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.
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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 Moonwatch 42mm 310.30.42.50.01.001 Steel Black Dial

2021 Omega Speedmaster Moonwatch 42mm 310.30.42.50.01.001 Steel Black Dial

This is a 2021 Omega Speedmaster Moonwatch 42mm watch with a stainless steel black dial and Hesalite crystal.

  • Condition: Excellent overall condition
  • Original boxed: true
  • Papers included: true
  • Warranty card date: 2021
Posted at
Feb 13, 2025, 11:40 AM
Active
Omega SPEEDMASTER PROFESSIONAL MOONWATCH WHITE DIAL 2024 WARRANTY FULL SET

Omega SPEEDMASTER PROFESSIONAL MOONWATCH WHITE DIAL 2024 WARRANTY FULL SET

This is a new 2024 Omega Speedmaster Professional Moonwatch with a stainless steel case and white dial. It features a manual-winding chronograph movement with co-axial escapement.

  • Condition: Excellent, unpolished condition
  • Movement: 3861, manual-winding chronograph
  • Case size: 42mm diameter
  • Crystals: Sapphire crystals
Posted at
Feb 12, 2025, 10:06 PM
Active
Omega Speedmaster Snoopy 11/2024 Brand New

Omega Speedmaster Snoopy 11/2024 Brand New

Omega - Speedmaster Snoopy · $14,850
This Omega Speedmaster Snoopy is a brand new watch, released in November 2024. It features the iconic Snoopy design and comes with all original packaging and documentation.

  • Condition: New
  • Status: Brand New
  • Year Of Release: 2024
Posted at
Feb 12, 2025, 9:09 PM
Active
Omega Speedmaster Moonwatch 3861 - White - 310.30.42.50.04.001 ( excellent )

Omega Speedmaster Moonwatch 3861 - White - 310.30.42.50.04.001 ( excellent )

This listing is for an Omega Speedmaster Moonwatch Professional White Dial Sapphire on Bracelet, a high-end watch with a stainless steel case and Master Chronometer movement.

  • Condition: Excellent
  • Case size: 42mm
  • Movement: Master Chronometer Movement
Posted at
Feb 12, 2025, 3:27 PM
Active
Omega Speedmaster Moonwatch Sapphire - 3861 - 310.30.42.50.01.002 (excellent)

Omega Speedmaster Moonwatch Sapphire - 3861 - 310.30.42.50.01.002 (excellent)

This Omega Speedmaster Moonwatch Professional Sapphire features a 42mm stainless steel case and is powered by the Omega Master Chronometer movement.

  • Condition: Excellent
  • Case size: 42mm diameter
  • Movement: Omega Master Chronometer Movement
Posted at
Feb 12, 2025, 3:25 PM
Active
Omega Speedmaster Day-Date Moonphase White Dial Chronograph 18K/SS 3730.20

Omega Speedmaster Day-Date Moonphase White Dial Chronograph 18K/SS 3730.20

Omega - 3730.20 · $2,860
This Omega Speedmaster Day-Date Moonphase features a white dial and chronograph function, housed in a stainless steel case with an 18K gold accent.

  • Condition: 95%
  • Size: 39mm
  • Case material: Stainless Steel / 18K gold accent
  • Movement type: Mechanical Automatic
Posted at
Feb 12, 2025, 12:01 PM
Active
NIB Omega SPEEDMASTER MOONWATCH APOLLO 8 DARK SIDE OF THE MOON FULL SET

NIB Omega SPEEDMASTER MOONWATCH APOLLO 8 DARK SIDE OF THE MOON FULL SET

2019 Omega Speedmaster Moonwatch Chronograph Dark Side Of The Moon Apollo 8, black ceramic case on leather strap with ceramic tang buckle.

  • Condition: New Old Stock (NIB)
  • Case material: Black Ceramic
  • Strap material: Leather
  • Buckle material: Ceramic
Posted at
Feb 11, 2025, 10:32 PM
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2023 Omega Speedmaster �SNOOPY� 50th Anniversary 310.32.42.50.02.001 BOXES/PAPERS!

2023 Omega Speedmaster �SNOOPY� 50th Anniversary 310.32.42.50.02.001 BOXES/PAPERS!

Omega - 310.32.42.50.02.001 · $16,200
2023 Omega Speedmaster �SNOOPY� 50th Anniversary edition timepiece with stainless steel case, coated nylon fabric band, and manual movement.

  • Condition: Excellent, pre-owned with minor surface wear on case and strap
  • Movement Type: Manual
  • Case Diameter: 42mm
  • Water Resistance: 50m
Posted at
Feb 11, 2025, 4:06 PM
Active
Omega Speedmaster Date 1957 Limited Edition �2,009� BOXES/PAPERS/SERVICED!

Omega Speedmaster Date 1957 Limited Edition �2,009� BOXES/PAPERS/SERVICED!

This Limited Edition Speedmaster was produced in just 2,009 pieces specifically for the Japanese market. It comes with outer white box, missing inner red box, manuals, hangtag, service paperwork/parts, and all 3 cards.

  • Condition: pre-owned, nice condition with typical cosmetic wear on the case and bracelet
  • Bezel Type: Fixed with Tachymetric Scale
  • Band Material: Stainless Steel
  • Case Diameter: 40mm
Posted at
Feb 11, 2025, 4:01 PM
Active