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 Professional Moonwatch Tropical Brown Dial Heavy Patina Blue Insert 1969 (Serviced) 🟤](https://preview.redd.it/qsbhl50a8v5g1.jpg?width=640&crop=smart&auto=webp&s=6c311a22b5401b56483d0c1d8cb4886cf0c25152)
Omega Speedmaster Professional Moonwatch Tropical Brown Dial Heavy Patina Blue Insert 1969 (Serviced) 🟤
Very rare and fully original Omega Speedmaster Moonwatch 145.022-69 in beautiful condition, featuring a deep, even transformation with heavy yellow patina across all indices and matching hands.
- Case Size: 42mm
- Year Made: 1969
- Movement Status: serviced in November 2025
![[WTS] Omega Speedmaster. 39mm. Triple Date. Clean.](https://preview.redd.it/bralpsvwiu5g1.jpeg?auto=webp&s=7750f03f49c742ab9e037c1a12192171ccc8a0dd)
Omega Speedmaster. 39mm. Triple Date. Clean.
This Omega Speedmaster is a 39mm triple date model with clean condition.
- Condition: Clean
- Case Size: 39mm
- Location: NJ USA
![[WTS] Omega Speedmaster 1957 / Broad Arrow Automatic Chrono 42mm Black Gloss Dial - Cal. 3313 High Horology Co Axial Column Wheel - Full Kit 09/2012 - $4,250 shipped CONUS](https://preview.redd.it/7t8w33f6cn5g1.jpg?width=640&crop=smart&auto=webp&s=8f5c0c65d7a2e8bae4bc552deeb7b738975b92a0)
Omega Speedmaster 1957 / Broad Arrow Automatic Chrono 42mm Black Gloss Dial - Cal. 3313 High Horology Co Axial Column Wheel - Full Kit 09/2012 - $4,250 shipped CONUS
This Omega Speedmaster 1957 Broad Arrow chronograph is a full kit with warranty card dated September 2012. It features a high horology Frederic Piguet based movement with a column wheel and Co Axial escapement.
- Condition: Excellent (minor wear on bezel and bracelet)
- Movement: Omega Caliber 3313 (Frederic Piguet based) with Co Axial escapement and column wheel
![[WTS] Omega Speedmaster Broad Arrow Olympics 2012 – Gloss White Porcelain-Like Dial • Heat-Blued Hands • Cal. 3313 Co-Axial Column-Wheel Automatic Chrono • Rubber B Croc SwimSkin Strap - $2,600 Shipped CONUS](https://preview.redd.it/u73ec61i9n5g1.jpg?width=640&crop=smart&auto=webp&s=310a9cbd9033fa1d77cd99f07f74bb0a32fbacda)
Omega Speedmaster Broad Arrow Olympics 2012 – Gloss White Porcelain-Like Dial • Heat-Blued Hands • Cal. 3313 Co-Axial Column-Wheel Automatic Chrono • Rubber B Croc SwimSkin Strap - $2,600 Shipped CONUS
The Omega Speedmaster Broad Arrow Olympics 2012 features a gloss white, porcelain-like dial with sunken subdials and heat-blued hands. It has a classic, beautiful design and is extremely refined.
- Condition: Excellent, recently pressure-tested
- Case Dimensions: case dimensions and proportions are extremely close to a Moonwatch
- Movement: Omega Caliber 3313, column-wheel, Co-Axial chronograph movement
- Straps: Rubber B Crocodile SwimSkin strap, retails for over $300
![[WTS] Omega Speedmaster Moonphase — 2022 Full Set + Extras — $7,750 OBO](https://external-preview.redd.it/3_Bhl0evAvNIutfkFX739whZNrDdvwa86IoEMibry_Y.jpeg?auto=webp&s=66087bf621f40af2b561354ec29665eeee0403c3)
Omega Speedmaster Moonphase — 2022 Full Set + Extras — $7,750 OBO
This Omega Speedmaster Moonphase is a Co-Axial Master Chronometer with Ref: 304.30.44.52.01.001, dated 2022. It's available as a full set with OEM extras.
- Condition: Very Good
- Year: 2022
- Case condition: honest clasp wear
![[WTS] Omega Speedmaster Professional Moonwatch White ref. 310.30.42.50.04.001](https://preview.redd.it/i68ch5lxul5g1.jpeg?auto=webp&s=d6113dc2f1be1a0cad181148b73654f2a906f925)
Omega Speedmaster Professional Moonwatch White ref. 310.30.42.50.04.001
This Omega Speedmaster Professional Moonwatch White features a manual wind 3861 caliber movement in a sapphire sandwich configuration, with a white lacquered dial inspired by vintage iterations.
- Condition: Minimal signs of wear, super healthy on Timegrapher
- Case size: 42mm diameter
- Movement: Manual wind 3861 caliber movement
- Crystal: Sapphire sandwich configuration with top crystal and exhibition caseback
![[WTS] 2024 Omega Speedmaster Moonphase - Box and Papers](https://preview.redd.it/4ureqr15hl5g1.jpg?width=640&crop=smart&auto=webp&s=c80640d60b220bc5284c6d6d6a447cc635c888b6)
2024 Omega Speedmaster Moonphase - Box and Papers
2024 Omega Speedmaster Moonphase with blue sun-brushed dial and ceramic bezel, powered by OMG 9904 movement.
- Condition: Really nice used condition with a few very light marks
- Case size: 44.25mm
- Movement power reserve: 60 hours
![[WTS] Omega Speedmaster Dark Side of the Moon 311.92.44.30.01.001 | Ceramic |FULL SET](https://preview.redd.it/qfmbg5wjsh5g1.jpg?width=640&crop=smart&auto=webp&s=2ba90e66fb2304a03a09a4f549b5d9019c338f3d)
Omega Speedmaster Dark Side of the Moon 311.92.44.30.01.001 | Ceramic |FULL SET
This Omega Speedmaster Dark Side of the Moon features a full-ceramic case and buckle, sold with its box and papers.
- Condition: Mint, like-new condition
- Case material: full-ceramic
- Year: 2019
![[WTS] Omega Speedmaster “The 1957 Trilogy” 60th Anniversary Limited Edition 311.10.39.30.01.001 - With accessories](https://preview.redd.it/farj68rt5h5g1.jpg?width=640&crop=smart&auto=webp&s=97f3d74c05ec9fcd4641e57f5dd919cc8ebf1db6)
Omega Speedmaster “The 1957 Trilogy” 60th Anniversary Limited Edition 311.10.39.30.01.001 - With accessories
This listing features the Omega Speedmaster “The 1957 Trilogy” 60th Anniversary Limited Edition, a commemorative watch marking the brand’s iconic design.
- Condition: Excellent pre-owned
- Accessories: booklets, straps, strap changer, travel case, tag, Double box
- Condition Detail: Undated card