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

Reference 310.55.42.50.52.004

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

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 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 features a yellow patina black tritium dial and a 42mm case with sharp lugs. The watch is fitted with its original bracelet and has been professionally serviced in February 2026.

  • Condition: Very good overall shape with some polishing on the case
  • Size: 42mm diameter
  • Year: 1978
  • Case material: full steel
Posted at
Apr 13, 2026, 12:18 PM
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[WTS] Omega Speedmaster Date Chronometer 3210.50.00 — Big Seahorse, Cal. 1164 (Serviced) — $2,200 Shipped (Tariff Coverd)

Omega Speedmaster Date Chronometer 3210.50.00 — Big Seahorse, Cal. 1164 (Serviced) — $2,200 Shipped (Tariff Coverd)

Omega - 3210.50.00 · $2,200
  • Condition: Honest wear consistent with age
  • Case serial: 86172720
  • Caseback medallion: Big Seahorse
  • Movement: Omega Cal. 1164 (ETA 7750 base)
Posted at
Apr 13, 2026, 12:13 PM
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[WTS][US] Omega Speedmaster Moonwatch Professional - Reverse Panda - 42mm - 310.30.42.50.01.004 - Full Set - BRAND NEW

[US] Omega Speedmaster Moonwatch Professional - Reverse Panda - 42mm - 310.30.42.50.01.004 - Full Set - BRAND NEW

Omega - 310.30.42.50.01.004 · $10,900
This Omega Speedmaster Moonwatch Professional features a 42mm case and is part of the Reverse Panda collection.

  • Condition: Brand new, unworn
  • Size: 42mm diameter
  • Set: Full Set
Posted at
Apr 13, 2026, 8:31 AM
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[WTS] BNIB Omega Speedmaster Professional 310.30.42.50.01.001 $6,800

BNIB Omega Speedmaster Professional 310.30.42.50.01.001 $6,800

Omega - 310.30.42.50.01.001 · $6,800
The Omega Speedmaster Professional features a robust and elegant 42mm stainless steel case powered by the updated caliber 3861 movement with its Co-Axial escapement, offering enhanced durability, accuracy, and visibility of the dial.

  • Condition: Brand new in box with warranty
  • Case size: 42mm diameter
  • Case thickness: 13.2mm height
  • Lug width: 20mm
Posted at
Apr 12, 2026, 4:32 PM
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[WTS] Omega Speedmaster Professional Sapphire Sandwich 2021 $6795

Omega Speedmaster Professional Sapphire Sandwich 2021 $6795

Omega - Speedmaster Professional Sapphire Sandwich 2021 · $6,795
This Omega Speedmaster Professional is a sapphire sandwich model from 2021.

  • Image Url: https://imgur.com/a/BQeTMO3
Posted at
Apr 12, 2026, 12:41 PM
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[WTS] Omega Speedmaster Schumacher Reduced - 3510.80

Omega Speedmaster Schumacher Reduced - 3510.80

Omega - 3510.80 · $3,799
The Omega Speedmaster Racing CART Edition is a rare and highly sought-after watch in excellent/mint condition, featuring a 39mm stainless steel case and vibrant signature blue dial.

  • Condition: Excellent/Mint
  • Case Size: 39mm diameter
  • Material: stainless steel
Posted at
Apr 12, 2026, 12:45 AM
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[WTS] PRICE DROP! Rare Vintage Omega Speedmaster Teutonic Ghost Gray Dial Bead Blasted Ref 145.0044

PRICE DROP! Rare Vintage Omega Speedmaster Teutonic Ghost Gray Dial Bead Blasted Ref 145.0044

Omega - 145.0040 · $2,795
This rare vintage Omega Speedmaster Teutonic features a gray ghost dial, bead-blasted case, and integrated bracelet. It has a manual wound cal 861 movement, chronograph functions, and original tritium lume.

  • Condition: Pre-owned with wear, scratches, and nicks
  • Diameter: 42mm
  • Movement: Manual wound Omega cal 861
  • Bracelet length: up to app 7.25 inches
Posted at
Apr 11, 2026, 8:17 PM
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[WTS] OMEGA Speedmaster Professional Moonwatch Sapphire Sandwich - Spiralwinder Ceramic Bezel Installed (+$260), OEM Bezel Included - Full Kit - 2025 Card - Quick Adjust Clasp - $6175 shipped CONUS

OMEGA Speedmaster Professional Moonwatch Sapphire Sandwich - Spiralwinder Ceramic Bezel Installed (+$260), OEM Bezel Included - Full Kit - 2025 Card - Quick Adjust Clasp - $6175 shipped CONUS

OMEGA - Speedmaster Professional Moonwatch · $6,175
Up for sale is my OMEGA Speedmaster sapphire sandwich, a daily wear watch from an authorized dealer in 2025. The watch has been maintained and passes a 5 bar pressure test. It is priced accordingly due to its cosmetic condition.

  • Condition: Pre-owned, daily wear with scratches and desk dive marks
  • Year: 2025
  • Ownership: Second owner
  • Authentication: [object Object]
Posted at
Apr 11, 2026, 6:43 PM
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[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
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