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 Speedmaster3590.50 – Unpolished Classic](https://external-preview.redd.it/bq19TQDHXIiNf5PqsKkLb8n4nt9gn3Qk4YrXYTBjuAQ.jpg?auto=webp&s=d7e492d8509072c3900b10b7a0f6c5a110b0e814)
Omega Speedmaster3590.50 – Unpolished Classic
a classic, unpolished Omega Speedmaster with a unique character
- Material: steel
- Band: leather strap
![[WTS]: Omega Speedmaster Professional Moonwatch Full kit 12/24](https://preview.redd.it/ye5ukg4ffcxf1.jpeg?auto=webp&s=cb23bef97030d18d2120d4f5750656cf53e778b9)
: Omega Speedmaster Professional Moonwatch Full kit 12/24
This Omega Speedmaster Professional Moonwatch Hesalite is a full kit in very good condition. It features a Hesalite crystal and comes with a warranty card dated 12/24.
- Condition: Very nice shape, small marks and scratches
- Warranty card date: 12/24
- Shipping method: FedEx
![[WTS] Omega Speedmaster. Moonwatch. 3570.50. Strong Lume.](https://preview.redd.it/ihv0zylmubxf1.jpeg?auto=webp&s=811e6bb2aa5c79c6bc05e2035f360a813519fe8e)
Omega Speedmaster. Moonwatch. 3570.50. Strong Lume.
This is an Omega Speedmaster Moonwatch, a model known for its strong lume and moon phase display.
- Lume strength: strong
- Shipping: Fedex with insurance
- Location: NJ USA
![[WTS] Omega Speedmaster Moonwatch Professional Sapphire Sandwich 310.30.42.50.01.002](https://external-preview.redd.it/jXAWsDQElDdmPQrPvJNR7QPLVYTnvZmaDBY9oRRQlbQ.jpg?auto=webp&s=1228a76f2a10e013989f2bce39978bb38876b580)
Omega Speedmaster Moonwatch Professional Sapphire Sandwich 310.30.42.50.01.002
This Omega Speedmaster Moonwatch Professional features a sapphire sandwich case and has been the owner's daily wear since new.
- Condition: Excellent condition, some small signs of use
- Purchase Date: July 2025
- Warranty Card Date: June 2025
- Bracelet Links: full kit including all links
![[WTS] Omega Speedmaster 3590.50](https://preview.redd.it/srw2wa1vfbxf1.jpg?width=640&crop=smart&auto=webp&s=164344a75333fedb27704734538fff09287a1646)
Omega Speedmaster 3590.50
- Gender: men's
- Water Resistance: 30m
![[WTS] Omega Speedmaster 3513.53 Japanese Market 39mm 1800$ 🔥](https://external-preview.redd.it/OWFvbnBxaTd3YXhmMa2D6vn_ZAvIIOhTe8xo8nO2LZCJPdElCaFA-BCAedNH.png?format=pjpg&auto=webp&s=3d506d94120a102c62d1b447e6512a9ba7a13846)
![[WTS] Omega Speedmaster Reduced 3510.50 (EUROPE 🇪🇺)](https://preview.redd.it/bl8yfgs5waxf1.png?width=640&crop=smart&auto=webp&s=dec7932190098908c6ee4a9c6b9c951752b28564)
![[WTS] Omega Speedmaster $4,511 BRAND NEW](https://preview.redd.it/e8erriee4axf1.jpg?width=640&crop=smart&auto=webp&s=de60edbe8bd23609db8e4790a7635a7555ce6468)
Omega Speedmaster $4,511 BRAND NEW
This is a brand new Omega Speedmaster watch. It's a classic design that exudes style and sophistication.
- Condition: Brand New
![[WTS] Omega Speedmaster Dark Side of the Moon Vintage Black Full Set 311.92.44.51.01.006 - $8,195](https://preview.redd.it/0xppa3ztt9xf1.jpg?width=640&crop=smart&auto=webp&s=d965ea62f3c3a7894196d4597a51b2a764148f8e)
Omega Speedmaster Dark Side of the Moon Vintage Black Full Set 311.92.44.51.01.006 - $8,195
This Omega Speedmaster Moonwatch, part of the Dark Side of the Moon collection, features a Vintage Black design.
- Condition: Excellent condition with minimal signs of wear
- Year: 2022
- Contents: Watch,Inner & Outer Box,International Warranty Card,Pictograms Card,Card Holder,Operating Instructions Manual,Omega Travel Box
- Condition Details: Strap is relatively new (purchased 4/27/25), Inner box has some wear