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

[WTS] 2025 Omega Speedmaster 馃寳 Price Drop!

2025 Omega Speedmaster 馃寳 Price Drop!

Omega - 31030425004001 $74,000
This white dial Omega Speedmaster is in perfect condition, as shown in the pictures.

  • Condition: Immaculate
  • Outer Box: Yes
  • Inner Box: Yes
  • Operating Booklet: Yes
Posted at
Jun 16, 2025, 7:16 PM
Active
Omega Speedmaster - Dark Side of the Moon - 311.92.44.51.01.007 ( new / 2025 )

Omega Speedmaster - Dark Side of the Moon - 311.92.44.51.01.007 ( new / 2025 )

Omega - 311.92.44.51.01.007 $9,450.009
Up for sale is a brand new Omega Speedmaster Moonwatch Dark Side of the Moon / DSOM with Titanium Deployment Clasp, reference # 311.92.44.51.01.007 It comes complete with all boxes, papers, booklets, hang tag and Omega Warranty Card dated April 2025.

  • Condition: Brand New
  • Case material: Ceramic
  • Case size: 44.25mm
  • Movement type: Omega Co-Axial Calibre 9300
Posted at
Jun 16, 2025, 3:32 PM
Active
Omega Speedmaster Moonwatch Professional Co-Axial Master Chronometer Chronograph 42mm 310.30.42.50.04.001

Omega Speedmaster Moonwatch Professional Co-Axial Master Chronometer Chronograph 42mm 310.30.42.50.04.001

Omega - 310.30.42.50.04.001 $8,600.009
This Omega Speedmaster Moonwatch Professional is a modern version of the classic chronograph, featuring a 42mm steel case and a sapphire crystal.

  • Condition: Like New/Unworn
  • Case material: Steel
  • Bracelet material: Steel
  • Crystal material: Sapphire
Posted at
Jun 16, 2025, 3:21 PM
Active
[WTS] Omega Speedmaster X-33 *Full Service 6/25*

Omega Speedmaster X-33 *Full Service 6/25*

Omega - X-33 $2,400
This Omega Speedmaster X-33 is a recent service with a complete overhaul, making it ready to wear and backed by a 2-year warranty from Omega.

  • Condition: pristine condition
  • Service Date: 6/25
  • Warranty Expires: 6/4/2025
Posted at
Jun 16, 2025, 11:26 AM
Active
Omega Speedmaster Tuetonic - Black dial (in UK)

Omega Speedmaster Tuetonic - Black dial (in UK)

Omega - 145.0040 拢1,300.001
This Omega Speedmaster Teutonic features a black dial, manual wind movement, and an integrated bracelet. The watch has a case width of 45mm and a thickness of 12.5mm.

  • Condition: Good condition for age, with some scratches and minor wear
  • Case Width: 45mm
  • Bezel Diameter: 39mm
  • Lug To Lug Width: 46mm
Posted at
Jun 16, 2025, 10:28 AM
Active
[WTS] Omega Speedmaster Moonwatch Professional 311.30.42.30.01.006 - Box & Papers

Omega Speedmaster Moonwatch Professional 311.30.42.30.01.006 - Box & Papers

Omega - 311.30.42.30.01.006 $5,369
The Omega Speedmaster blends iconic style with top-tier performance. Its 42mm stainless steel case and black tachymeter bezel create a bold, timeless look.

  • Condition: great overall condition with minor wear only seen upon close inspection
  • Box Papers: true
  • Movement: 1863 manual-winding movement
  • Case Back Engraving: The First Watch Worn on The Moon
Posted at
Jun 16, 2025, 9:43 AM
Active
[WTS] Omega Speedmaster Apollo 17 45th Anniversary (2-yr warranty) Ref: 311.30.42.30.03.001

Omega Speedmaster Apollo 17 45th Anniversary (2-yr warranty) Ref: 311.30.42.30.03.001

Omega - 311.30.42.30.03.001 $8,200
A rare and exquisite Omega Speedmaster Apollo XVII, a limited edition timepiece that commemorates the 45th anniversary of the final moon landing in 1972. The watch features a polished blue ceramic case, bezel, and dial, as well as 18K yellow gold indexes and hour-minute hands coated in Super-LumiNova.

  • Condition: Very good condition with slight imperfections on the dial
  • Case size: 42mm diameter
  • Water resistance: 50m / 167ft depth rating
  • Movement: OMEGA Calibre 1861, Manual-Winding Chronograph Movement
Posted at
Jun 16, 2025, 9:11 AM
Active
[WTS] Omega Speedmaster 145.022-74 ST Moonwatch

Omega Speedmaster 145.022-74 ST Moonwatch

A vintage, pristine Omega Speedmaster Professional with a Calibre 861 movement, featuring a moonphase complication and a 1171 bracelet.

  • Condition: Vintage Pristine
  • Movement: Calibre 861
  • Bracelet: Omega 1171
  • Crystal: Original
Posted at
Jun 16, 2025, 12:23 AM
Active
Omega Speedmaster Professional 3861 Hesalite Full set

Omega Speedmaster Professional 3861 Hesalite Full set

Omega - 3861 $5,050.005
This Omega Speedmaster Professional is in excellent condition, with a 42mm diameter and Hesalite crystal. It's dated May 2023 and has a screw-in steel caseback.

  • Condition: Very good
  • Case size: 42mm diameter
  • Crystal type: Hesalite
  • Water resistance: 50 meters
Posted at
Jun 15, 2025, 10:12 PM
Active