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 Snoopy Speedmaster 310.32.42.50.02.001

Omega Snoopy Speedmaster 310.32.42.50.02.001

Omega - 310.32.42.50.02.001 · $15,250
This Omega Silver Snoopy Speedmaster is a brand-new Ref 310.32.42.50.02.001, complete with accessories.

  • Condition: Brand new
  • Box: double box
  • Accessories: includes loupe, special booklet, regular booklet, serial tag, 3 cards with warranty stamped and dated 2/26/2025
Posted at
Mar 25, 2025, 3:47 PM
Active
Omega Speedmaster Moonwatch Moonshine!

Omega Speedmaster Moonwatch Moonshine!

Omega - 310.60.42.50.10.001 · $25,000
Omega Speedmaster Moonwatch Professional in Moonshine Gold, 42mm case size.

  • Condition: Great condition with very light wear
  • Case Size: 42 mm
  • Box Contents: Big box, special booklet, regular booklet, full links, warranty card
Posted at
Mar 25, 2025, 3:36 PM
Active
Omega Speedmaster Moon Chrono 311.30.42.30.01.005, 42 mm, Hesalite, Complete 2021

Omega Speedmaster Moon Chrono 311.30.42.30.01.005, 42 mm, Hesalite, Complete 2021

This Omega Speedmaster Moon Chrono is a manual-winding chronograph movement with Rhodium-plated finish, featuring a black dial and 48 hours power reserve. It has a stainless steel case and bracelet with deployment buckle.

  • Condition: Near mint condition
  • Case diameter: 42 mm
  • Between lugs: 20 mm
  • Thickness: 13.8 mm
Posted at
Mar 25, 2025, 2:26 AM
Active
Omega Speedmaster Moonwatch Two Counters 311.33.44.51.01.001 Like New

Omega Speedmaster Moonwatch Two Counters 311.33.44.51.01.001 Like New

This Omega Speedmaster Moonwatch Two Counter is in pristine condition, with a new-feeling strap and included accessories such as the full box set, pictogram card, and serialized hang tag.

  • Condition: Like new
  • Box set included: true
  • Strap included: false
Posted at
Mar 20, 2025, 2:17 PM
Active
Omega Speedmaster Automatic Chronograph Date 3813.53

Omega Speedmaster Automatic Chronograph Date 3813.53

Omega - 3813.53.26 · $1,690
This Omega Speedmaster Automatic Chronograph Date is a stainless steel watch with a mechanical automatic movement.

  • Condition: 85%
  • Model: Speedmaster Automatic Chronograph Date
  • Size: 39mm diameter
  • Functions: Chronograph,Date
Posted at
Mar 20, 2025, 10:13 AM
Active
Omega FOIS Speedmaster Moonwatch B+P Warranty

Omega FOIS Speedmaster Moonwatch B+P Warranty

This Omega Speedmaster Moonwatch is a First Omega In Space (FOIS) edition with a blue-grey dial and black anodized aluminum bezel. It features a stainless steel case and brush-polished outer link bracelet.

  • Condition: Near Mint, 96%
  • Case size: 39.7mm
  • Movement: 3861 manual winding
  • Power reserve: 50 hours
Posted at
Mar 18, 2025, 12:46 AM
Active
Omega Speedmaster Moonwatch "Sapphire Sandwich" - 310.30.42.50.01.002 - EXC

Omega Speedmaster Moonwatch "Sapphire Sandwich" - 310.30.42.50.01.002 - EXC

This Omega Speedmaster Moonwatch features a 42mm stainless steel case and black dial. It is powered by a manual winding movement and comes with various accessories, including an Omega box set and instruction manual.

  • Condition: Pre-Owned Excellent
  • Case Size: 42mm
  • Bracelet Type: Stainless Steel
  • Movement: Manual Winding
Posted at
Mar 18, 2025, 12:39 AM
Active
2000 Omega Speedmaster 'Reduced' Ref. 3510.50

2000 Omega Speedmaster 'Reduced' Ref. 3510.50

Omega - 3510.50 · $2,300
The Omega Speedmaster 'Reduced' Ref. 3510.50 is a great entry into the Omega family, measuring at 39mm with a good condition bracelet, case, and bezel.

  • Condition: Excellent(little to no wear)
  • Year: 2000
  • Movement: Automatic
  • Case width: 39mm diameter
Posted at
Mar 17, 2025, 2:47 PM
Active

2022 Omega Speedmaster Moonwatch Professional Hesalite 42mm 310.30.42.50.01.001

A 2022 Omega Speedmaster Moonwatch Professional Hesalite 42mm, the first watch worn on the moon.

  • Condition: Excellent Pre-owned condition
  • Box And Paper: Complete set comes with inner & outer boxes, Warranty Card, Pictogram, Master Chronometer, instruction booklet and black travel case
  • Accessories: original sticker, cleaning cloth and Moonwatch Booklet
Posted at
Mar 11, 2025, 3:18 PM
Active