Omega Speedmaster Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Kanjar Oman
Reference 310.30.42.50.01.003
About this watch
The Omega Speedmaster Professional Moonwatch 3861 is a piece of history wrapped around your wrist, with its rich lineage and modern upgrades capturing the hearts of watch enthusiasts and collectors alike. This manual-winding chronograph movement features a co-axial escapement and silicon balance spring, making it resistant to magnetic fields up to 15,000 gauss. The plexi glass provides a warm, vintage feel that many collectors adore, while the stainless steel case measures 42mm in diameter and has a water resistance of 50 meters. This timepiece is perfect for everyday wear, suitable for both formal and casual occasions. With its stunning design, robust movement, and versatility, it's a celebration of heritage, precision, and style.
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Key Features
- Omega Caliber 3861 Movement
- Plexi Glass with Vintage Feel
- 42mm Stainless Steel Case
- 50m Water Resistance
- Manual-Winding Chronograph Function
- Co-Axial Escapement and Silicon Balance Spring
Specifications
- Brand
- Omega
- Family
- Speedmaster
- Model
- Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Kanjar Oman
- Reference
- 310.30.42.50.01.003
- Movement
- 3861
- Movement Features
-
- Small Seconds, Hours, Minutes
- Chronograph
- Chronometer
- Case
- Stainless Steel 42mm
- Dial Color
- Black
- Crystal
- Plexi
- Water Resistance
- 50
Current Listings
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Omega "Silver Snoopy" Speedmaster 2025
A coveted collector piece commemorating NASA's Silver Snoopy Award, featuring a highly detailed caseback animation of Snoopy in orbit.
- Condition: Brand new, unworn
- Case size: 42mm diameter
- Case material: stainless steel
- Dial color: silver with blue subdials
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Omega Speedmaster ’57 40.5mm Red Co-Axial Chronograph BOXES/PAPERS!
A red dial Omega Speedmaster '57 chronograph, 40.5mm in size, powered by a manual movement.
- Condition: pre-owned, nice condition with typical cosmetic wear throughout
- Case Diameter: 40.5mm
- Movement: manual
- Water Proofness: 50 meters depth rating
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OMEGA speedmaster marui limited model 3510.21.00 automatic
The watch being listed is an Omega Speedmaster Marui Limited Model 3510.21.00 automatic.
![[WTS] Omega Speedmaster Reference 311.30.42.30.01.005](https://external-preview.redd.it/dHZ6Nmc3YTQwcWhnMXqGATwurfwqbJBOmRsGE7caoEqzuQVvn_7fFhBDkCDC.png?format=pjpg&auto=webp&s=ccbca76a3b897b99acdf7e2a68f24093fcbb5b5f)
Omega Speedmaster Reference 311.30.42.30.01.005
This Omega Speedmaster professional is a beautiful watch from 2019, complete with everything and in perfect condition.
- Condition: perfect
- Movement: manual winding
- Size: 42mm diameter
- Year: 2019
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Omega Speedmaster 3520.53 Box, Manual, Card - $2,850 - Reserved post for u/subengineer
A Omega Speedmaster 3520.53 Full Kit is being sold in good condition with an automatic movement and a steel case.
- Condition: Good condition with some usage marks and minimal oxidation
- Case Size: 39mm diameter
- Water Resistance: Not specified
- Movement Type: Automatic
![[WTS] Omega Speedmaster Professional Moonwatch Steel Step Dial Yellow Patina 1969 (Serviced)](https://preview.redd.it/mz4molkphlhg1.jpg?width=640&crop=smart&auto=webp&s=9ee8cb728d4d3ca133aca2b648d6fd5cfe13b246)
Omega Speedmaster Professional Moonwatch Steel Step Dial Yellow Patina 1969 (Serviced)
This Omega Speedmaster Moonwatch ref. 145.022-69 is presented in all-original configuration and features a step dial with pronounced patina across all indices.
- Condition: Very nice overall condition, with honest wear consistent with age
- Size: 42mm diameter
- Year: 1969
- Movement Status: Professionally serviced in January 2026
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310.30.42.50.04.001 $7399](https://preview.redd.it/flmpsh6h9lhg1.jpg?width=640&crop=smart&auto=webp&s=aa5c75168793394c36baff4218102e2bb767d237)
2024 OMEGA SPEEDMASTER WHITE DIAL 310.30.42.50.04.001 $7399
This is a 2024 OMEGA SPEEDMASTER with a white dial and various features such as a stainless steel case, sapphire crystal, and a 50-hour power reserve.
- Condition: Pre Owned, Cosmetic Condition: 9/10
- Case Material: STAINLESS/SAPPHIRE
- Water Resistance: 50 METERS/165 FEET
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Omega Speedmaster Reduced 39mm Serviced ⏱
This is a neo-vintage Omega Speedmaster Reduced, coming with an original Omega modern box set and manual. The watch features a 39mm case and has been accurately timekeeping after service.
- Case Size: 39mm
- Lug To Lug: 45mm
- Lug Width: 18mm
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2023 Omega Speedmaster Moonwatch 42mm Moonshine Gold Green 310.60.42.50.10.001 Full Set
2023 Omega Speedmaster Moonwatch 42mm Moonshine Gold Green, a manual wind mechanical watch in very good condition.
- Condition: Very nice preowned condition with some light scratches on the case and bracelet
- Case Dimensions: 42mm diameter
- Movement: Manual Wind, Mechanical
- Original Purchase Date: September 2023