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

[WTS] OMEGA Speedmaster Date 40mm 18k Bezel Full Kit

OMEGA Speedmaster Date 40mm 18k Bezel Full Kit

Up for sale is a Omega Speedmaster Date 40mm Steel/Yellow Gold Ref. 323.21.40.40.02.001, this is a full kit.

  • Case material: Steel/Yellow Gold
  • Size: 40mm
Posted at
Feb 25, 2026, 10:05 AM
Active
[WTS] Omega Speedmaster Broad Arrow 321.10.42.50.01.001 2019 $3,999 [USA]

Omega Speedmaster Broad Arrow 321.10.42.50.01.001 2019 $3,999 [USA]

This Omega Speedmaster Broad Arrow features a 2019 card, crisp case, and is running perfectly on a massive bracelet.

  • Condition: Incredible-condition
  • Dimensions: 42mm diameter
  • Year: 2019
Posted at
Feb 25, 2026, 9:43 AM
Active
[WTS] Omega Speedmaster Reduced 1 Ref : 3510.50 Price 2100$

Omega Speedmaster Reduced 1 Ref : 3510.50 Price 2100$

Omega - 3510.50 · $2,100
This Omega Speedmaster Reduced 1 is a 38mm automatic watch with a black dial, available for sale.

  • Condition: Good Condition
  • Size: 38mm diameter
  • Movement: Automatic
Posted at
Feb 24, 2026, 11:29 PM
Active
[WTS] Omega Speedmaster Ref: 3513.50.00 S. Steel 39mm Automatic

Omega Speedmaster Ref: 3513.50.00 S. Steel 39mm Automatic

Omega - 3513.50.00 · $1,600
Up for sale is an Omega Speedmaster Automatic Ref. 3513.50.00 (39mm) with a black dial, baton hour markers, and tachymeter bezel.

  • Condition: Excellent pre-owned, lightly refinished
  • Case Size: 39mm diameter
Posted at
Feb 24, 2026, 8:36 PM
Active
[WTS] Omega Speedmaster Professional Moon Watch / 42mm Ref. 310.30.42.50.01.001 / Box & Cards / Year 2023 /$6000

Omega Speedmaster Professional Moon Watch / 42mm Ref. 310.30.42.50.01.001 / Box & Cards / Year 2023 /$6000

Up for sale is a manual wind, full-sized Omega Speedmaster Professional aka the “Moon Watch” with a hesalite crystal, easy adjust bracelet, and complete set from 2023.

  • Condition: Excellent
  • Case size: 42mm diameter
  • Calibre: 3186
  • Year of manufacture: 2023
Posted at
Feb 24, 2026, 7:57 PM
Active
[WTS] Omega Speedmaster Moonwatch Professional - White Dial (310.30.42.50.04.001) - Full Set - June 2024

Omega Speedmaster Moonwatch Professional - White Dial (310.30.42.50.04.001) - Full Set - June 2024

This Omega Speedmaster Moonwatch Professional features a white dial and is described as like-new, with perfect function.

  • Condition: like-new
Posted at
Feb 24, 2026, 7:11 PM
Active
[WTS] Omega Speedmaster Moonwatch Professional - White Dial (310.30.42.50.04.001) -  Full Set - UNWORN

Omega Speedmaster Moonwatch Professional - White Dial (310.30.42.50.04.001) - Full Set - UNWORN

This Omega Speedmaster Moonwatch Professional has a white dial and is a full set, including the watch, box, special case, user manual, and warranty card.

  • Condition: Unworn
  • Case condition: Pristine
  • Bracelet condition: Pristine
Posted at
Feb 24, 2026, 2:00 PM
Active
[WTS] Omega Speedmaster Blue Side of the Moon | Aventurine Dial | 304.93.44.52.03.002 | Full Set

Omega Speedmaster Blue Side of the Moon | Aventurine Dial | 304.93.44.52.03.002 | Full Set

Omega - 304.93.44.52.03.002 · $11,250
The Omega Speedmaster Blue Side of the Moon features a stunning aventurine dial that comes alive in light, housed in a 44.25mm case.

  • Condition: Excellent condition
  • Diameter: 44.25mm
Posted at
Feb 24, 2026, 1:02 PM
Active
[WTS] Omega Speedmaster Dark Side of the Moon - Vintage Black

Omega Speedmaster Dark Side of the Moon - Vintage Black

The Omega Speedmaster Dark Side of the Moon 'Vintage Black' features an all-black ceramic case with brown indexes and hands, complemented by a 'vintage' Super-LumiNova dial. The watch is powered by the OMEGA Co-Axial calibre 9300.

  • Condition: Excellent overall, with a well-worn strap and pristine ceramic case
  • Lug Width: 21 mm
  • Lug To Lug: 49.80 mm
  • Case Diameter: 44.25 mm
Posted at
Feb 24, 2026, 11:25 AM
Active