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 Moonwatch Sapphire - 3861 - 310.30.42.50.01.002 (excellent)

Omega Speedmaster Moonwatch Sapphire - 3861 - 310.30.42.50.01.002 (excellent)

This Omega Speedmaster Moonwatch Professional Sapphire features a 42mm stainless steel case and is powered by the Omega Master Chronometer movement.

  • Condition: Excellent
  • Case size: 42mm diameter
  • Movement: Omega Master Chronometer Movement
Posted at
Feb 12, 2025, 3:25 PM
Active
Omega Speedmaster Day-Date Moonphase White Dial Chronograph 18K/SS 3730.20

Omega Speedmaster Day-Date Moonphase White Dial Chronograph 18K/SS 3730.20

Omega - 3730.20 · $2,860
This Omega Speedmaster Day-Date Moonphase features a white dial and chronograph function, housed in a stainless steel case with an 18K gold accent.

  • Condition: 95%
  • Size: 39mm
  • Case material: Stainless Steel / 18K gold accent
  • Movement type: Mechanical Automatic
Posted at
Feb 12, 2025, 12:01 PM
Active
NIB Omega SPEEDMASTER MOONWATCH APOLLO 8 DARK SIDE OF THE MOON FULL SET

NIB Omega SPEEDMASTER MOONWATCH APOLLO 8 DARK SIDE OF THE MOON FULL SET

2019 Omega Speedmaster Moonwatch Chronograph Dark Side Of The Moon Apollo 8, black ceramic case on leather strap with ceramic tang buckle.

  • Condition: New Old Stock (NIB)
  • Case material: Black Ceramic
  • Strap material: Leather
  • Buckle material: Ceramic
Posted at
Feb 11, 2025, 10:32 PM
Active
2023 Omega Speedmaster �SNOOPY� 50th Anniversary 310.32.42.50.02.001 BOXES/PAPERS!

2023 Omega Speedmaster �SNOOPY� 50th Anniversary 310.32.42.50.02.001 BOXES/PAPERS!

Omega - 310.32.42.50.02.001 · $16,200
2023 Omega Speedmaster �SNOOPY� 50th Anniversary edition timepiece with stainless steel case, coated nylon fabric band, and manual movement.

  • Condition: Excellent, pre-owned with minor surface wear on case and strap
  • Movement Type: Manual
  • Case Diameter: 42mm
  • Water Resistance: 50m
Posted at
Feb 11, 2025, 4:06 PM
Active
Omega Speedmaster Date 1957 Limited Edition �2,009� BOXES/PAPERS/SERVICED!

Omega Speedmaster Date 1957 Limited Edition �2,009� BOXES/PAPERS/SERVICED!

This Limited Edition Speedmaster was produced in just 2,009 pieces specifically for the Japanese market. It comes with outer white box, missing inner red box, manuals, hangtag, service paperwork/parts, and all 3 cards.

  • Condition: pre-owned, nice condition with typical cosmetic wear on the case and bracelet
  • Bezel Type: Fixed with Tachymetric Scale
  • Band Material: Stainless Steel
  • Case Diameter: 40mm
Posted at
Feb 11, 2025, 4:01 PM
Active
NEW 2025 Omega Speedmaster Moonwatch Professional Chronograph 42mm White Dial

NEW 2025 Omega Speedmaster Moonwatch Professional Chronograph 42mm White Dial

This is a new 2025 Omega Speedmaster Moonwatch Professional Chronograph with a 42mm stainless steel case and a white dial.

  • Condition: Brand New/Unworn
  • Box And Papers: Yes
  • Warranty Years: 5
Posted at
Feb 11, 2025, 8:13 AM
Active
OMEGA Speedmaster Dark Side of the Moon 311.92.44.51.01.005 44mm w/BOX & PAPERS

OMEGA Speedmaster Dark Side of the Moon 311.92.44.51.01.005 44mm w/BOX & PAPERS

The OMEGA Speedmaster Dark Side of the Moon is a 44mm watch featuring a black ceramic case, dial, and bezel, with a sapphire crystal and exhibition caseback. It has a chronograph complication and date display at 6:00.

  • Condition: Good preowned condition
  • Case size: 44.25 mm
  • Movement: 9300 Caliber Movement
Posted at
Feb 10, 2025, 2:36 PM
Active
2023 Omega Speedmaster Professional Moonwatch Sapphire 310.30.42.50.01.002

2023 Omega Speedmaster Professional Moonwatch Sapphire 310.30.42.50.01.002

A personal Omega Speedmaster Professional Moonwatch with Sapphire crystal in excellent condition, worn only a few times.

  • Condition: Excellent
  • Year Purchased: 2024
  • Warranty Remaining Years: 3
  • Included Accessories: Outer/Inner Box,Warranty Cards,Booklets/Manual,Links
Posted at
Feb 10, 2025, 10:05 AM
Active
[WTS] Omega Tokyo Olympics 'Yellow Ring' Speedmaster 522.20.42.30.01.001

Omega Tokyo Olympics 'Yellow Ring' Speedmaster 522.20.42.30.01.001

This Omega Speedmaster Tokyo Olympics 'Yellow Ring' features a unique design and is in good condition, with watch and box included.

  • Condition: Good condition all around
  • Shipping: Free shipping within the US, possible options for overseas shipping
Posted at
Feb 10, 2025, 9:42 AM
Active