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

[WTS] Omega Speedmaster Dark Side of the Moon Vintage Black Full Set 311.92.44.51.01.006 - $8,095

Omega Speedmaster Dark Side of the Moon Vintage Black Full Set 311.92.44.51.01.006 - $8,095

Up for sale is a Omega Speedmaster Moonwatch - Dark Side of the Moon - Vintage Black, featuring a 2022 model year and full set contents including box, warranty card, and extra strap.

  • Condition: Excellent condition with minimal signs of wear
  • Year: 2022
  • Contents: [object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
  • Shipping: [object Object]
Posted at
Jun 21, 2025, 10:55 AM
Active
[WTS] Omega Speedmaster Dark Side of the Moon Apollo 8 Full Set 311.92.44.30.01.001 - $7,995

Omega Speedmaster Dark Side of the Moon Apollo 8 Full Set 311.92.44.30.01.001 - $7,995

This Omega Speedmaster Moonwatch - Dark Side of the Moon - Apollo 8 is a well-maintained timepiece from 2019, featuring a robust design and a comprehensive set of accessories.

  • Condition: Excellent condition with no signs of wear
  • Year: 2019
  • Contents: Watch, Inner & Outer Box, International Warranty Card, Pictograms Card, Card Holder, Operating Instructions Manual, Omega Watch Cloth
  • Shipping: Fully insured through Fedex Overnight in the USA
Posted at
Jun 21, 2025, 10:51 AM
Active
Omega Speedmaster Racing Chronograph 44mm Ref - 329.30.44.51.04.001

Omega Speedmaster Racing Chronograph 44mm Ref - 329.30.44.51.04.001

Omega - 329.30.44.51.04.001 · $5,750.006
A 44mm Omega Speedmaster Racing Chronograph in white dial with textured finish and date function.

  • Condition: Good, with outer box damage
  • Size: 44mm diameter
  • Box And Papers: Yes
Posted at
Jun 21, 2025, 9:27 AM
Active
[WTS] Omega Speedmaster Racing Chronograph 44mm Ref - 329.30.44.51.04.001

Omega Speedmaster Racing Chronograph 44mm Ref - 329.30.44.51.04.001

A Omega Speedmaster Racing Chronograph in a larger size with date function and textured dial.

  • Condition: Excellent, some exterior damage to inner box
  • Size: 44mm diameter
  • Case material: not specified
Posted at
Jun 21, 2025, 8:56 AM
Active
Pre-Owned Omega Speedmaster Dark Side of the Moon Apollo 8 311.92.44.30.01.00

Pre-Owned Omega Speedmaster Dark Side of the Moon Apollo 8 311.92.44.30.01.00

Omega - 311.92.44.30.01.00 · $8,399.008
A pre-owned Omega Speedmaster Dark Side of the Moon Apollo 8, a black ceramic watch with a hand-wind movement and 50m water resistance.

  • Condition: 95% condition, faint marks on sides and back of case, strap in 94% condition due to minor wear and creasing
  • Movement: Hand-Wind
  • Case size: 44mm diameter
  • Material: Ceramic
Posted at
Jun 20, 2025, 9:52 PM
Active
[WTS] 2019 Omega Speedmaster 57’ 40.5mm Black Dial 331.10.42.51.01.001

2019 Omega Speedmaster 57’ 40.5mm Black Dial 331.10.42.51.01.001

2019 Omega Speedmaster 57' with a 40.5mm black dial, featuring full links and a double-boxed package.

  • Condition: Excellent Pre-Owned Condition
  • Diameter: 40.5mm
Posted at
Jun 20, 2025, 9:32 PM
Active
[WTS] 2024 Omega Speedmaster Moonwatch Professional Hesalite 310.32.42.50.01.001

2024 Omega Speedmaster Moonwatch Professional Hesalite 310.32.42.50.01.001

2024 Omega Speedmaster Moonwatch Professional with Hesalite crystal, 42mm diameter, and Master Chronometer certification.

  • Condition: Excellent Pre-Owned Condition
  • Case Size: 42mm diameter
Posted at
Jun 20, 2025, 9:27 PM
Active
[WTS] Omega Speedmaster Chronoscope - White Panda Dial - 43mm - 329.30.43.51.02.002 - Full Set

Omega Speedmaster Chronoscope - White Panda Dial - 43mm - 329.30.43.51.02.002 - Full Set

The Omega Speedmaster Chronoscope features a distinctive white panda dial with three timing scales in a 1940's design, including tachymeter, pulsometer, and telemeter scales.

  • Condition: exceptional, mint condition with slight marks on the clasp and case side
  • Diameter: 43mm
Posted at
Jun 20, 2025, 2:19 PM
Active
OCT 2024 Omega Speedmaster racing 9900 44.25mm 329.33.44.51.01.001

OCT 2024 Omega Speedmaster racing 9900 44.25mm 329.33.44.51.01.001

Omega - 329.33.44.51.01.001 · $5,800.006
This Omega Speedmaster racing watch features a 44.25mm case size, is from the factory in October 2024, and has a retail price of $9200 plus tax.

  • Condition: Good condition and full set
  • Case Size: 44.25mm
  • Warranty Date: OCT 2024
  • Retail Price: $9200 plus tax
Posted at
Jun 20, 2025, 11:45 AM
Active