Omega Speedmaster Speedmaster Professional Moonwatch 3861 Sedna Gold - Ruby / Black - Ruby / Bracelet

Reference 310.55.42.50.51.001

About this watch

The Omega Speedmaster Professional Moonwatch 3861 Sedna Gold is a stunning blend of luxury and functionality, with its Sedna gold construction and intricate chronograph features. The watch's sheer elegance is undeniable, with a black sunburst finish contrasting beautifully with gem-set indexes and ruby accents. Certified as a Master Chronometer by METAS, the Omega caliber 3861 movement is an engineering marvel, resistant to magnetic fields up to 15,000 gauss. With small seconds, hours, and minutes hands, the chronograph functionality offers precision timing. The watch's durability is also noteworthy, with sapphire glass adding scratch resistance. The Sedna gold bracelet ensures a secure fit, while its adjustability makes it comfortable for wearers of all wrist sizes. This timepiece is not just a luxury item but a conversation starter, status symbol, and piece of horological history.
Buy Now on Jomashop
This is an affiliate link

Key Features

  • Omega caliber 3861 movement with Co-Axial escapement and silicon balance spring
  • Sedna gold construction with gem-set indexes and ruby accents
  • 50m water resistance with sapphire glass scratch resistance
  • Chronograph functionality with small seconds, hours, and minutes hands
  • Adjustable Sedna gold bracelet for secure fit on all wrist sizes

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch 3861 Sedna Gold - Ruby / Black - Ruby / Bracelet
Reference
310.55.42.50.51.001
Movement
3861
Movement Features
  • Small Seconds, Hours, Minutes
  • Chronograph
  • Chronometer
Case
Sedna Gold 42mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
50

Current Listings

2021 OMEGA Speedmaster Racing - 326.30.40.50.01.001326.30.40.50.01.001

2021 OMEGA Speedmaster Racing - 326.30.40.50.01.001326.30.40.50.01.001

A 2021 OMEGA Speedmaster Racing, featuring a 40mm stainless steel case with scratch-resistant sapphire crystal and 100m water resistance.

  • Condition: Like New
  • Case Size: 40mm diameter
  • Material: stainless steel
  • Crystal: scratch-resistant sapphire crystal
Posted at
Feb 7, 2025, 2:14 PM
Active
Omega Speedmaster Racing - White Dial - 329.30.44.51.04.001 ( new / 2025 )

Omega Speedmaster Racing - White Dial - 329.30.44.51.04.001 ( new / 2025 )

This Omega Speedmaster Racing Master Co-Axial features a white dial and stainless steel case.

  • Condition: Brand new
  • Case size: 44.25mm
  • Movement type: Master Co-Axial 9900 Chronometer
Posted at
Feb 6, 2025, 3:28 PM
Active
Omega Speedmaster Professional Man on The Moon 3572.50

Omega Speedmaster Professional Man on The Moon 3572.50

Omega - 3572.50 · $3,995
This Omega Speedmaster Professional Man on the Moon watch is approximately 20 years old, featuring nice patina hour markers and an open case back to view the manual wind movement.

  • Age: around 20 years
  • Case size: 42mm diameter
  • Box included: true
Posted at
Feb 6, 2025, 2:29 PM
Active
Omega SPEEDMASTER PROFESSIONAL MOONWATCH 3861 SAPPHIRE 2023 COMPLETE SET

Omega SPEEDMASTER PROFESSIONAL MOONWATCH 3861 SAPPHIRE 2023 COMPLETE SET

Omega - 31030425001002 · $5,875
A 42mm stainless steel Omega Speedmaster Professional Moonwatch with a 3861 movement and sapphire crystals, purchased from an authorized dealer in 2023.

  • Condition: Excellent Condition
  • Movement: Manual-Winding Chronograph 3861 with Co-Axial Escapement
  • Case size: 42mm
  • Crystals: Sapphire Crystals
Posted at
Feb 5, 2025, 9:18 PM
Active
>>ReDuCeD<< OMEGA SPEEDMASTER PROFESSIONAL PRE-MOON 145.022-69

>>ReDuCeD<< OMEGA SPEEDMASTER PROFESSIONAL PRE-MOON 145.022-69

Omega - 145.022-69ST · $3,650
This is a pre-moon Omega Speedmaster Professional with calibre 861, featuring a 42mm diameter case and generic tan strap.

  • Condition: Good vintage condition
  • Movement: Omega calibre 861
  • Case size: 42mm in diameter
  • Serial number: 29 million from 1970
Posted at
Feb 5, 2025, 2:08 PM
Active
Omega Speedmaster Professional Tokyo 2020 522.30.42.30.03.001

Omega Speedmaster Professional Tokyo 2020 522.30.42.30.03.001

This Omega Speedmaster Professional Tokyo 2020 is in excellent condition and comes with original boxes and books.

  • Condition: Excellent condition
  • Warranty card: no warranty card
Posted at
Feb 5, 2025, 1:07 PM
Active
2022 Omega Speedmaster Pro. Moonwatch 42mm 310.30.42.50.01.002 Black Dial

2022 Omega Speedmaster Pro. Moonwatch 42mm 310.30.42.50.01.002 Black Dial

This is a 2022 Omega Speedmaster Professional Moonwatch with a 42mm stainless steel black dial.

  • Condition: Excellent overall condition
  • Size: 8.0 inch wrist (Full Links)
  • Inclusions: Original Double Omega boxed,Box and Papers,International Warranty card dated 2022,5 year manufacturer warranty,Pictograms & Master Chronometer cards,Operating Instructions,Speedmaster Legendary Moonwatch Booklet,Cleaning Cloth
  • Warranty: 5 year manufacturer warranty
Posted at
Feb 5, 2025, 12:25 PM
Active
NEW 2021 Omega Speedmaster Moonwatch "Ed White" 39.7mm 311.30.40.30.01.001 Black

NEW 2021 Omega Speedmaster Moonwatch "Ed White" 39.7mm 311.30.40.30.01.001 Black

Omega - 311.30.40.30.01.001 · $15,000
A new Omega Speedmaster Moonwatch "Ed White" with a black dial, featuring a 39.7mm case size.

  • Condition: Brand New/Unworn
  • Box And Papers: Yes
  • Warranty: 5 year manufacturer warranty
  • Size: 8.0inch wrist (Full Links)
Posted at
Feb 5, 2025, 11:20 AM
Active
2024 Omega Speedmaster Moonwatch Pro. 42mm Stainless Steel White Dial Chrono

2024 Omega Speedmaster Moonwatch Pro. 42mm Stainless Steel White Dial Chrono

The Omega Speedmaster Moonwatch Professional is a stainless steel watch with a white dial and chronograph function, featuring a 42mm case size.

  • Condition: excellent overall condition
  • Case Size: 42mm diameter
Posted at
Feb 5, 2025, 8:50 AM
Active