Omega Speedmaster Speedmaster Professional Moonwatch 3861 Sedna Gold - Diamond / Brown / Bracelet

Reference 310.55.42.50.13.001

About this watch

The Omega Speedmaster Professional Moonwatch 3861 Sedna Gold - Diamond / Brown / Bracelet is a masterpiece of horology, blending art, history, and cutting-edge technology. Crafted from Sedna Gold, this watch boasts a unique color that's both warm and striking. Its round shape and sunburst brown finish give it a luxurious feel, while the diamond-set bezel adds a touch of elegance. The 3861 is equipped with a chronograph feature, allowing you to measure elapsed time with precision. At its heart lies the Omega caliber 3861, an updated version of the legendary caliber 861/1861, featuring a co-axial escapement and silicon balance spring for accuracy and reliability. Master Chronometer certified by METAS, this watch has undergone rigorous testing to withstand magnetic fields of up to 15,000 gauss. Its sleek design and exceptional craftsmanship make it a standout in any collection. Whether you're at a formal event or a casual outing, this watch is sure to turn heads.
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Key Features

  • Sedna Gold case
  • Manual-winding chronograph movement
  • Co-axial escapement and silicon balance spring
  • Master Chronometer certified by METAS
  • Diamond-set bezel
  • Water resistance up to 50 meters
  • 42.00 mm diameter and 13.18 mm height

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch 3861 Sedna Gold - Diamond / Brown / Bracelet
Reference
310.55.42.50.13.001
Movement
3861
Movement Features
  • Small Seconds, Hours, Minutes
  • Chronograph
  • Chronometer
Case
Sedna Gold 42mm
Dial Color
Brown
Crystal
Sapphire
Water Resistance
50

Current Listings

Omega Speedmaster Professional Moonwatch 311.33.42.30.01.001

Omega Speedmaster Professional Moonwatch 311.33.42.30.01.001

This listing is for an Omega Speedmaster Professional Moonwatch, a high-end timepiece known for its iconic design and association with space exploration.

  • Condition: Excellent
  • Accessories: boxes, book, velcro strap, nato strap, warranty card
Posted at
Feb 25, 2025, 4:21 PM
Active
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