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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A super rare and unique Omega Speedmaster reduced model with a 39mm case, featuring a stunning Mother of Pearl dial.

  • Condition: Good condition for the age
  • Case size: 39mm
  • Strap type: Leather (factory)
  • Bezel wear: Some wear
Posted at
Apr 18, 2026, 5:59 PM
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  • Condition: Excellent
  • Diameter: 40.5mm
  • Material: stainless steel
Posted at
Apr 18, 2026, 2:38 PM
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  • Condition: Excellent
  • Case material: 18K Sedna gold
  • Diameter: 41.5mm
Posted at
Apr 18, 2026, 2:33 PM
Active
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Omega - 3513.20 · $2,300
This Omega Speedmaster stands out with its white dial and eye-catching red and blue hands, making it a unique piece.

  • Condition: Good Condition, Serviced
  • Case Size: 39mm diameter
  • Crystal: Sapphire crystal
  • Lug Width: 20mm
Posted at
Apr 18, 2026, 12:59 PM
Active
[WTS] Omega Speedmaster Day-Date "Reduced" | Black Dial Ref. 3520.50 | 39mm | Stainless Steel | Full Collector's Set

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  • Size: 39mm diameter
Posted at
Apr 18, 2026, 11:53 AM
Active
[WTS] Omega Speedmaster Automatic 3513.50 - Suede Leather Strap - Good Condition

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Omega - 3513.50 · $1,800
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  • Condition: Good condition with signs of wear
  • Case size: 39mm
  • Material: Automatic
Posted at
Apr 18, 2026, 11:51 AM
Active
[WTS] Omega Speedmaster Professional (310.30.42.50.04.001)

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  • Condition: Excellent
  • Case Size: 42mm
  • Case Material: Stainless Steel
  • Bracelet Material: Stainless Steel
Posted at
Apr 18, 2026, 8:01 AM
Active
[WTS] OMEGA Speedmaster "Dark Side of the Moon" Apollo 8 Ref. 311.92.44.30.01.001 + Apollo 8 Gen2 Strap + Deployant Clasp - ULTIMATE SET! 🔥$10,000🔥

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OMEGA - 311.92.44.30.01.001 · $10,000
This OMEGA Speedmaster 'Dark Side of the Moon' Apollo 8 is a commemorative watch crafted from black ceramic, featuring a skeletonized dial and laser-ablated details to represent the lunar surface. It's powered by the Calibre 1869 movement with blackened bridges and mainplate.

  • Condition: UNWORN
  • Case size: 44.25mm diameter
  • Movement: Calibre 1869
Posted at
Apr 17, 2026, 10:12 PM
Active
[WTS] 2015 Omega Speedmaster Grey Side of the Moon 311.93.44.51.99.001 Full Set $7,500

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A modern and highly distinctive take on the Speedmaster line featuring a full grey ceramic case and matching dial.

  • Condition: Excellent (pre-owned, minimal wear)
  • Case Size: 44.25mm
  • Case Material: Grey ceramic
  • Movement: Automatic chronograph (Omega Co-Axial Calibre 9300)
Posted at
Apr 17, 2026, 9:36 PM
Active