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

Reference 310.55.42.50.51.001

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

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

[WTS] 2023 OMEGA Speedmaster Anniversary Series Silver Snoopy 310.32.42.50.02.001

2023 OMEGA Speedmaster Anniversary Series Silver Snoopy 310.32.42.50.02.001

OMEGA - 310.32.42.50.02.001 · $15,749
The Omega Speedmaster Snoopy is a tribute to space exploration history, featuring an iconic blue enamel dial with Snoopy as an astronaut and a stunning silver medallion on the case back.

  • Condition: Excellent
  • Case materials: Stainless steel
  • Dial material: Blue enamel
  • Band: Strap and Bracelet included
Posted at
May 6, 2025, 9:33 AM
Active
View listing on r/WatchExchange
[WTS] New 2025 Omega Speedmaster Moonwatch Professional Sapphire Black Dial Full 4/25 Ref: 310.30.42.50.01.002

New 2025 Omega Speedmaster Moonwatch Professional Sapphire Black Dial Full 4/25 Ref: 310.30.42.50.01.002

Omega - 310.30.42.50.01.002 · $6,499
This Omega Speedmaster Moonwatch Professional features a black lacquered dial, manual wind movement, and a 42mm size.

  • Condition: 10/10, unworn with stickers
  • Size: 42mm diameter
  • Water resistance: 50m depth rating
  • Movement: 3861 movement
Posted at
May 6, 2025, 7:47 AM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster racing 326.30.40.50.01.001 w box & papers.

Omega Speedmaster racing 326.30.40.50.01.001 w box & papers.

Omega - 326.30.40.50.01.001 · $3,350
The Omega Speedmaster Racing 326.30.40.50.01.001 is a timepiece that blends iconic design, cutting-edge technology, and everyday versatility.

  • Box: true
  • Papers: true
Posted at
May 6, 2025, 12:10 AM
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[WTS] OMEGA Speedmaster Racing Chronograph 44.25mm Black Dial 329.32.44.51.01.001 Full Set

OMEGA Speedmaster Racing Chronograph 44.25mm Black Dial 329.32.44.51.01.001 Full Set

OMEGA - 329.32.44.51.01.001 · $5,675
This OMEGA Speedmaster Racing Chronograph features a black dial with orange accents, stainless steel case, and automatic mechanical movement.

  • Condition: Very nice preowned condition with light scratches on the case and buckle.
  • Case Material: Stainless Steel
  • Bezel: Stainless Steel
  • Dial: Black with Orange Accents
Posted at
May 5, 2025, 8:13 PM
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Omega Speedmaster Moonwatch Sapphire - 3861 - 310.30.42.50.01.002 (new / 2025)

Omega Speedmaster Moonwatch Sapphire - 3861 - 310.30.42.50.01.002 (new / 2025)

Omega - 310.30.42.50.01.002 · $6,450.006
A brand new Omega Speedmaster Moonwatch Professional Sapphire with Adjustable Clasp, featuring a 42mm stainless steel case and the 3861 Omega Master Chronometer Movement.

  • Condition: Brand New
  • Case size: 42mm diameter
  • Movement: Omega Master Chronometer Movement
Posted at
May 5, 2025, 3:58 PM
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Omega Speedmaster Moonwatch Hesalite - 3861 - 310.30.42.50.01.001 (new / 2025)

Omega Speedmaster Moonwatch Hesalite - 3861 - 310.30.42.50.01.001 (new / 2025)

Omega - 310.30.42.50.01.001 · $5,650.006
This Omega Speedmaster Moonwatch Professional is a brand new timepiece with an Hesalite crystal and adjustable clasp. It features a 42mm stainless steel case and the 3861 Omega Master Chronometer Movement.

  • Condition: Brand new
  • Case size: 42mm diameter
  • Material: stainless steel
  • Movement: Omega Master Chronometer
Posted at
May 5, 2025, 3:56 PM
Active
View listing on WatchUseek
[WTS] NEW 2025 Omega 42mm 310.32.42.50.04.001 Speedmaster Moonwatch Pro - $8,200

NEW 2025 Omega 42mm 310.32.42.50.04.001 Speedmaster Moonwatch Pro - $8,200

Omega - 310.32.42.50.04.001 · $8,200
A brand new 2025 Omega Speedmaster Moonwatch Pro with a stainless steel white dial, measuring 42mm in size and featuring an adjustable rubber strap.

  • Condition: NEW/UNWORN
  • Material: Stainless Steel
  • Size: 42mm diameter
  • Strap: Adjustable Rubber Strap with Deployment Clasp
Posted at
May 5, 2025, 2:52 PM
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Omega Speedmaster Date Olympic Chronograph White Dial 3515.20

Omega Speedmaster Date Olympic Chronograph White Dial 3515.20

Omega - 3515.20 · $2,080.002
This Omega Speedmaster Date Olympic Chronograph features a white dial and is powered by a mechanical automatic movement.

  • Condition: 95%
  • Size: 39mm diameter
  • Case material: Stainless Steel
Posted at
May 5, 2025, 11:51 AM
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[WTS] Omega SPEEDMASTER PROFESSIONAL MOONWATCH WHITE DIAL 2024 WARRANTY FULL SET $7425

Omega SPEEDMASTER PROFESSIONAL MOONWATCH WHITE DIAL 2024 WARRANTY FULL SET $7425

Omega - Speedmaster Professional Moonwatch · $7,425
A new 2024 Omega Speedmaster Professional Moonwatch in stainless steel with a white dial and sapphire crystals. The watch features a manual-winding chronograph movement with a co-axial escapement.

  • Condition: Excellent, unpolished
  • Case size: 42mm diameter
  • Movement: 3861 Co-Axial Escapement
Posted at
May 5, 2025, 11:35 AM
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