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] NEW 2026 Omega Speedmaster Moonwatch Pro 42mm 310.30.42.50.01.002 Black Dial - $7,500](https://preview.redd.it/xvads9uyj4fg1.jpg?width=640&crop=smart&auto=webp&s=f528ccd579e284dda880e12a1d443b42477cd121)
NEW 2026 Omega Speedmaster Moonwatch Pro 42mm 310.30.42.50.01.002 Black Dial - $7,500
A brand new, unworn Omega Speedmaster Moonwatch Professional in stainless steel with a black dial.
- Condition: Brand new/unworn
- Material: Stainless Steel
- Size (diameter): 42mm
- Case size (with links): 8.25in
![[WTS] Omega Speedmaster Moonwatch Professional 42mm White Dial 310.30.42.50.04.001 Complete](https://preview.redd.it/kho3tfve74fg1.jpeg?width=640&crop=smart&auto=webp&s=ca7a2de27a439096b0dffbf26250e8313f3a8027)
Omega Speedmaster Moonwatch Professional 42mm White Dial 310.30.42.50.04.001 Complete
This Omega Speedmaster Moonwatch Professional features a 42mm white dial.
- Condition: In very good condition, rated at 9.7/10
- Box And Papers: true
- Links: removed links included
- Warranty: dated 2024
![[WTS] Omega Speedmaster 38 Co-Axial Chronograph Grey Dial 324.32.38.50.06.001](https://preview.redd.it/fvsv46fl54fg1.jpeg?width=640&crop=smart&auto=webp&s=e2dbb1cc32dd24b67da304afe9d89f1ba4294805)
Omega Speedmaster 38 Co-Axial Chronograph Grey Dial 324.32.38.50.06.001
Omega Speedmaster 38 Co-Axial Chronograph with a grey dial for sale.
- Condition: In very good condition, rated at 9.8/10
- Included Items: inner & outer Omega boxes, manual, microfibre cloth, hang tag, caseback sticker, pictogram card, and warranty card
- Trades Welcome: true
![[WTS] Omega Speedmaster Blue Side of the Moon Aventurine Moonphase - Full Set + Aaron Bespoke Strap, Mint!](https://preview.redd.it/ykzsru1rmzeg1.jpeg?auto=webp&s=a207644167421dde3a6f7f77c58650c00a319463)
Omega Speedmaster Blue Side of the Moon Aventurine Moonphase - Full Set + Aaron Bespoke Strap, Mint!
This Omega Speedmaster Blue Side of the Moon Aventurine Moonphase features a blue ceramic case, aventurine dial, rose gold hands and indices, tachymeter scale, moonphase display, and an Omega 9904 caliber with METAS certification.
- Condition: Mint
- Case size: 44.25mm
- Lug to lug: just under 50mm
- Strap material: python leather
![[WTS] Omega Speedmaster Professional Moonwatch 3573.50](https://preview.redd.it/29n9opk6lyeg1.jpg?width=640&crop=smart&auto=webp&s=6b464bada3844db503598f92fb68f375ab6d82e9)
Omega Speedmaster Professional Moonwatch 3573.50
This Omega Speedmaster Professional Moonwatch is in excellent condition with hardly any signs of wear and all functions working as expected.
- Condition: Excellent
- Payment Methods Accepted: crypto, other payment methods
- Available To Trade For: Tudor, Cartier, Rolex, Omega, Breitling, AP
![[WTS] Omega speedmaster Hesalite 3861, Dated 2024](https://preview.redd.it/z6ga1aov9yeg1.jpg?width=640&crop=smart&auto=webp&s=c2ea9ef7a26e30bc3f0022866ec9f04a545304ab)
![[WTS] Omega Speedmaster Professional Moonwatch Tropical Brown Dial Heavy Patina Blue Insert 1969 (Box/Serviced) 🍫](https://preview.redd.it/t1arhm7gaxeg1.jpg?width=640&crop=smart&auto=webp&s=5f047ae80cfe97fa3e53910a8fa19734ae9f5b82)
Omega Speedmaster Professional Moonwatch Tropical Brown Dial Heavy Patina Blue Insert 1969 (Box/Serviced) 🍫
This is a rare Omega Speedmaster Moonwatch from 1969, featuring a super tropical brown dial and a blue bezel with dot-over-90. The watch has been professionally serviced and runs properly.
- Size: 42mm
- Year: 1969
- Box: true
![[WTS] Omega Speedmaster Professional Moonwatch Full Steel 145.022-69 Ghost Bezel Yellow Patina Step Dial 1969 (Serviced) 🔥](https://preview.redd.it/wcufvky74xeg1.jpg?width=640&crop=smart&auto=webp&s=9b1c6a3cb036dd6cce8ff1605a51e5b8cd7a0d53)
Omega Speedmaster Professional Moonwatch Full Steel 145.022-69 Ghost Bezel Yellow Patina Step Dial 1969 (Serviced) 🔥
This Omega Speedmaster Moonwatch presents beautifully in full steel, showcasing a strong and sharp case with thick lugs that retain their original shape. The original step dial displays a warm yellow patina across the hour markers and matching hands, creating a cohesive vintage appeal.
- Condition: Serviced, excellent definition
- Year: 1969
- Size: 42mm diameter
- Movement: 861 caliber
![[WTS] Omega Speedmaster 3861 Sapphire Sandwhich](https://preview.redd.it/mxnvfnuloweg1.jpg?width=640&crop=smart&auto=webp&s=58145b49216ba3a69c8dbef178e361e0e7a2174d)
Omega Speedmaster 3861 Sapphire Sandwhich
This is a 2022 Omega Speedmaster 3861 on warranty card, sized for a 7-inch wrist. It comes with additional accessories and has shown signs of strap change wear.
- Condition: Good
- Warranty: Yes, on warranty card
- Size adjustments: [object Object]
- Accessories: New quick adjust clasp,Old clasp with micro adjustment tool,Uncle Seiko 1.5 link for dialing in fit