Omega Speedmaster Speedmaster Professional Moonwatch 3861 Sedna Gold / Black / Alligator
Reference 310.63.42.50.01.001
About this watch
The Omega Speedmaster Professional Moonwatch 3861 Sedna Gold / Black / Alligator is a masterpiece of luxury watchmaking, blending history, craftsmanship, and modern technology. Its striking black sunburst dial and Sedna Gold case exude sophistication, while its chronograph function and co-axial escapement ensure precision and reliability. With a water resistance of 50 meters and a power reserve of 50 hours, this watch is built for performance and durability. Whether you're a seasoned collector or a first-time buyer, the Speedmaster Professional Moonwatch is sure to impress with its stunning design, exceptional movement, and practical features.
Key Features
- Omega caliber 3861 movement
- Sedna Gold case material
- Master Chronometer certification by METAS
- Chronograph function
- Co-axial escapement
- Plexi glass crystal
- 50-meter water resistance
Specifications
- Brand
- Omega
- Family
- Speedmaster
- Model
- Speedmaster Professional Moonwatch 3861 Sedna Gold / Black / Alligator
- Reference
- 310.63.42.50.01.001
- Movement
- 3861
- Movement Features
-
- Small Seconds, Hours, Minutes
- Chronograph
- Chronometer
- Case
- Sedna Gold 42mm
- Dial Color
- Black
- Crystal
- Plexi
- Water Resistance
- 50
Current Listings
![OMEGA speedmaster marui limited model 3510.21.00 automatic [WTS]](https://preview.redd.it/869o0xx1bqhg1.jpg?width=640&crop=smart&auto=webp&s=7b19fc50ab4da404b098887a6ca1e03b9ed3247b)
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
![[WTS] Omega Speedmaster 3520.53 Box, Manual, Card - $2,850 - Reserved post for u/subengineer](https://preview.redd.it/3e9v8yf48nhg1.jpg?width=640&crop=smart&auto=webp&s=6501a9ad6573b7e0f20466b1611f7426a61cee15)
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
![[wts] 2024 OMEGA SPEEDMASTER WHITE DIAL
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
![[WTS] Omega Speedmaster Reduced 39mm Serviced ⏱](https://preview.redd.it/un02ro4i5lhg1.jpg?width=640&crop=smart&auto=webp&s=ac2b3041861fc768f3b7c63fce3a32714632c9eb)
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
![[WTS] 2023 Omega Speedmaster Moonwatch 42mm Moonshine Gold Green 310.60.42.50.10.001 Full Set](https://preview.redd.it/ve9djd7ytkhg1.jpg?width=640&crop=smart&auto=webp&s=0ff233ceb28ef7e4220b8718b3db532aa57abde6)
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
![[WTS] Omega Speedmaster Pilot 332.10.41.51.01.002](https://preview.redd.it/rhpdt6bbokhg1.jpeg?auto=webp&s=ec761e07ef758205f1ba2203ffebdaa90cbd5a7c)
Omega Speedmaster Pilot 332.10.41.51.01.002
This Omega Speedmaster Pilot is a brand new, still stickered model from 2025.
- Condition: new, unworn, unsized
- Year of production: 2025
![[WTS] Omega Speedmaster Dark Side of The Moon 44.25mm 311.92.44.51.01.007 | 2021 Complete Set w/ 2 Straps](https://preview.redd.it/aiyyp6yudkhg1.jpg?width=640&crop=smart&auto=webp&s=81a5eafe064a33bd29d847242eb5c7e9cf562c81)
Omega Speedmaster Dark Side of The Moon 44.25mm 311.92.44.51.01.007 | 2021 Complete Set w/ 2 Straps
A 2021 Omega Speedmaster Dark Side of The Moon in 44.25mm size, featuring two OEM straps and a complete set with inner and outer boxes.
- Condition: Great Pre-Owned Condition
- Case Size: 44.25mm
- Service History: Unknown
- Serial Number: 340+ AMP