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.
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MSRP: $42,600
Market Price: $23,979

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] Omega Speedmaster ‘Sapphire Sandwich’ Moonwatch White, B+P 2025

Omega Speedmaster ‘Sapphire Sandwich’ Moonwatch White, B+P 2025

Omega - 31032425004001 · $6,900
This is a white Omega Speedmaster 'Sapphire Sandwich' Moonwatch, featuring a 42mm case size and Omega 3861 movement.

  • Condition: Very Good preowned condition with minor hairlines from light handling
  • Case size: 42mm
  • Movement: Omega 3861
  • Power reserve: 5 hours
Posted at
Dec 20, 2025, 9:16 PM
Active
[WTS] Omega Speedmaster FOIS | 310.30.40.50.06.001 | Complete Box & Papers 2024 | $6,849 Shipped

Omega Speedmaster FOIS | 310.30.40.50.06.001 | Complete Box & Papers 2024 | $6,849 Shipped

This Omega Speedmaster "First Omega in Space" (FOIS) model is a historically faithful modern reference that pays homage to the watch worn by astronaut Walter Schirra during the Mercury-Atlas 8 mission. It has a straight-lug case, symmetrical profile, and hesalite crystal.

  • Condition: Excellent / near-mint
  • Case diameter: 40mm
  • Crystal material: hesalite
  • Year purchased: 2024
Posted at
Dec 20, 2025, 9:13 PM
Active
[WTS] Omega Speedmaster Dark Side of the Moon 311.92.44.30.01.001 | Ceramic |FULL SET

Omega Speedmaster Dark Side of the Moon 311.92.44.30.01.001 | Ceramic |FULL SET

This Omega Speedmaster Dark Side of the Moon features a full-ceramic case and buckle, presented in excellent condition.

  • Condition: Mint, like-new
  • Case material: Full ceramic
  • Year: 2019
Posted at
Dec 20, 2025, 6:57 PM
Active
[WTS] Omega Speedmaster “First Omega in Space” FOISRef: 310.30.40.50.06.001 | 2025 | Full Set | Very Good Condition | Active Factory Warranty

Omega Speedmaster “First Omega in Space” FOISRef: 310.30.40.50.06.001 | 2025 | Full Set | Very Good Condition | Active Factory Warranty

This Omega Speedmaster is known as the 'First Omega in Space' with a FOIS reference number, specifically Ref: 310.30.40.50.06.001, from the year 2025.

  • Condition: Very Good
Posted at
Dec 20, 2025, 5:33 PM
Active
[WTS] Omega Speedmaster Moonwatch Professional White dial Black rubber strap 42mm Box & Papers 310.32.42.50.04.001

Omega Speedmaster Moonwatch Professional White dial Black rubber strap 42mm Box & Papers 310.32.42.50.04.001

This Omega Speedmaster Moonwatch Professional features a white dial on a black rubber strap, with a 42mm case and various complications including a chronograph and tachymeter.

  • Condition: Excellent
  • Case Material:
  • Diameter: 42mm
  • Water Resistance:
Posted at
Dec 20, 2025, 4:30 PM
Active
[WTS] Omega Vintage Speedmaster Bracelet 1496 (18mm end-links)

Omega Vintage Speedmaster Bracelet 1496 (18mm end-links)

Omega - 1496 · $299
Up for sale is my Omega 1496 bracelet with 18mm endlinks (ref#813) that I had on my Speedmaster Reduced, now collecting dust.

  • Condition: good shape for its age
  • End links size: 18mm
Posted at
Dec 20, 2025, 4:06 PM
Active
[WTS] Omega Speedmaster. 39mm. Automatic. $1550 only !!

Omega Speedmaster. 39mm. Automatic. $1550 only !!

Omega - Speedmaster · $1,550
This Omega Speedmaster is a 39mm automatic chronograph watch with an AM strap.

  • Condition: Very nice
  • Case Size: 39mm diameter
  • Movement Type: Automatic
Posted at
Dec 20, 2025, 11:54 AM
Active
[WTS] 1991 Omega Speedmaster Moonwatch Ref 3590.50 with abstract

1991 Omega Speedmaster Moonwatch Ref 3590.50 with abstract

Omega - 3590.50 · $4,099
A 1991 Omega Speedmaster Moonwatch with a caliber 861 movement and tritium dial and hands, in excellent condition and appearing unpolished.

  • Condition: Excellent, unpolished
  • Movement: Caliber 861
  • Serial number: 482774XX
  • Bracelet size range: fits wrists over 7.5"
Posted at
Dec 19, 2025, 5:59 PM
Active
[WTS] Omega Speedmaster Broad Arrow 321.10.42.50.01.001 2019

Omega Speedmaster Broad Arrow 321.10.42.50.01.001 2019

This Omega Speedmaster Broad Arrow is a 2019 model with a crisp case and running perfectly, featuring a massive bracelet.

  • Condition: Incredible-condition
  • Dimensions: 42mm diameter
  • Year: 2019
Posted at
Dec 19, 2025, 12:15 PM
Active