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 GSOTM Meterorite, Full Set w/ Extra Strap

Omega Speedmaster GSOTM Meterorite, Full Set w/ Extra Strap

Omega - 311.63.44.51.99.001 · $12,000
A mint condition Omega Speedmaster Grey Side of the Moon Meteorite, a limited edition timepiece featuring a solid Sedna gold bezel and ceramic case, available with an original gray alligator leather strap as well as an additional brand new black alligator leather strap.

  • Condition: Excellent
  • Case size: 44.25mm
  • Movement: Automatic
  • Case material: Ceramic
Posted at
Mar 15, 2026, 1:18 PM
Active
[WTS] Omega Speedmaster Date 40 Box Papers Excellent Condition Blue Dial

Omega Speedmaster Date 40 Box Papers Excellent Condition Blue Dial

Omega - 3212.80.00 · $3,198
The Omega Speedmaster Date Chronograph is one of OMEGA's most iconic timepieces, featuring a date window and iconic Seamster logo on the caseback.

  • Condition: Excellent Condition
  • Case Material: Steel
  • Bracelet Material: Bracelet
  • Box Papers: Yes
Posted at
Mar 15, 2026, 1:14 PM
Active
[WTS] Omega Speedmaster Silver 40 Box Papers

Omega Speedmaster Silver 40 Box Papers

Omega - 3212.80.00 · $2,999
The Omega Speedmaster is a chronograph date watch with small seconds and tachymeter, featuring an iconic design.

  • Condition: Pre-Owned with minor scratches
  • Case Material: Steel
  • Bracelet Material: Bracelet
  • Dimensions: 40 mm diameter
Posted at
Mar 15, 2026, 1:05 PM
Active
[WTS] Omega Speedmaster. 39mm. Mother of Pearl Dial. Clean. OEM Strap/Deployant Clasp..

Omega Speedmaster. 39mm. Mother of Pearl Dial. Clean. OEM Strap/Deployant Clasp..

Omega - Speedmaster · $2,350
This Omega Speedmaster features a 39mm case and mother of pearl dial.

  • Condition: Clean
  • Case Size: 39mm
  • Strap Type: OEM Strap/Deployant Clasp
Posted at
Mar 15, 2026, 11:32 AM
Active
[WTS] 2022 Omega Speedmaster Moonwatch Professional – 310.30.42.50.01.001 - $5899 Shipped

2022 Omega Speedmaster Moonwatch Professional – 310.30.42.50.01.001 - $5899 Shipped

For sale is a 2022 Omega Speedmaster Moonwatch Professional in excellent condition, showing light signs of normal wear and running properly.

  • Condition: Excellent overall condition with light signs of normal wear only
  • Case size: 42mm
  • Movement type: Manual wind chronograph
  • Crystal material: Hesalite
Posted at
Mar 15, 2026, 2:41 AM
Active
[WTS] Omega Speedmaster Reduced 39mm Ref. 175.0032 Cal 1140 TRITIUM PATINA

Omega Speedmaster Reduced 39mm Ref. 175.0032 Cal 1140 TRITIUM PATINA

Omega - 175.0032 · $2,550
This Omega Speedmaster Reduced features a beautiful tritium patina on its dial, giving it an authentic vintage character.

  • Condition: Honest signs of use consistent with its age, scratches on case and bracelet
  • Movement: Omega Caliber 1140 Automatic (46 jewels)
  • Case Size: 39mm
  • Caseback: Solid Omega press on caseback
Posted at
Mar 15, 2026, 1:38 AM
Active
[WTS] Omega Speedmaster Reduced 39mm Ref. 175.0032 Cal 3220 Excellent Condition

Omega Speedmaster Reduced 39mm Ref. 175.0032 Cal 3220 Excellent Condition

Omega - 175.0032 · $2,650
This neo-vintage Omega Speedmaster Reduced features a beautifully proportioned 39mm case and an original black dial with tritium luminous material.

  • Condition: Excellent with very few signs of wear
  • Case size: 39mm diameter
  • Movement caliber: 3220 (Automatic, 47 Jewels)
  • Dial type: Original black dial with SWISS MADE transitional dial
Posted at
Mar 15, 2026, 1:21 AM
Active
[WTS] Omega Speedmaster Professional Moonwatch ref. 145.022 circa 1978

Omega Speedmaster Professional Moonwatch ref. 145.022 circa 1978

Omega - 145.022 · $4,400
A circa 1978 Omega Speedmaster Professional Moonwatch ref. 145.022, featuring a Lemania based caliber 861 movement, in a classic 42mm case.

  • Condition: Used, with wear and signs of polish
  • Movement: Lemania based caliber 861
  • Case size: 42mm diameter
  • Lug width: 20mm
Posted at
Mar 14, 2026, 8:50 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch White Dial Complete Set w/ Box, Papers and Warranty!

Omega Speedmaster Professional Moonwatch White Dial Complete Set w/ Box, Papers and Warranty!

  • Box: yes, with box and papers
  • Warranty: still under warranty
  • Dial: white dial
Posted at
Mar 14, 2026, 5:18 PM
Active