Omega Speedmaster Speedmaster Professional Moonwatch 3861 Sedna Gold / Black / Bracelet
Reference 310.60.42.50.01.001
About this watch
The Omega Speedmaster Professional Moonwatch 3861 Sedna Gold is a legendary timepiece that combines heritage, craftsmanship, and functionality in a way that few can match. Its stunning aesthetics, featuring a unique blend of black and gold, create a luxurious yet sporty vibe that can transition seamlessly from casual to formal settings. The watch strikes a balance between boldness and wearability, with a 42mm diameter and 13.18mm height that ensures it will never go out of style. Inside this beauty lies the Omega caliber 3861, an updated version of earlier calibers featuring a co-axial escapement and silicon balance spring. Certified by METAS, this watch is not just accurate but highly resistant to magnetic fields reaching up to 15,000 gauss. With a manual-winding chronograph movement and power reserve of 50 hours, you'll have the pleasure of winding it yourself while enjoying precise timekeeping. The black sunburst finish dial is mesmerizing, providing a backdrop for stick hands that lend a sleek, modern look while ensuring legibility at a glance. One of the standout features of the Speedmaster is its durability, with scratch-resistant sapphire glass and a water resistance rating of 50 meters. The open case back allows you to admire the intricate workings of the Omega caliber 3861, making it a treat for watch lovers.
Key Features
- Omega caliber 3861 movement
- Sedna Gold case
- Black sunburst finish dial
- Scratch-resistant sapphire glass
- 50m water resistance
- Manual-winding chronograph movement
- Co-axial escapement and silicon balance spring
Specifications
- Brand
- Omega
- Family
- Speedmaster
- Model
- Speedmaster Professional Moonwatch 3861 Sedna Gold / Black / Bracelet
- Reference
- 310.60.42.50.01.001
- Movement
- 3861
- Movement Features
-
- Small Seconds, Hours, Minutes
- Chronograph
- Chronometer
- Case
- Sedna Gold 42mm
- Dial Color
- Black
- Crystal
- Sapphire
- Water Resistance
- 50
Current Listings
![[WTS] November 2025 Omega Speedmaster Sapphire Complete Set *$7,200 + label*](https://preview.redd.it/5h1v6txzet4g1.jpg?width=640&crop=smart&auto=webp&s=69b438caba1eb3fbdabbe4ab2e4021e36e416f2e)
November 2025 Omega Speedmaster Sapphire Complete Set *$7,200 + label*
The watch is a November 2025 Omega Speedmaster Sapphire Complete Set with micro-adjust clasp, featuring all cards included, travel case, and Speedmaster literature.
- Condition: Brand new, fully stickered and unworn
- Year: November 2025
- Micro-adjust clasp: available
- State: Louisiana
![[WTS] Omega Speedmaster Professional “Tokyo 2020 Yellow” – Ref. 522.20.42.30.01.001 – Complete Set – $6500](https://preview.redd.it/1gedhkzs4p4g1.jpg?width=640&crop=smart&auto=webp&s=495e757b50916597f1c0411ca597714b78746fcf)
Omega Speedmaster Professional “Tokyo 2020 Yellow” – Ref. 522.20.42.30.01.001 – Complete Set – $6500
This Omega Speedmaster Professional features a 42mm stainless steel case with yellow gold accents and black dial with gold subdials, powered by the classic hand-wound Caliber 1861 movement. It comes with various accessories as part of its complete set.
- Condition: Very good pre-owned
- Case diameter: 42mm
- Bracelet type: stainless steel
- Movement: hand-wound Caliber 1861
![[WTS] Omega OEM Speedmaster Moonwatch Professional Black Fabric Strap & Omega OEM Deployant Clasp](https://preview.redd.it/xzolj2r51o4g1.jpg?width=640&crop=smart&auto=webp&s=22b25b5b535828def14cfc40c38e7a108046ab75)
Omega OEM Speedmaster Moonwatch Professional Black Fabric Strap & Omega OEM Deployant Clasp
This Omega Speedmaster Moonwatch Professional features a black fabric strap, stainless steel deployant clasp, and comes with original packaging.
- Condition: As New
- Strap material: black fabric
- Clasp type: Omega OEM Stainless Steel Deployant/16mm
- Lug width: 20mm
![[WTS] Omega 20mm OEM Integrated Speedmaster Moonwatch Professional Black Rubber Strap (Sold Out) & Omega OEM Deployant Clasp](https://preview.redd.it/fvnrkkp4yn4g1.jpg?width=640&crop=smart&auto=webp&s=accac587208836b705692a6f4d383b3fa0cb8d20)
Omega 20mm OEM Integrated Speedmaster Moonwatch Professional Black Rubber Strap (Sold Out) & Omega OEM Deployant Clasp
A black rubber strap for the Omega Speedmaster Professional, featuring curved ends and a 20mm width. It is no longer available at Omega AD or online.
- Strap Ref: 032Z017245 (Black Rubber, curved ends, 20mm/16mm)
- Clasp Ref: 94521633 (Omega OEM Stainless Steel Deployant/16mm)
- Fitment: Speedmaster Professional (20mm lug)
![[WTS][US] Omega Speedmaster Broad Arrow - White Dial - 42mm - 3551.20.00 - Full Set](https://preview.redd.it/vn8hys5hgl4g1.jpg?width=640&crop=smart&auto=webp&s=cc0fe146d9ec03d04ae7f68fcff320b6a5c9225b)
[US] Omega Speedmaster Broad Arrow - White Dial - 42mm - 3551.20.00 - Full Set
This Omega Speedmaster Broad Arrow features a white dial, 42mm case size, and comes as a full set including the watch, box, both manual, and triple cards.
- Condition: Fantastic condition with only minor hairlines
- Case diameter: 42mm
- Bracelet condition: minor hairlines
![[WTS] 2025 OMEGA SPEEDMASTER WHITE DIAL, LIKE NEW FULL SET $7,350 USD + shipping](https://preview.redd.it/kduzjf538h4g1.jpg?width=640&crop=smart&auto=webp&s=78307622b055f02c19e08685c6946667d4920713)
2025 OMEGA SPEEDMASTER WHITE DIAL, LIKE NEW FULL SET $7,350 USD + shipping
The Omega Speedmaster White Dial 2025 features a clean white dial, sapphire crystal, and classic stainless steel case and bracelet.
- Condition: Like new
- Year: 2025
- Case material: stainless steel
- Bracelet material: stainless steel
![[WTS] Omega Speedmaster Professional Moonwatch Tropical Brown Dial Heavy Patina Blue Insert 1969 (Serviced) 🟤](https://preview.redd.it/han7r89rog4g1.jpg?width=640&crop=smart&auto=webp&s=60830983bad47189b04b95e7e4fe1d390ac69fc1)
Omega Speedmaster Professional Moonwatch Tropical Brown Dial Heavy Patina Blue Insert 1969 (Serviced) 🟤
This is a 1969 Omega Speedmaster Moonwatch with a tropical brown dial featuring a deep, even transformation with heavy yellow patina across all indices and matching hands. The watch has been professionally serviced and runs properly.
- Condition: Beautiful condition
- Size: 42mm diameter
- Year: 1969
- Case back: Flat case back
![[WTS] 1991 Omega Speedmaster Moonwatch Ref 3590.50 with abstract](https://external-preview.redd.it/czB3MmgwampmZzRnMT5tW3o0YBi9xiSpHQNk8ZlwNawNWy9RCFTWP-IafNa9.png?format=pjpg&auto=webp&s=e0c0eaea339b5bf54d870f7475c05a81a06ee9c0)
1991 Omega Speedmaster Moonwatch Ref 3590.50 with abstract
This is a 1991 Omega Speedmaster Moonwatch with a caliber 861 movement and excellent tritium dial. The watch appears to be in great condition with original hands and an original Omega hesalite crystal.
- Condition: Excellent vintage condition
- Movement: Caliber 861
- Serial number: 482774XX
- Bracelet size: adjusts to fit up to 7.5 inch wrist
![[WTS] Omega Speedmaster Professional Moonwatch 310.30.42.50.01.001 – Unworn, FULL SET – $5,900 (Shipped CONUS)](https://preview.redd.it/id3oj1qqdg4g1.jpg?width=640&crop=smart&auto=webp&s=324d72b59f01d2f44f2a51ab7584952ddc3bf66d)
Omega Speedmaster Professional Moonwatch 310.30.42.50.01.001 – Unworn, FULL SET – $5,900 (Shipped CONUS)
This is an Omega Speedmaster Professional Moonwatch with a manual-wind Master Chronometer movement and legendary 'Moonwatch' design in a 42mm stainless steel case.
- Condition: Unworn, excellent condition
- Movement type: Manual-wind
- Case material: 42mm stainless steel
- Bracelet included: Yes, original bracelet with all links