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

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  • Condition: Excellent pre-owned condition
  • Year: 2025
  • Case size: 43mm diameter
  • Dial material: meteorite
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  • Condition: Pre-owned, unpolished with pusher issues requiring service
  • Pusher service needed: true
  • Original ownership duration: 40 years
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  • Condition: Very Good
  • Year: 2020
  • Power source: Manual-Wind Caliber 1861
  • Warranty period: 2 years
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2024 OMEGA SPEEDMASTER WHITE DIAL FOR SALE Additional Details:

  • Year: 2024
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Mar 15, 2026, 4:38 PM
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[WTS] Omega Speedmaster Professional Hesalite I 310.30.42.50.01.001 | Dated 03/2023 | $5,399

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  • Condition: Preowned, Very Good Condition
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  • Band Material: Stainless Steel
  • Movement Type: Manual Wind, Mechanical
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  • Condition: pre-owned with limited signs of wear
  • Case Size: 40mm diameter
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  • Condition: Excellent
  • Case size: 44.25mm
  • Movement: Automatic
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  • Condition: Excellent Condition
  • Case Material: Steel
  • Bracelet Material: Bracelet
  • Box Papers: Yes
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[WTS] Omega Speedmaster Silver 40 Box Papers

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  • Condition: Pre-Owned with minor scratches
  • Case Material: Steel
  • Bracelet Material: Bracelet
  • Dimensions: 40 mm diameter
Posted at
Mar 15, 2026, 1:05 PM
Active