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

[wts] Omega Speedmaster racing 9900 44.25mm 329.33.44.51.01.001 under warranty

Omega Speedmaster racing 9900 44.25mm 329.33.44.51.01.001 under warranty

Omega - 329.33.44.51.01.001 · $5,800
This Omega Speedmaster racing watch features a 44.25mm case size, under warranty until OCT 2024, and is available with various references.

  • Condition: Good condition
  • Warranty Status: Factory warranty under warranty until OCT 2024
  • Shipping Method: FedEx
Posted at
Jun 15, 2025, 9:34 PM
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[WTS] Omega Speedmaster Moonwatch Professional Sapphire White Dial, Complete Set

Omega Speedmaster Moonwatch Professional Sapphire White Dial, Complete Set

Omega - 310.30.42.50.04.001 · $7,350
A Omega Speedmaster Moonwatch Professional Sapphire White Dial, part of a complete set including various documentation and accessories.

  • Condition: Excellent Pre-Owned Condition with little to no signs of wear
  • Warranty Valid Until: 2029
  • Case Size: 42mm diameter
  • Bezel Type: Tachymetre Bezel
Posted at
Jun 15, 2025, 9:02 PM
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[wts] MINT JAN 2025 Omega Speedmaster racing 9900 44.25mm 329.30.44.51.01.001

MINT JAN 2025 Omega Speedmaster racing 9900 44.25mm 329.30.44.51.01.001

Omega - 329.30.44.51.01.001 · $5,900
A 2025 Omega Speedmaster racing watch in pristine condition, with a 44.25mm case and original warranty. The watch is described as really clean and comes with all accessories.

  • Condition: Mint
  • Case diameter: 44.25mm
  • Warranty: JAN 2025
Posted at
Jun 15, 2025, 8:03 PM
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[WTS] Omega Speedmaster Dark Side of the Moon Pitch Black 311.92.44.51.01.004 - Full Set - Super LumiNova

Omega Speedmaster Dark Side of the Moon Pitch Black 311.92.44.51.01.004 - Full Set - Super LumiNova

Omega - 311.92.44.51.01.004 · $8,000
The Omega Speedmaster Dark Side of the Moon 'Pitch Black' features an all-black design, blackened central hands, and Super LumiNova indices and tachymeter scale. The manual-wound cal. 9300 movement is visible through the open case back.

  • Condition: Very mint condition, some wear on strap due to clasp design
  • Movement: Manual-wound cal. 9300
  • Case material: Ceramic
  • Warranty card date: 02/2016
Posted at
Jun 15, 2025, 7:58 PM
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[WTS] Omega Speedmaster Broad Arrow 3594.50 – Full set – Excellent condition [Europe/Switzerland]

Omega Speedmaster Broad Arrow 3594.50 – Full set – Excellent condition [Europe/Switzerland]

Omega - 3594.50 · $3,999
This Omega Speedmaster Broad Arrow is a unique watch with excellent condition and comes with a full set, including box and papers.

  • Condition: Excellent condition
  • Shipping cost exclusion: true
  • Carrier selection based on buyer location: true
  • Bracelet condition: Excellent
Posted at
Jun 15, 2025, 7:03 PM
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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
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[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
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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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[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
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