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 CK2998 - Blue - 311.33.40.30.02.001 ( excellent )

Omega Speedmaster CK2998 - Blue - 311.33.40.30.02.001 ( excellent )

Omega - 311.33.40.30.02.001 · $7,450.007
This Omega Speedmaster Limited Edition CK2998 features a Blue Panda Dial and Strap, with a stainless steel case measuring 39.7mm in diameter.

  • Condition: Excellent Condition
  • Case Size: 39.7mm diameter
  • Movement: Omega Calibre 1861
Posted at
Apr 24, 2025, 3:19 PM
Active
[WTS] 2012 Omega Speedmaster 'Reduced' Ref. 3539.50 with Box & Papers

2012 Omega Speedmaster 'Reduced' Ref. 3539.50 with Box & Papers

Omega - 3539.50 · $3,950
A 39mm Omega Speedmaster Reduced Automatic, featuring a scratch-resistant sapphire crystal and an upgraded fold-over clasp, in excellent pre-owned condition with super luminova dial and hands.

  • Condition: Excellent (little to no signs of wear)
  • Case width: 39mm
  • Movement: Automatic
  • Strap length: 7.50 inches
Posted at
Apr 24, 2025, 1:08 PM
Active
[WTS] 2000 Omega Speedmaster 'Reduced' Ref. 3510.50 with Box & Papers

2000 Omega Speedmaster 'Reduced' Ref. 3510.50 with Box & Papers

Omega - 3510.50 · $3,150
The Omega Speedmaster Reduced Automatic is a 39mm watch that takes design cues from its predecessor, with a Luminova dial and excellent pre-owned condition.

  • Condition: Excellent (very little to no signs of wear)
  • Model: Speedmaster Reduced Automatic
  • Year: 2000 (Estimated)
  • Scope: Box & Papers
Posted at
Apr 24, 2025, 12:44 PM
Active
[WTS] Omega Speedmaster Blue Side of the Moon Moonphase Moonwatch Complete 2024 304.93.44.52.03.001

Omega Speedmaster Blue Side of the Moon Moonphase Moonwatch Complete 2024 304.93.44.52.03.001

This Omega Speedmaster Blue Side of the Moon Moonphase Moonwatch is a complete 2024 model featuring a moon phase display. It shows minimal signs of wear and comes with a range of accessories, including inner and outer boxes, manual, hang tag, travel pouch, Master Chronometer card, Pictogram card, and warranty card dated 2024.

  • Condition: Very good condition, showing minimal signs of wear
  • Boxes included: 2
  • Movement: Master Chronometer card
Posted at
Apr 24, 2025, 11:14 AM
Active
Omega SpeedMaster Moonwatch 311.30.42.30.01.005 Hesalite Crystal SS Box & Paper

Omega SpeedMaster Moonwatch 311.30.42.30.01.005 Hesalite Crystal SS Box & Paper

Omega - 311.30.42.30.01.005 · $4,575.005
Up for sale is an Omega Speedmaster Moon Watch with Hesalite crystal in excellent condition. This timepiece is a collector's item and comes with all original papers and boxes.

  • Condition: Excellent
  • Case material: Stainless Steel
Posted at
Apr 24, 2025, 10:10 AM
Active
Omega Speedmaster Schumacher Red Dial Chronograph Automatic 3510.61

Omega Speedmaster Schumacher Red Dial Chronograph Automatic 3510.61

Omega - 3510.61.00 · $2,730.003
This Omega Speedmaster Schumacher Red Dial Chronograph Automatic is a 38mm chronograph watch with a stainless steel case and mechanical automatic movement.

  • Condition: 90%
  • Case size: 38mm diameter
  • Movement type: Mechanical Automatic
Posted at
Apr 24, 2025, 8:48 AM
Active
Omega Speedmaster Date 3513.50

Omega Speedmaster Date 3513.50

Omega - 3513.50 · $1,800.002
A beautiful Omega Speedmaster Date in overall very good condition, featuring a black dial and comfortable bracelet.

  • Condition: Very good condition with normal wear on the case and bracelet
  • Size: 39mm diameter
  • Movement: Cal 1152
  • Accessories: Double boxed with warranty card
Posted at
Apr 23, 2025, 10:54 PM
Active
Omega Speedmaster Reduced Two Tone

Omega Speedmaster Reduced Two Tone

Omega - 3714.20.80 · $2,500.003
A two-tone Omega Speedmaster Reduced with a white dial, gold subdials, and an 18k gold bezel. It's a classic piece that stands out on the wrist.

  • Condition: Overall good condition, some wear on the case and bezel
  • Movement: Cal 1140
  • Case size: 39mm diameter
Posted at
Apr 23, 2025, 10:50 PM
Active