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

1967 Omega Speedmaster 105.012-66CB

1967 Omega Speedmaster 105.012-66CB

Omega - 105.012-66CB · $16,350
This Omega Speedmaster Professional 105.012-66CB is a 1967 model that has been serviced and refinished in 2023, with expertly refinished Central Boites case and excellent condition stepped dial.

  • Condition: pristine condition
  • Case material: Central Boites
  • Dial color: black with touch of grey
  • Lume patina: pale yellow
Posted at
Mar 9, 2025, 8:14 PM
Active
2004 Omega Speedmaster 1957 Reissue From Japan EXTRAS Ref. 3594.50

2004 Omega Speedmaster 1957 Reissue From Japan EXTRAS Ref. 3594.50

Omega - 3594.50 · $4,995
2004 Omega Speedmaster 1957 Reissue From Japan EXTRAS, comes with two bracelets and a custom unmarked caseback to exhibit the 1861 movement.

  • Condition: Excellent
  • Bracelets: 2 (original and Apollo 11 50th Anniversary flat link)
  • Caseback: custom unmarked
  • Movement: 1861
Posted at
Mar 8, 2025, 2:27 PM
Active
Omega Speedmaster Moonwatch Professional 310.60.42.50.10 Yellow Gold Green Dial

Omega Speedmaster Moonwatch Professional 310.60.42.50.10 Yellow Gold Green Dial

Omega - 310.60.42.50.10.001 · $29,950
This is a 42mm Omega Speedmaster Moonwatch with a Yellow Gold case, bracelet, and Ceramic bezel featuring a Green Dial.

  • Condition: Unworn Excellent Condition
  • Case Size: 42mm
  • Material: Yellow Gold
  • Bezel Type: Ceramic
Posted at
Mar 7, 2025, 10:24 AM
Active
Omega Speedmaster Schumacher Red Dial Chronograph Automatic 3510.61

Omega Speedmaster Schumacher Red Dial Chronograph Automatic 3510.61

Omega - 3510.61 · $2,730
The Omega Speedmaster Schumacher Red Dial Chronograph Automatic is a mechanical watch with a chronograph function, housed in a stainless steel case with a 38mm diameter.

  • Condition: 90%
  • Size: 38mm diameter
  • Case material: Stainless Steel
Posted at
Mar 7, 2025, 10:22 AM
Active
Omega Speedmaster - Sedna Gold FOIS - 311.63.40.30.02.001 ( excellent )

Omega Speedmaster - Sedna Gold FOIS - 311.63.40.30.02.001 ( excellent )

Omega - 311.63.40.30.02.001 · $11,950
This Omega Speedmaster Moonwatch First Omega In Space ( FOIS ) Numbered Edition is a Sedna Gold 39.7mm Panda Dial on Leather Strap, complete with all boxes, papers, booklets, hang tag and Omega Warranty Card dated March 2019.

  • Condition: excellent condition
  • Case Size: 39.7mm
  • Calibre: Omega 1861
  • Movement Type: mechanical
Posted at
Mar 6, 2025, 3:45 PM
Active
2024 Omega Speedmaster 44.25mm 311.92.44.51.01.006 Dark Side of the Moon

2024 Omega Speedmaster 44.25mm 311.92.44.51.01.006 Dark Side of the Moon

The Omega Speedmaster Dark Side of the Moon is a ceramic black dial watch with a 44.25mm case size, featuring an adjustable leather strap and foldover clasp.

  • Condition: Excellent overall condition
  • Case Size: 44.25mm
Posted at
Mar 6, 2025, 8:58 AM
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 )

Up for sale is an excellent condition Omega Speedmaster Moonwatch Professional White Dial Sapphire on Bracelet, reference # 310.30.42.50.04.001 It comes with all boxes, papers, booklets, and Omega Warranty Card dated August 2024.

  • Condition: Excellent
  • Case Size: 42mm
  • Material: Stainless Steel
Posted at
Mar 5, 2025, 3:49 PM
Active
Omega Speedmaster Racing - 44.25mm - Orange - 329.32.44.51.01.001 (excellent)

Omega Speedmaster Racing - 44.25mm - Orange - 329.32.44.51.01.001 (excellent)

A black and orange dial Omega Speedmaster Racing in excellent condition, complete with all original boxes, papers, and warranty card.

  • Condition: Excellent
  • Case Size: 44.25mm
  • Movement Type: Master Co-Axial 9900 Chronometer
Posted at
Mar 5, 2025, 3:49 PM
Active