster Sapphire Sandwich, dated December 2025.
- Condition: BRAND NEW/UNWORN
- Case size: 42mm diameter
- Material: Stainless Steel
![[WTS] Omega Speedmaster Moonwatch Professional Sapphire 310.30.42.50.01.002 – Full Set – $6,400 Shipped](https://preview.redd.it/q79yifplkl9g1.jpg?width=640&crop=smart&auto=webp&s=65d7ed6a204cd1bf9b737d52cc40d6f1c82d93e1)
Omega Speedmaster Moonwatch Professional Sapphire 310.30.42.50.01.002 – Full Set – $6,400 Shipped
A 2022 Omega Speedmaster Moonwatch Professional Sapphire with a sapphire crystal and display caseback, featuring the classic 42mm Speedmaster design with Omega's Master Chronometer caliber.
- Condition: Great
- Case size: 42mm
- Movement type: Manual-wind chronograph
- Caliber: Omega Caliber 3861, Master Chronometer
![[WTS] Omega Speedmaster Moonwatch Professional Sapphire Sandwich 310.30.42.50.01.002](https://preview.redd.it/u2yvamthx59g1.jpeg?auto=webp&s=1b0c90ca5a3705157504be6d2a56b6778d038d77)
Omega Speedmaster Moonwatch Professional Sapphire Sandwich 310.30.42.50.01.002
This is the Omega Speedmaster Moonwatch Professional Sapphire Sandwich, a luxury watch featuring high-end materials and craftsmanship.
- Condition: Mint
- Box and papers: complete set, including warranty card
- Links: all links included
![[WTS] Omega Speedmaster Moonwatch Professional Sapphire Sandwich 310.30.42.50.01.002](https://preview.redd.it/uo3h6wp8719g1.jpg?width=640&crop=smart&auto=webp&s=b45d31150539f1b1602de9eedd6623a57e480400)
Omega Speedmaster Moonwatch Professional Sapphire Sandwich 310.30.42.50.01.002
This is a mint Omega Speedmaster Moonwatch Professional Sapphire Sandwich with additional accessories including box, warranty cards, outer box, and links.
- Condition: mint
- Box: yes
- Warranty card: 3 cards
- Outer box: yes
![[WTS] Omega Speedmaster Moonwatch Professional Sapphire 310.30.42.50.01.002 – Full Set – $6,400 Shipped](https://preview.redd.it/aisyh5prlu8g1.jpg?width=640&crop=smart&auto=webp&s=f5b9dcd70345942d139b357fdeac6b74edaa6c19)
Omega Speedmaster Moonwatch Professional Sapphire 310.30.42.50.01.002 – Full Set – $6,400 Shipped
A 2022 Omega Speedmaster Moonwatch Professional Sapphire, featuring a sapphire crystal and display caseback, with a manual-wind chronograph movement.
- Condition: Great
- Case size: 42mm diameter
- Movement: Manual-wind chronograph (Omega Caliber 3861)
- Crystal: Sapphire
![[WTS] 2021 Omega Speedmaster Professional Sapphire Sandwich](https://preview.redd.it/76rxgo8hwo7g1.jpg?width=640&crop=smart&auto=webp&s=2c40f0a63d62b3f28bd00e8c645bfaabd8b9fe78)
2021 Omega Speedmaster Professional Sapphire Sandwich
A 2021 Omega Speedmaster Professional 'Sapphire Sandwich' in excellent condition, featuring a 42mm steel case with a sapphire back and manual winding movement.
- Condition: Pre-owned, cosmetic condition: 8/10
- Movement: OMG Calibre 3861 (manual winding)
- Power reserve: approximately 50 hours
- Case material: Steel front, sapphire back
![[WTS] Omega Speedmaster Professional 42mm “Sapphire Sandwich” 310.30.42.50.01.002 - 11/2025 Complete Set](https://preview.redd.it/eyse9yzel27g1.jpg?width=640&crop=smart&auto=webp&s=6b80af957bcc36b8db894a73b7a3c68bedf8303f)
Omega Speedmaster Professional 42mm “Sapphire Sandwich” 310.30.42.50.01.002 - 11/2025 Complete Set
This Omega Speedmaster Professional 42mm is a 'Sapphire Sandwich' model with a complete set, including a serial tag and master chronometer certification.
- Condition: Like New
- Case Size: 42mm
2022 Omega Speedmaster Moonwatch Sapphire 42mm 310.30.42.50.01.002 Mint Complete
This 2022 Omega Speedmaster Moonwatch Sapphire 42mm is a first watch worn on the moon, featuring photos and a video on the seller's website.
- Condition: Minty fresh
- Case size: 42mm
- Year: 2022
- Contents: watch,inner & outer boxes,warranty card,pictogram,master chronometer,instruction booklet,black travel case,hang tag,cleaning cloth,Moonwatch Booklet
Omega Speedmaster Moonwatch Sapphire - 3861 - 310.30.42.50.01.002 (new / 2025)
This Omega Speedmaster Moonwatch Professional features a 42mm stainless steel case and is powered by the 3861 Omega Master Chronometer Movement.
- Condition: Brand new
- Case size: 42mm
- Movement type: 3861 Omega Master Chronometer