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 Reduced 3510.50 Omega Buckle

Omega Speedmaster Reduced 3510.50 Omega Buckle

Omega - 3510.50 · $2,075
For sale is an Omega Speedmaster Reduced in great condition with a nice patina on the dial.

  • Condition: great condition with some patina on the dial and wear on the strap and clasp
  • Band type: leather
  • Buckle type: Omega original
Posted at
Apr 17, 2026, 12:05 PM
Active
[WTS] Omega Speedmaster Hesalite 2023, $5700

Omega Speedmaster Hesalite 2023, $5700

This Omega Speedmaster Hesalite is a recent model, released in 2023, featuring a Preowned Condition with its original box and warranty.

  • Condition: Preowned
  • Shipping cost: $100 for USA
  • Payment options: Wire or Credit Card (+4.9% & 4 days clearance)
  • Warranty included: 2023 warranty
Posted at
Apr 17, 2026, 10:24 AM
Active
[WTS][US] Omega Speedmaster Calibre 321 - Ed White - Black Dial - 39.7mm - 311.30.40.30.01.001 - Full Set

[US] Omega Speedmaster Calibre 321 - Ed White - Black Dial - 39.7mm - 311.30.40.30.01.001 - Full Set

Omega - 311.30.40.30.01.001 · $15,700
Up for sale is an Omega Speedmaster Calibre 321 - Ed White - Black Dial - 39.7mm - Full Set, functions perfectly mechanically without issue.

  • Condition: pristine condition with minor hairlines on clasp, case, and bracelet
  • Case size: 39.7mm
  • Bracelet condition: pristine condition with minor hairlines on clasp, case, and bracelet
Posted at
Apr 17, 2026, 6:20 AM
Active
[WTS][US] Omega Speedmaster Moonwatch Professional - White Dial - 310.30.42.50.04.001 - Full Set

[US] Omega Speedmaster Moonwatch Professional - White Dial - 310.30.42.50.04.001 - Full Set

Up for sale is an Omega Speedmaster Moonwatch Professional - White Dial - 310.30.42.50.04.001 - Full Set Watch is in pristine condition and functions perfectly mechanically, without issue.

  • Condition: pristine with minor hairlines on clasp, case, and bracelet
  • Case size: 42mm diameter
Posted at
Apr 17, 2026, 6:14 AM
Active
[wts] 2025 Omega Speedmaster Chronoscope 
329.30.43.51.03.001 $6599

2025 Omega Speedmaster Chronoscope 329.30.43.51.03.001 $6599

  • Model name: Speedmaster Chronoscope
Posted at
Apr 17, 2026, 1:09 AM
Active
[WTS] Omega Speedmaster Date 3212.80

Omega Speedmaster Date 3212.80

Omega - 3212.80 · $1,999
A beautiful blue Omega Speedy Date 3212.80 in overall good condition with some minor imperfections.

  • Condition: Good condition with normal wear and scratches on the aluminum bezel
  • Bracelet size fits about: 7 inches
  • Movement: Cal 1164
  • Case diameter: 40mm
Posted at
Apr 16, 2026, 9:36 PM
Active
[WTS] 2010 / Omega / Speedmaster date / Silver Dial / 40mm

2010 / Omega / Speedmaster date / Silver Dial / 40mm

Omega - 3211.30 · $3,500
A 2010 Omega Speedmaster date model featuring a silver dial and 40mm case.

  • Condition: Excellent Condition
  • Case Size: 40mm
Posted at
Apr 16, 2026, 7:20 PM
Active
[WTS] 2022 OMEGA Speedmaster Chrono 38 324.30.38.50.03.001 Full Set Mint Sun Brushed Blue Dial $4975

2022 OMEGA Speedmaster Chrono 38 324.30.38.50.03.001 Full Set Mint Sun Brushed Blue Dial $4975

The OMEGA Speedmaster Chrono 38 is a modern take on the iconic chronograph, featuring a sunburst blue dial and a versatile 38mm case size.

  • Condition: Mint / Like New
  • Case Size: 38mm
  • Movement: Automatic Chronograph (Omega Caliber 3330)
  • Bracelet Length: 20.5 links
Posted at
Apr 16, 2026, 6:51 PM
Active
[WTS] PRICE DROP Omega SpeedMaster 38 324.30.38.50.02.001 Complete Set Excellent Condition

PRICE DROP Omega SpeedMaster 38 324.30.38.50.02.001 Complete Set Excellent Condition

The Omega Speedmaster 38 offers a refined take on the legendary Speedmaster design, combining classic chronograph heritage with a more versatile and wearable case size.

  • Condition: Excellent Condition
  • Case Size: 38mm
  • Case Material: Stainless Steel
  • Bezel: Fixed Tachymeter
Posted at
Apr 16, 2026, 5:51 PM
Active