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 Broadarrow. Strong Lume.](https://preview.redd.it/adx7r1h7nlyg1.jpeg?auto=webp&s=72249c006c47c1375d93667db6c915570f0c40c9)
Omega Speedmaster Broadarrow. Strong Lume.
A vintage Omega Speedmaster Broadarrow with strong lume, available for sale.
- Condition: Runs well
- Lume: strong
- Shipping: Fedex with insurance
![[WTS] Omega Speedmaster Reduced "Michael Schumacher" Limited Edition, 3517.30.00. Card Included. Collector's watch. Clean..](https://preview.redd.it/6ur3wp62mlyg1.jpeg?auto=webp&s=412fd0119d2b170f283e1ce428d309c82927b531)
Omega Speedmaster Reduced "Michael Schumacher" Limited Edition, 3517.30.00. Card Included. Collector's watch. Clean..
A collector's Omega Speedmaster Reduced 'Michael Schumacher' Limited Edition, in good condition with a card included.
- Condition: Clean
- Shipping method: Fedex with insurance
- Location: NJ USA
![[WTS] OMEGA Speedmaster Professional Sapphire Sandwich 3861 Latest Model on Forstner Bullet - Watch Only - $5400 shipped CONUS](https://preview.redd.it/yx5c9cozhlyg1.jpg?width=640&crop=smart&auto=webp&s=6f5b34aaf0acbc645db315eb833ed7398009c7e0)
OMEGA Speedmaster Professional Sapphire Sandwich 3861 Latest Model on Forstner Bullet - Watch Only - $5400 shipped CONUS
The Omega Speedmaster Professional Sapphire Sandwich 3861 is a latest model watch sold as watch only, with shipping included to CONUS.
![[WTS] Omega Speedmaster. Sapphire Sandwich. Box, Cards.](https://preview.redd.it/v2ikps3n8lyg1.jpeg?auto=webp&s=4adeca9f58bccc7266dac66bedfc4cb304cac435)
Omega Speedmaster. Sapphire Sandwich. Box, Cards.
A Omega Speedmaster sapphire sandwich watch with box and cards is being sold.
- Location: NJ USA
![[WTS] Omega Speedmaster 40 3211.31](https://preview.redd.it/q72edb1pvkyg1.jpg?width=640&crop=smart&auto=webp&s=4e99af1e7ad06a8a189b8fe9571f0de853db8199)
Omega Speedmaster 40 3211.31
A used Omega Speedmaster 40mm model 3211.31, featuring a minor scratch on the crystal.
- Condition: Minor scratch on crystal
- Bracelet length: 7 inches
![[WTS] Omega Speedmaster Professional. Moonwatch. 3570.50. Very nice condition...](https://preview.redd.it/csgqqpa9vkyg1.jpeg?auto=webp&s=9e29f7fce1f0161ad410925cf2679416a23a5e44)
Omega Speedmaster Professional. Moonwatch. 3570.50. Very nice condition...
This Omega Speedmaster Professional Moonwatch is a high-end timepiece with a rich history and design.
- Condition: Very nice condition
- Location: NJ USA
- Shipping: included
![[WTS] 🚀🌗Brand New 2026 Full Set - Omega Speedmaster Moonphase Reference: 304.30.44.52.01.001 🚀🌗](https://external-preview.redd.it/cm13ZnQ1ZzNka3lnMY-gtVw_zHCO2_RK8gre-2vz3D5bZNzmPehEUxC3MfzG.png?format=pjpg&auto=webp&s=5883821226dedff27d969487f97c46c513af53ed)
🚀🌗Brand New 2026 Full Set - Omega Speedmaster Moonphase Reference: 304.30.44.52.01.001 🚀🌗
This listing is for a brand new Omega Speedmaster Moonphase watch, full set with warranty card, double box, and other included items.
- Condition: Brand New
- Bracelet length: fully linked
![[WTS] Omega OEM Integrated Speedmaster Moonwatch Rubber Straps - One with OEM Clasp - One Without Clasp (Both Backordered thru Omega)](https://preview.redd.it/q08iil76akyg1.jpg?width=640&crop=smart&auto=webp&s=f58bf36d0c6c14171817d5e313ffa6c2fff78c06)
Omega OEM Integrated Speedmaster Moonwatch Rubber Straps - One with OEM Clasp - One Without Clasp (Both Backordered thru Omega)
Additional details are about Omega OEM integrated Speedmaster Moonwatch rubber straps, one with an OEM clasp and one without.
- Condition: Very Good
- Clasp type: stainless steel deployant clasp (16mm)
- Lug size: 20mm
- Condition of strap 1: with clasp
![[WTS] BNIB 2026 Omega Speedmaster Professional White $7,890](https://preview.redd.it/xcp8bwtq8kyg1.jpeg?auto=webp&s=335c28afa5e48ab03b6be6209cd402a33f07736c)
BNIB 2026 Omega Speedmaster Professional White $7,890
The Omega Speedmaster Moonwatch Professional features a glossy white lacquered dial and is powered by the updated 3861 hand-wound movement.
- Condition: Brand new in box
- Case Size: 42mm diameter
- Case Thickness: 13.2mm
- Lug Width: 20mm