Omega Speedmaster Speedmaster Professional Moonwatch 3861 Canopus Gold - Baguette / Silver - Diamond / Bracelet

Reference 310.55.42.50.52.004

About this watch

The Omega Speedmaster Professional Moonwatch 310.55.42.50.52.004 is a masterpiece of luxury watchmaking, marrying cutting-edge technology with exquisite craftsmanship. This modern iteration of the iconic 'Moonwatch' pays homage to its rich history while incorporating contemporary advancements. The Canopus Gold case features a sunburst finish and gem-set bezel, radiating elegance and opulence. The manual-winding chronograph movement boasts 50 hours of power reserve and resistance to magnetic fields up to 15,000 gauss. With its robust features, stunning design, and historical significance, this timepiece is a worthy investment for serious collectors and space enthusiasts. Its impeccable performance and timeless appeal make it a statement piece that will remain a favorite for years to come.
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Key Features

  • Manual-winding chronograph movement
  • Canopus Gold case with sunburst finish and gem-set bezel
  • Master Chronometer certification by METAS
  • Resistance to magnetic fields up to 15,000 gauss
  • 50 hours of power reserve
  • Co-Axial escapement and Silicon balance spring

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch 3861 Canopus Gold - Baguette / Silver - Diamond / Bracelet
Reference
310.55.42.50.52.004
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 38 Co-Axial Chronograph 324.30.38.50.02.001

Omega Speedmaster 38 Co-Axial Chronograph 324.30.38.50.02.001

Omega - 324.30.38.50.02.001 $3,999
This Omega Speedmaster 38 Co-Axial Chronograph features a silver dial and is in excellent overall condition with very minimal wear.

  • Condition: Excellent
  • Bracelet Condition: Brand-new, unworn
  • Included Items: Omega inner box,Omega outer box,Instruction manual,Pictograms card,Watchfinder certificate of authenticity
Posted at
Apr 11, 2026, 6:07 PM
Active
[WTS] Omega Speedmaster Professional (310.30.42.50.04.001)

Omega Speedmaster Professional (310.30.42.50.04.001)

Omega - 310.30.42.50.04.001 $7,600
This Omega Speedmaster Professional is the newest reference featuring a white dial on a steel bracelet, in excellent condition with almost no signs of wear.

  • Condition: Excellent
  • Case Size: 42mm diameter
  • Case Material: Stainless Steel
  • Bracelet Material: Stainless Steel
Posted at
Apr 11, 2026, 1:34 PM
Active
[WTS] True Collectors Set! Omega Speedmaster Day-Date "Reduced" | Black Dial Ref. 3520.50 | 39mm | Stainless Steel | Multiple Straps

True Collectors Set! Omega Speedmaster Day-Date "Reduced" | Black Dial Ref. 3520.50 | 39mm | Stainless Steel | Multiple Straps

Omega - 3520.50 $3,550
The Omega Speedmaster Day-Date features a deep black dial and a sophisticated Triple Calendar complication in a 39mm stainless steel case.

  • Condition: Excellent 9/10 Condition
  • Case size: 39mm
  • Movement type: Triple Calendar complication
  • Bracelets: Omega stainless steel bracelet, two aftermarket bracelets (FOIS and leather)
Posted at
Apr 11, 2026, 10:10 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! 馃敟$10,000馃敟

OMEGA Speedmaster "Dark Side of the Moon" Apollo 8 Ref. 311.92.44.30.01.001 + Apollo 8 Gen2 Strap + Deployant Clasp - ULTIMATE SET! 馃敟$10,000馃敟

OMEGA - 311.92.44.30.01.001 $10,000
The OMEGA Speedmaster 'Dark Side of the Moon' Apollo 8 Ref. 311.92.44.30.01.001 commemorates the 50th anniversary of the Apollo 8 mission, a 44.25mm masterpiece crafted from black ceramic with unparalleled scratch resistance and a modern aesthetic.

  • Condition: UNWORN
  • Case material: black ceramic
  • Diameter: 44.25mm
  • Movement: Calibre 1869
Posted at
Apr 10, 2026, 9:18 PM
Active
[WTS] $1800 Omega Speedmaster

$1800 Omega Speedmaster

Omega - Speedmaster $1,800
A watch only listing for an Omega Speedmaster.

Posted at
Apr 10, 2026, 8:02 PM
Active
[WTS] 2025 OMEGA Speedmaster Calibre 321 "Ed White" - Full Set - Very Excellent

2025 OMEGA Speedmaster Calibre 321 "Ed White" - Full Set - Very Excellent

Omega - 311.30.40.30.01.001 $15,800
The Omega Speedmaster Calibre 321 'Ed White' is a highly iconic collector's piece, named after astronaut Ed White, featuring the masterfully crafted 321 Omega movement.

  • Condition: Very Excellent pre-owned condition
  • Year: 2025
  • Case size: 39.7mm diameter
  • Case material: Stainless steel
Posted at
Apr 10, 2026, 5:47 PM
Active
[WTS] Omega Speedmaster Reduced 3510.50 Omega Buckle

Omega Speedmaster Reduced 3510.50 Omega Buckle

Omega - 3510.50 $2,175
This Omega Speedmaster Reduced is a well-maintained timepiece with a nice patina on the dial, original Omega buckle, and hardly any wear on the crystal and case.

  • Condition: great condition, some wear on strap and clasp
  • Buckle type: Omega buckle
  • Payment methods accepted: crypto, cash, bank transfer etc. excluding PayPal
Posted at
Apr 10, 2026, 1:50 PM
Active
[WTS] Omega Speedmaster Racing 326.30.40.50.03.001

Omega Speedmaster Racing 326.30.40.50.03.001

Omega - 326.30.40.50.03.001 $2,650
For sale is an Omega Speedmaster Racing, a watch in great condition running great and comes as watch only.

  • Condition: great condition with some light wear
  • Payment Methods Accepted: crypto and other payment methods (with small fee)
  • Local Meet Available: yes
  • Trade Eligible Brands: Tudor, Cartier, Rolex, Omega, Breitling, AP
Posted at
Apr 10, 2026, 1:46 PM
Active
[WTS] Omega Speedmaster Date 38.5mm 3513.54

Omega Speedmaster Date 38.5mm 3513.54

Omega - 3513.54 $1,725
For sale is an Omega Speedmaster Date 38.5mm reference number 3513.54 from 1998.

  • Condition: good condition with normal wear
  • Year Of Production: 1998
  • Case Size: 38.5mm
Posted at
Apr 10, 2026, 1:45 PM
Active