Omega Speedmaster Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Bracelet
Reference 310.30.42.50.01.001
About this watch
The Omega Speedmaster Professional Moonwatch 3861 is a masterpiece that combines timeless elegance with modern technology. Founded in 1848, Omega has been a pillar in the world of horology, synonymous with precision and innovation. From its stunning design to its robust functionality, it encapsulates the spirit of adventure and precision that Omega is known for. The Speedmaster line has always been a favorite, and the 3861 model is no exception. With a diameter of 42 mm, the stainless steel case provides both durability and a polished aesthetic. The tachymeter bezel allows for speed calculations over a known distance, making it not just a pretty face but a functional tool. At the heart of the Speedmaster Professional Moonwatch is the Omega Caliber 3861, a hand-wound movement that's a modern upgrade from previous models, incorporating a co-axial escapement and a silicon balance spring. The craftsmanship is evident in the intricate details of the movement, which you can admire through the closed case back.
Key Features
- Stainless steel case with black matte finish
- 42 mm diameter for a refined yet statement-making size
- Plexi glass for added durability and shock resistance
- Master Chronometer certification by METAS for accuracy and reliability
- Hand-wound Omega Caliber 3861 movement with co-axial escapement and silicon balance spring
- Chronograph function with small seconds, hours, and minutes
- Water resistance of 50 meters for everyday wear
Specifications
- Brand
- Omega
- Family
- Speedmaster
- Model
- Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Bracelet
- Reference
- 310.30.42.50.01.001
- Movement
- 3861
- Movement Features
-
- Small Seconds, Hours, Minutes
- Chronograph
- Chronometer
- Case
- Stainless Steel 42mm
- Dial Color
- Black
- Crystal
- Plexi
- Water Resistance
- 50
Current Listings
![[WTS] Omega Speedmaster Racing - 329.30.44.51.01.001 - Box and Papers - Price Reduced!](https://preview.redd.it/cj0dzm7r6aog1.jpg?width=640&crop=smart&auto=webp&s=7d7158aa455bc0e789f84dc2a2a8ba5d6d999964)
Omega Speedmaster Racing - 329.30.44.51.01.001 - Box and Papers - Price Reduced!
A Omega Speedmaster Racing Chronograph in the model 329.30.44.51.01.001 features a 44.25mm size and has all functions working as expected.
- Condition: pre-owned with minor wear
- Size: 44.25mm diameter
- Bracelet material: stainless steel
![[WTS] Omega Speedmaster First Omega In Space (FOIS)](https://preview.redd.it/zoxliqkl39og1.jpg?width=640&crop=smart&auto=webp&s=4a5f59521d3227f9903af07e06068565a5db88ef)
Omega Speedmaster First Omega In Space (FOIS)
This Omega Speedmaster "First Omega in Space" features a size of 39.7mm and comes with multiple straps.
- Case Size: 39.7mm
- Strap Count: 6
- Includes: Omega boxes,pictogram card,operating instructions booklet
![[WTS] Omega Speedmaster Reduced 3510.50 Mint Full Set $3250](https://preview.redd.it/klkjet8qu7og1.jpg?width=640&crop=smart&auto=webp&s=d5bb797a2795e334cc8a8fcfe058af83e94979b2)
Omega Speedmaster Reduced 3510.50 Mint Full Set $3250
A beautiful Omega Speedmaster Reduced from 1998, featuring a matte black dial with white inscriptions and a stainless steel case measuring 39mm.
- Condition: Mint
- Case size: 39mm diameter
- Movement: Automatic Omega caliber 3220 (ETA 2890-2 with Dubois-Depraz chronograph module)
- Bracelet type: Omega 1469
![[WTS] Omega Speedmaster 3520.53 - $2,690](https://preview.redd.it/xxxsfwo1l4og1.jpg?width=640&crop=smart&auto=webp&s=3c138fbd4da19312f116ea46e5178d6ecfdbc24c)
Omega Speedmaster 3520.53 - $2,690
Up for sale is my great condition Omega Speedmaster 3520.53, which measures 39mm and has an automatic movement.
- Condition: great condition with minor usage marks and patina
- Case size: 39mm diameter
- Movement type: automatic
- Bracelet type: original Omega Steel speedmaster bracelet
![[WTS] Omega Speedmaster Moonwatch Professional White Dial 310.30.42.50.04.001 - Full Set - 2025 - Excellent Condition](https://external-preview.redd.it/f5pNGn3VQgMfaGiAah6jvJn7JOe7AufqRp1C0S51kCg.jpeg?auto=webp&s=434beb0c982f2033919473293b4273cf34a52aac)
Omega Speedmaster Moonwatch Professional White Dial 310.30.42.50.04.001 - Full Set - 2025 - Excellent Condition
2025 Omega Speedmaster Professional Moonwatch with a white dial, excellent condition, and minimal superficial wear.
- Condition: Excellent pre-owned
- Case material: Stainless steel
- Case diameter: 42mm
- Movement type: Manual-winding
![[WTS] Omega Speedmaster Professional Moonwatch](https://preview.redd.it/ig3a864jp3og1.jpg?width=640&crop=smart&auto=webp&s=59008991bdfacfabf281d71774e8635712de807b)
Omega Speedmaster Professional Moonwatch
A brand new Omega Speedmaster Professional Moonwatch with the caliber 1816, purchased at a local AD and barely worn.
- Condition: Great condition
- Caliber: 1816
- Purchase Year: 2021-2022
![[WTS] Omega Speedmaster 38 Co-Axial Chronograph 324.30.38.50.02.001](https://preview.redd.it/98rx3s7jz2og1.jpg?width=640&crop=smart&auto=webp&s=7884ecb87c6cd82063a999f905c4e44425bb107b)
Omega Speedmaster 38 Co-Axial Chronograph 324.30.38.50.02.001
This Omega Speedmaster 38 Co-Axial Chronograph features a silver dial and comes with various accessories, including the original bracelet and inner box.
- Condition: Excellent overall condition, very minimal wear
- Case material: Stainless steel
- Bracelet type: Original Omega stainless steel bracelet
- Additional straps: Brown leather strap
![[WTS] Omega Speedmaster Skywalker X-33 Titanium Chronograph 31890457901001 = Box Paper](https://preview.redd.it/p6ozhkugx2og1.jpg?width=640&crop=smart&auto=webp&s=50b7d6b06e310304f9b785a2ed93a452db086b4b)
Omega Speedmaster Skywalker X-33 Titanium Chronograph 31890457901001 = Box Paper
The Omega Speedmaster Skywalker X-33 is a technologically advanced timepiece designed for professional use, featuring a black dial and full titanium construction.
- Condition: Pre-owned with honest signs of previous wear
- Case size: 45mm diameter
- Bezel condition: attractive condition
- Dial condition: perfect in every way
![[WTS] Omega Speedmaster Professional Moonwatch Yellow Patina 1974 (Unpolished)](https://preview.redd.it/46y74hwys2og1.jpg?width=640&crop=smart&auto=webp&s=7f418d22a68d10cbce260da3c205132db9bf239a)
Omega Speedmaster Professional Moonwatch Yellow Patina 1974 (Unpolished)
The Omega Speedmaster reference 145.022-74 represents the authentic moon landing heritage in pristine, unpolished condition. This manual winding caliber 861 chronograph showcases remarkable preservation with factory-sharp case edges and original finishing intact throughout its 42mm steel case.
- Condition: unpolished, unrestored
- Case dimensions: 42 x 48mm
- Year of production: 1974
- Movement caliber: 861 chronograph