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

Omega Speedmaster Moonwatch Sapphire - 3861 - 310.30.42.50.01.002 (new / 2025)
This Omega Speedmaster Moonwatch Professional features a 42mm stainless steel case and is powered by the 3861 Omega Master Chronometer Movement.
- Condition: Brand new
- Case size: 42mm
- Movement type: 3861 Omega Master Chronometer

Omega Speedmaster Moonwatch Hesalite - 3861 - 310.30.42.50.01.001 (new / 2025)
A brand new Omega Speedmaster Moonwatch Professional Hesalite with a stainless steel case and 3861 Omega Master Chronometer movement.
- Condition: Brand new
- Case size: 42mm diameter
- Movement: Omega Master Chronometer

>>REDUCED<< OMEGA SPEEDMASTER PROFESSIONAL 1974 Stepped Dial
A 1974 Omega Speedmaster Professional with a stepped dial, manual winding chronograph movement (calibre 861), and tritium indices in superb condition.
- Condition: Very good vintage condition
- Diameter: 42 mm
- Bracelet: Omega Speedmaster 1125 bracelet with 516 end links
- Movement: Manual winding chronograph calibre 861

NEW 2021 Omega Speedmaster "Ed White" 39.7mm 311.30.40.30.01.001 Black Dial
The Omega Speedmaster 'Ed White' is a nod to the version worn by Ed White, featuring a black step dial and vintage-style applied logo.
- Condition: New with minor scratches from handling
- Diameter: 39.7mm
- Box And Papers: Yes

Omega Speedmaster Automatic 3510.50 39mm
a discontinued Omega Speedmaster Reduced model from 1998, featuring an automatic self-winding movement and a black dial with luminous hands and markers.
- Condition: Good
- Movement type: Automatic self-winding
- Crystal material: Hesalite

Omega Speedmaster Moonwatch Sapphire - 3861 - 310.30.42.50.01.002 (excellent)
This Omega Speedmaster Moonwatch Professional is a stainless steel watch with a 42mm case, featuring an Omega Master Chronometer movement.
- Condition: Excellent
- Case size: 42mm
- Movement type: Omega Master Chronometer

Omega 31062425099001 Speedmaster Moon watch 18K Yellow Gold
The Omega Speedmaster Moon watch is a Professional Moonshine model with an 18K yellow gold case on a rubber strap. It features a manual wind movement, 12-hour chronograph, and display caseback.
- Material: 18K Yellow Gold
- Movement: Omega caliber 3861
- Diameter: 42mm
OMEGA Speedmaster '57 Blue Chronograph Dial Steel Men's Watch 332.10.41.51.03.001
Omega Speedmaster '57 Blue Chronograph Dial Steel Men's Watch, purchased in 2024 with original AD receipt and box.
- Condition: Excellent
- Box: yes
- Papers: original AD receipt

Omega Speedmaster - FOIS - 310.30.40.50.06.001 ( excellent / 2024 )
This Omega Speedmaster FOIS is a 39.7mm stainless steel case watch with the 3861 Calibre. It comes with all original boxes, papers, booklets, and an Omega Warranty Card dated November 2024.
- Condition: Excellent condition
- Case size: 39.7mm
- Movement: Omega 3861 Calibre