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

Reference 310.55.42.50.13.001

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

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

Pre-Owned Omega Speedmaster Pilot 332.10.41.51.01.002

Pre-Owned Omega Speedmaster Pilot 332.10.41.51.01.002

Omega - 332.10.41.51.01.002 · $9,299.009
This pre-owned Omega Speedmaster Pilot watch features a stainless steel case size of 41mm, automatic movement, black dial, water resistance of 100 meters, and comes with its inner and outer box, instruction manual, warranty card, pictogram card, master chronometer card, hangtag, and the one-year Topper Pre-Owned Select warranty.

  • Condition: 96% condition, with faint marks on the sides and back of the case, 93% bracelet condition due to slight marks on the links and clasp, 97% OEM strap condition due to minor wear
  • Case size: 41mm
  • Material: Stainless Steel
  • Dial color: Black
Posted at
Jun 15, 2025, 3:58 PM
Active
View listing on WatchUseek
[WTS] Omega Speedmaster. 38mm, Ceramic Bezel. Sharp Dial. Strong Lume, OEM strap + Clasp.

Omega Speedmaster. 38mm, Ceramic Bezel. Sharp Dial. Strong Lume, OEM strap + Clasp.

Omega - Speedmaster · $2,750
A 38mm Omega Speedmaster with a fire dial and strong lume, featuring a ceramic bezel and OEM strap.

  • Case size: 38mm
  • Bezel material: Ceramic
  • Band type: OEM strap
Posted at
Jun 15, 2025, 3:48 PM
Active
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[WTS] 2024 Omega Speedmaster Sapphire 3861 Professional Moonwatch- Full Set

2024 Omega Speedmaster Sapphire 3861 Professional Moonwatch- Full Set

Omega - 3861 · $5,749
This is a 2024 Omega Speedmaster Professional Moonwatch Sapphire Sandwich, purchased in February from Matthew Bain's eBay store and still under warranty.

  • Condition: Excellent
  • Year Of Production: 2024
  • Purchase History: Originally purchased from Topper Jewelry in Burlingame, CA on 08-23-2024; previously owned by the seller who purchased it from Matthew Bain's eBay store (wirelug) in February
Posted at
Jun 15, 2025, 3:43 PM
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View listing on r/WatchExchange
[WTS] Omega Speedmaster Moonwatch Exhibition Back 3592.50 Apollo XI Watch

Omega Speedmaster Moonwatch Exhibition Back 3592.50 Apollo XI Watch

Omega - 3592.5 · $4,100
This is an Omega Speedmaster Moonwatch Exhibition Back 3592.50, a pre-owned watch from 1992 with light signs of wear and scratches on the sapphire caseback.

  • Condition: Good (Light Signs of Wear)
  • Case Width: 42mm
  • Year: 1992
Posted at
Jun 15, 2025, 1:51 PM
Active
View listing on r/WatchExchange
Pre-Owned Omega Speedmaster Pilot 332.10.41.51.01.002

Pre-Owned Omega Speedmaster Pilot 332.10.41.51.01.002

Omega - 332.10.41.51.01.002 · $9,299.009
Pre-owned Omega Speedmaster Pilot with automatic movement, 41mm stainless steel case, black dial, and 100m water resistance. Comes with original box, papers, and one-year warranty.

  • Condition: 96% (minor marks on case and back, slight marks on links and clasp)
  • Movement: Automatic
  • Case size: 41mm diameter
  • Material: Stainless Steel
Posted at
Jun 14, 2025, 8:32 PM
Active
View listing on WatchUseek
[WTS] Omega Speedmaster Professional Moonwatch 42mm 311.30.42.30.01.005 FULL SET 2019

Omega Speedmaster Professional Moonwatch 42mm 311.30.42.30.01.005 FULL SET 2019

Omega - 311.30.42.30.01.005 · $4,399
A 2019 Omega Speedmaster Professional Moonwatch with a 42mm case size and full set, including original receipt.

  • Condition: Unused, rarely worn
  • Year Of Manufacture: 2019
  • Size: 42mm
Posted at
Jun 14, 2025, 5:09 PM
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[WTS] Omega Speedmaster Broad Arrow - Ref. 3594.50 - Excellent Condition

Omega Speedmaster Broad Arrow - Ref. 3594.50 - Excellent Condition

Omega - 3594.50 · $3,599
Up for grabs today is an Omega Speedmaster '57 Broad Arrow that is in excellent condition.

  • Condition: Excellent
  • Bracelet size: 7.5 inch wrist diameter
  • Bracelet type: 1998/840 updated bracelet
Posted at
Jun 14, 2025, 4:36 PM
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[WTS] Omega Speedmaster Broad Arrow *RARE* Silver Dial | Inner and Out Box, International Warranty Card, Pictogram, Hang Tag, Manual | $3700 + Label | Watch is in great condition and functional

Omega Speedmaster Broad Arrow *RARE* Silver Dial | Inner and Out Box, International Warranty Card, Pictogram, Hang Tag, Manual | $3700 + Label | Watch is in great condition and functional

Omega - Broad Arrow · $3,700
The Omega Speedmaster Broad Arrow features a silver dial, comes with inner and out box, international warranty card, pictogram, hang tag, and manual.

  • Condition: great condition and functional
  • Box: inner and outer boxes
  • Papers: international warranty card, hang tag, and manual
Posted at
Jun 14, 2025, 4:09 PM
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[WTS] Omega Speedmaster Dark Side of the Moon Vintage Black Full Set 311.92.44.51.01.006 - $8,095

Omega Speedmaster Dark Side of the Moon Vintage Black Full Set 311.92.44.51.01.006 - $8,095

Omega - 311.92.44.51.01.006 · $8,095
Up for sale is a Omega Speedmaster Moonwatch - Dark Side of the Moon - Vintage, with features such as a new brown strap and a thorough timegrapher test.

  • Condition: Excellent condition with minimal signs of wear
  • Year: 2022
  • Contents: Watch, Inner & Outer Box, International Warranty Card, Pictograms Card, Card Holder, Operating Instructions Manual, Extra Brown Strap
Posted at
Jun 14, 2025, 1:26 PM
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View listing on r/WatchExchange