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 '57 Full Kit!

Omega Speedmaster '57 Full Kit!

Omega - '57 · $5,000
This is a recently acquired Omega Speedmaster '57, still under warranty and coming with full kit. The case, crystal, and bezel are in excellent condition.

  • Condition: Preowned with desk diving on bracelet
  • Warranty: Topper Warranty AND Omega warranty
  • Payment methods: Zelle, PPFF, Venmo
  • Shipping location: US
Posted at
Mar 13, 2026, 6:04 PM
Active
[WTS] Omega Speedmaster Professional “Reverse Panda” 42MM - Ref 310.30.42.50.01.004 (NEW / UNWORN 2026 COMPLETE SET)

Omega Speedmaster Professional “Reverse Panda” 42MM - Ref 310.30.42.50.01.004 (NEW / UNWORN 2026 COMPLETE SET)

Omega - 310.30.42.50.01.004 · $10,800
For sale is a 42MM Omega Speedmaster Professional ‘Reverse Panda’, in true new condition, with all original packaging and documentation.

  • Condition: new, unworn, unsized
  • Warranty date: 03/12/2026
  • Included items: outer sleeve, outer box, inner box, cards, manuals, AD shipping coffin, serialized hangtag, UPC sticker, microfiber, travel case
Posted at
Mar 13, 2026, 3:59 PM
Active
[WTS] Omega Speedmaster Racing 40mm Blue Dial – Full Set – $2,950

Omega Speedmaster Racing 40mm Blue Dial – Full Set – $2,950

Up for sale is my Omega Speedmaster Racing with the blue dial and black textured sub-dials, featuring a 40mm automatic chronograph powered by the Omega Co-Axial Caliber 3330.

  • Condition: Very good pre-owned condition
  • Case size: 40mm diameter
  • Strap: Aftermarket strap and original Omega stainless steel bracelet included
Posted at
Mar 13, 2026, 3:44 PM
Active
[WTS] Omega Speedmaster Racing 329.30.44.51.04.001 COMPLETE SET 2024

Omega Speedmaster Racing 329.30.44.51.04.001 COMPLETE SET 2024

This Omega Speedmaster Racing features a white dial and comes in its complete set, including double boxed packaging and all relevant documentation.

  • Condition: Excellent
  • Payment Methods Accepted: cryptocurrency, local meetups, other methods
  • Trades Allowed: yes, only for brands: Tudor, Cartier, Rolex, Omega, Breitling, AP
  • Location: southwest FL
Posted at
Mar 13, 2026, 2:18 PM
Active
[WTS] Omega Speedmaster Reduced 3510.50 Excellent Condition + Serialized Hand Tag

Omega Speedmaster Reduced 3510.50 Excellent Condition + Serialized Hand Tag

Omega - 3510.50 · $2,650
This Omega Speedmaster Reduced is in excellent condition with hardly any signs of wear for its age, and it comes with a serialized hand tag.

  • Condition: Excellent
  • Serial number included: yes, with serialized hand tag
  • Payment methods accepted: cash, crypto (with fee), other payment methods
  • Trade options: Tudor, Cartier, Rolex, Omega, Breitling, AP
Posted at
Mar 13, 2026, 2:13 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch Full Steel Yellow Patina 1978 (Serviced)

Omega Speedmaster Professional Moonwatch Full Steel Yellow Patina 1978 (Serviced)

Omega - 145.022-78 · $5,050
This Omega Speedmaster Professional Moonwatch is a well-preserved and reliable example of the Speedmaster Moonwatch from 1978. It features an original black tritium dial with even yellow patina across all hour markers, adding warmth and character to the watch.

  • Condition: Very good overall shape, all-original condition
  • Case diameter: 42mm
  • Year of production: 1978
  • Bracelet size: 7.6–7.7 inches (19.7 cm)
Posted at
Mar 13, 2026, 1:02 PM
Active
[WTS] Omega Speedmaster Reduced 3510.82 " Blue " JDM LE - $4199 - DHL

Omega Speedmaster Reduced 3510.82 " Blue " JDM LE - $4199 - DHL

Omega - 3510.82 · $499
This Omega Speedmaster Reduced Limited Edition is a beautiful example of the Japanese market's exclusive 'Blue' dial, produced in 2003 and limited to 1,500 pieces.

  • Condition: Good (9/10)
  • Limited edition size: 1,500 pieces
  • Case size: 39mm diameter
  • Condition rating: 9/10
Posted at
Mar 13, 2026, 11:43 AM
Active
[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, a full kit.

  • Case size: 40mm diameter
  • Material: Steel and Yellow Gold
Posted at
Mar 13, 2026, 10:36 AM
Active
[WTS] Omega Speedmaster Date 3513.50 $1,800

Omega Speedmaster Date 3513.50 $1,800

Omega - 3513.50 · $1,800
This Omega Speedmaster Date features a deep sunburst textured black dial with a classic polished bezel, powered by the Omega 1152, Valjoux 7750 date automatic chronograph.

  • Condition: Good
  • Case size: 39mm diameter
  • Wrist size limit: 7.3-inch wrist
Posted at
Mar 13, 2026, 10:00 AM
Active