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 Racing - White Dial - 329.30.44.51.04.001 ( excellent )

Omega Speedmaster Racing - White Dial - 329.30.44.51.04.001 ( excellent )

This Omega Speedmaster Racing Master Co-Axial in White Dial is a high-end chronograph watch with a stainless steel case and Master Co-Axial movement.

  • Condition: Excellent
  • Case size: 44.25mm diameter
  • Movement: Master Co-Axial 9900 Chronometer
Posted at
Feb 25, 2025, 3:15 PM
Active
>>reduced further<< vintage omega speedmaster professional pre-moon 145.022-69

>>reduced further<< vintage omega speedmaster professional pre-moon 145.022-69

Omega - 145.022-69ST · $3,550
This is a pre-moon Omega Speedmaster Professional reference 145.022-69ST, featuring an Omega calibre 861 movement with a 29 million serial number from 1970. The watch has been overhauled in 2022 and comes on a generic tan strap.

  • Condition: Good vintage condition
  • Calibre: Omega calibre 861
  • Movement condition: Overhauled in 2022
  • Case diameter: 42 mm
Posted at
Feb 25, 2025, 2:49 PM
Active
310.32.42.50.02.001 Omega Speedmaster Silver Snoopy COMPLETE SET/BRAND NEW

310.32.42.50.02.001 Omega Speedmaster Silver Snoopy COMPLETE SET/BRAND NEW

Omega - 310.32.42.50.02.001 · $15,900
The Omega Speedmaster Silver Snoopy is a complete set in brand new condition, including the OEM bracelet.

  • Condition: Brand new/unworn
  • Bracelet Type: OEM Speedmaster Bracelet
Posted at
Feb 24, 2025, 7:03 PM
Active
Omega Speedmaster Professional Moonwatch CK2998 White Steel LIMITED

Omega Speedmaster Professional Moonwatch CK2998 White Steel LIMITED

Omega - CK2998 · $7,299
The Omega Speedmaster Professional Moonwatch is a limited edition model with a silver manual winding movement and a stainless steel case. It features a tachymetre bezel, sapphire crystal, and an Omega black leather band.

  • Condition: Excellent
  • Case material: Stainless Steel
  • Case dimensions: 39.7mm diameter
  • Dial color: Silver
Posted at
Feb 23, 2025, 3:38 PM
Active
Omega Speedmaster Professional Moonphase

Omega Speedmaster Professional Moonphase

Omega - 3575.20 · $5,450
Up for sale is an Omega Speedmaster Professional Moonphase reference 3575.20, featuring date, chronograph, tachymeter and moonphase functions. The watch has a 42mm case with 18k white gold bezel and 1866 manual wind movement.

  • Condition: excellent
  • Case Diameter: 42mm
  • Movement Type: manual wind
  • Bezel Material: 18k white gold
Posted at
Feb 21, 2025, 4:49 PM
Active
Omega Speedmaster Dark Side of the Moon "Apollo 8" 44.25MM 311.92.44.30.01.001

Omega Speedmaster Dark Side of the Moon "Apollo 8" 44.25MM 311.92.44.30.01.001

The Omega Speedmaster Dark Side of the Moon features a super lightweight ceramic case, an insane skeleton dial with a laser-etched lunar surface, and a hand-wound 1869 movement.

  • Condition: Excellent Condition
  • Case material: ceramic
  • Dial type: skeleton
  • Movement type: hand-wound
Posted at
Feb 20, 2025, 8:11 PM
Active
2022 Omega Speedmaster Professional Moonwatch 310.30.42.50.01.002 Sapphire

2022 Omega Speedmaster Professional Moonwatch 310.30.42.50.01.002 Sapphire

A 2022 Omega Speedmaster Professional Moonwatch in like new condition, described by the seller as worse than it really is.

  • Condition: Like new
  • Material: Sapphire crystal
Posted at
Feb 19, 2025, 11:06 PM
Active
BNIB Omega SPEEDMASTER SILVER SNOOPY AWARD 50TH ANNIVERSARY 2025 FULL SET

BNIB Omega SPEEDMASTER SILVER SNOOPY AWARD 50TH ANNIVERSARY 2025 FULL SET

A 2025 Omega Speedmaster Professional Moonwatch, specifically the Silver Snoopy Award edition, featuring a 42mm stainless steel case and silver dial with blue subdials. This watch is part of the 50th Anniversary celebration and comes with a full set of accessories and documentation.

  • Condition: Brand New in Box (BNIB)
  • Case Size: 42mm
  • Movement:
  • Water Resistance:
Posted at
Feb 19, 2025, 10:15 PM
Active