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

Omega Speedmaster Professional Moonwatch 311.33.42.30.01.001

Omega Speedmaster Professional Moonwatch 311.33.42.30.01.001

This Omega Speedmaster Professional Moonwatch comes in excellent condition and includes various accessories such as boxes, book, velcro strap, nato strap, and warranty card.

  • Condition: Excellent condition
  • Shipping: yes
Posted at
Mar 5, 2025, 3:27 PM
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Omega Speedmaster Professional Tokyo 2020 522.30.42.30.03.001

Omega Speedmaster Professional Tokyo 2020 522.30.42.30.03.001

A 2020 Omega Speedmaster Professional edition, featuring a distinctive design and high-quality materials. This watch comes with its original boxes and books, but note that the warranty card is missing.

  • Condition: Excellent condition
  • Boxes: 1
  • Books: 1
Posted at
Mar 5, 2025, 3:26 PM
Active
�Reduced Price� OMEGA Speedmaster Racing 329.32.44.51.06.001

�Reduced Price� OMEGA Speedmaster Racing 329.32.44.51.06.001

The OMEGA Speedmaster Racing features a striking design with a bold black dial and orange accents, built for the discerning watch enthusiast.

  • Condition: Excellent, lightly worn
  • Movement: Caliber 9900 Certified chronometer
  • Case size: 44.25mm diameter
  • Water resistance: 50m depth rating
Posted at
Mar 5, 2025, 12:44 PM
Active
NEW Omega Apollo 8 Speedmaster Dark Side of the Moon Rocket Second Hand 2024

NEW Omega Apollo 8 Speedmaster Dark Side of the Moon Rocket Second Hand 2024

Omega - 310.92.44.50.01.001 · $11,250
A new Omega Speedmaster Apollo 8 Dark Side of the Moon, featuring a 44.25mm ceramic case and manual winding caliber 3869 with skeletonised movement.

  • Condition: Brand New
  • Case material: ceramic
  • Case size: 44.25mm diameter
Posted at
Mar 5, 2025, 12:13 PM
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Omega Speedmaster Moonwatch - 310.30.42.50.04.001 - White - Steel - 42mm - LNIB

Omega Speedmaster Moonwatch - 310.30.42.50.04.001 - White - Steel - 42mm - LNIB

Omega Speedmaster Moonwatch 'Professional' in white, stainless steel case with manual winding movement.

  • Condition: Pre-Owned Like New
  • Case size: 42mm
  • Bracelet type: Stainless Steel
  • Dial color: White
Posted at
Mar 4, 2025, 9:43 PM
Active
2012 Omega Speedmaster 'Reduced' Ref. 3539.50 with Box & Papers

2012 Omega Speedmaster 'Reduced' Ref. 3539.50 with Box & Papers

Omega - 3539.50 · $3,950
The Omega Speedmaster Reduced Automatic is a great entry into Omega, featuring a scratch-resistant sapphire crystal and fold-over clasp. This super luminova example is in excellent pre-owned condition with no major flaws to note.

  • Condition: Excellent
  • Movement: Automatic
  • Case width: 39mm diameter
  • Strap length: 7.50"
Posted at
Mar 4, 2025, 1:16 PM
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Omega SPEEDMASTER SILVER SNOOPY AWARD 50TH ANNIVERSARY EXTRA 3861 BRACELET 2025

Omega SPEEDMASTER SILVER SNOOPY AWARD 50TH ANNIVERSARY EXTRA 3861 BRACELET 2025

This 2025 Omega Speedmaster Professional Moonwatch is a 50th Anniversary Silver Snoopy Award model with a silver dial and blue subdials. It comes with a stainless steel case on a new blue fabric strap and a steel tang buckle.

  • Condition: Mint, Unpolished Condition
  • Case Size: 42mm
  • Bracelet Type: Omega 3861 Speedmaster PCL Bracelet (extra)
  • Warranty Left: Under 5 years factory warranty
Posted at
Mar 3, 2025, 7:17 PM
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2023 Omega Speedmaster 31030425001001 � Box + Papers + extra Nato

2023 Omega Speedmaster 31030425001001 � Box + Papers + extra Nato

Omega - 31030425001001 · $5,470
The Omega Speedmaster reference 31030425001001 is an iconic timepiece that balances heritage and sophistication. Its classic black dial exudes confidence and beauty, paired with a sleek stainless steel bracelet for versatility.

  • Condition: Attractive condition with light signs of wear, as expected from a watch worn a handful of times
  • Case Size: 42mm diameter
  • Movement Type: Original Omega Automatic movement
  • Bracelet Fit: 7.9 inch wrist
Posted at
Mar 3, 2025, 5:43 PM
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2020 Omega Speedmaster Ref: 522.30.42.30.03.001 Tokyo 2020 Olympics with B+P

2020 Omega Speedmaster Ref: 522.30.42.30.03.001 Tokyo 2020 Olympics with B+P

2020 Omega Speedmaster Ref: 522.30.42.30.03.001, a limited edition watch from the Tokyo 2020 Olympics collection.

  • Condition: Excellent
  • Case size: 42mm
  • Limited edition number: 16X/2020
Posted at
Mar 3, 2025, 5:35 PM
Active