Omega Speedmaster Speedmaster Professional Moonwatch 3861 Canopus Gold - Sapphire / Silver - Sapphire / Bracelet

Reference 310.55.42.50.52.003

About this watch

The Omega Speedmaster Professional Moonwatch 3861 Canopus Gold is a masterpiece of luxury watchmaking, blending historical significance with cutting-edge technology. This stunning timepiece features a 42mm white gold case, set with gemstones and adorned with a sunburst finish on the dial. The manual-winding chronograph movement is crafted in-house by Omega's skilled artisans, boasting a co-axial escapement and silicon balance spring for exceptional accuracy and resistance to magnetic fields. With its Master Chronometer certification from METAS, this watch meets the highest standards of precision and reliability. The Speedmaster Professional Moonwatch 3861 Canopus Gold is more than just a timepiece - it's a work of art that exudes sophistication and refinement.
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Key Features

  • 42mm white gold case with gem-set bezel
  • Manual-winding chronograph movement with co-axial escapement
  • Silicon balance spring for resistance to magnetic fields
  • Master Chronometer certification from METAS
  • Sapphire crystal with 50m water resistance
  • Stunning sunburst finish on the dial
  • Gem-set indexes and stick hands

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch 3861 Canopus Gold - Sapphire / Silver - Sapphire / Bracelet
Reference
310.55.42.50.52.003
Movement
3861
Movement Features
  • Small Seconds, Hours, Minutes
  • Chronograph
  • Chronometer
Case
White Gold 42mm
Dial Color
Silver
Crystal
Sapphire
Water Resistance
50

Current Listings

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This Omega Speedmaster 38 Co-Axial Chronograph features a silver dial and comes with various accessories, including the original bracelet and inner box.

  • Condition: Excellent overall condition, very minimal wear
  • Case material: Stainless steel
  • Bracelet type: Original Omega stainless steel bracelet
  • Additional straps: Brown leather strap
Posted at
Mar 9, 2026, 4:41 PM
Active
[WTS] Omega Speedmaster Skywalker X-33 Titanium Chronograph 31890457901001 = Box Paper

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The Omega Speedmaster Skywalker X-33 is a technologically advanced timepiece designed for professional use, featuring a black dial and full titanium construction.

  • Condition: Pre-owned with honest signs of previous wear
  • Case size: 45mm diameter
  • Bezel condition: attractive condition
  • Dial condition: perfect in every way
Posted at
Mar 9, 2026, 4:30 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch Yellow Patina 1974 (Unpolished)

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Omega - 145.022-74 · $5,495
The Omega Speedmaster reference 145.022-74 represents the authentic moon landing heritage in pristine, unpolished condition. This manual winding caliber 861 chronograph showcases remarkable preservation with factory-sharp case edges and original finishing intact throughout its 42mm steel case.

  • Condition: unpolished, unrestored
  • Case dimensions: 42 x 48mm
  • Year of production: 1974
  • Movement caliber: 861 chronograph
Posted at
Mar 9, 2026, 4:04 PM
Active
[WTS] Hruodland Quartz Chronograph- Vintage Omega Speedmaster TV Dial Homage

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Omega - Speedmaster · $5,000
This watch is a vintage homage to the iconic Omega Speedmaster with a TV dial design, featuring quartz chronograph functionality.

  • Year: vintage
Posted at
Mar 9, 2026, 12:56 PM
Active
[WTS] [WTT] Omega Speedmaster Moonwatch. White Dial. Bracelet. Full Kit. Ref. 310.30.42.50.04.001

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A white dial Omega Speedmaster Professional Moonwatch on a steel bracelet, reference 310.30.42.50.04.001 is being sold with its full kit, including box, cards, and warranty.

  • Condition: Very good
  • Case size: 42mm diameter
  • Bracelet links included: yes
  • Box and cards included: yes
Posted at
Mar 9, 2026, 7:05 AM
Active
[WTS] Omega Speedmaster Reduced 3510.50

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Omega - 3510.50 · $2,800
A Omega Speedmaster Reduced 3510.50, a 39mm watch with hesalite crystal and dial lume with even cream coloring.

  • Condition: Pretty good condition considering the age with signs of light wear.
  • Case size: 39mm
  • Crystal material: hesalite
Posted at
Mar 9, 2026, 2:29 AM
Active
[WTS] Omega Speedmaster Date ref. 3212.80.00 40mm | Great Condition (with Original Box & Serviced) | $2600

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Omega - 3212.80.00 · $2,600
The Omega Speedmaster Date ref. 3212.80.00 features a 40mm stainless steel case, deep blue dial, and classic tri-compax layout with running seconds, 30-minute counter, and 12-hour chronograph totalizer.

  • Condition: Great condition
  • Case size: 40mm diameter
  • Bracelet length: 7.5-7.7 inches
  • Movement power reserve: 44 hours
Posted at
Mar 8, 2026, 10:58 PM
Active
[WTS] Omega Speedmaster ’57 Gold on Leather Strap 2025 MINT FULL 331.22.42.51.01.001

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The Omega Speedmaster Co-Axial Chronograph is a luxurious everyday chronograph with serious pedigree, blending legendary heritage with refined execution.

  • Condition: Mint, minimal signs of wear
  • Case Size: 41.5 mm diameter
  • Thickness: 16.17 mm
  • Lug To Lug: 50 mm
Posted at
Mar 8, 2026, 10:36 PM
Active
[WTS] Omega Speedmaster Professional 3570.50.00 (Hesalite) 1861 cal

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Omega - 3570.50.00 · $3,999
Selling an Omega Speedmaster Professional 3570.50.00 (Hesalite) 1861 cal watch in good condition, with a full service at Omega AD in 2022 and original papers from the first owner.

  • Condition: good condition
  • Year of purchase: 2014
  • Bracelet condition: has scratches on clasp area due to typing on a laptop
  • Additional accessories: extra NATO strap
Posted at
Mar 8, 2026, 9:34 PM
Active