Omega Speedmaster Speedmaster Professional Moonwatch 3861 Canopus Gold - Rainbow / Silver - Rainbow / Bracelet

Reference 310.55.42.50.52.002

About this watch

The Omega Speedmaster Professional Moonwatch 310.55.42.50.52.002 is a legendary timepiece that combines stunning aesthetics with advanced horological technology. This manual-winding chronograph movement boasts exceptional precision and reliability, featuring a co-axial escapement and silicon balance spring. The watch's luxurious materials, including Canopus gold and gem-set bezel, add a sophisticated touch. With its water resistance of 50 meters, this watch is perfect for everyday adventures. The Speedmaster series is Omega's flagship line, known for its association with space exploration, making it a worthy investment for collectors and enthusiasts.
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Key Features

  • Omega caliber 3861 movement
  • Canopus gold case and bezel
  • Gem-set indexes and rainbow accents
  • Chronograph function with co-axial escapement
  • Silicon balance spring for exceptional reliability
  • Water resistance of 50 meters

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch 3861 Canopus Gold - Rainbow / Silver - Rainbow / Bracelet
Reference
310.55.42.50.52.002
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 Apollo 17 45th Anniversary 311.30.42.30.03.001 $6,900

Omega Speedmaster Apollo 17 45th Anniversary 311.30.42.30.03.001 $6,900

This Omega Speedmaster Apollo 17 is a commemorative edition of the iconic watch, featuring a unique design and excellent condition.

  • Condition: Excellent, freshly polished
  • Length: 18.5cm bracelet length
  • Shipping: 4-5 business days to US
Posted at
May 11, 2026, 8:55 AM
Active
[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 · $10,700
A brand new Omega Speedmaster Moonwatch Professional in reverse panda style with a 42mm case size.

  • Condition: Brand new, unworn, and pristine
  • Case Size: 42mm
  • Box And Papers: true
Posted at
May 11, 2026, 7:48 AM
Active
[WTS] Omega Speedmaster Reduced 3510.21 Limited Edition (2,000 Pcs) Marui 39mm , B&P  - $5,350

Omega Speedmaster Reduced 3510.21 Limited Edition (2,000 Pcs) Marui 39mm , B&P - $5,350

Omega - 3510.21 Marui · $5,350
Up for sale is my Omega Speedmaster 3510.21, a limited edition watch with an automatic movement and 39mm case.

  • Condition: Very good condition (8.9/10)
  • Movement type: Automatic
  • Case size: 39mm
  • Bracelet type: Original Omega Steel
Posted at
May 10, 2026, 9:10 PM
Active
[WTS] Omega Speedmaster Moonwatch Professional 3861 Sapphire 310.32.42.50.01.002 – Full Set – $6,500

Omega Speedmaster Moonwatch Professional 3861 Sapphire 310.32.42.50.01.002 – Full Set – $6,500

This Omega Speedmaster Moonwatch Professional Sapphire Sandwich features a 42mm stainless steel case and the 3861 Omega Master Chronometer movement.

  • Case Size: 42mm diameter
  • Material: stainless steel
  • Movement: Omega Master Chronometer
Posted at
May 10, 2026, 6:36 PM
Active
[WTS] Omega Speedmaster Moonphase 304.33.44.52.01.001

Omega Speedmaster Moonphase 304.33.44.52.01.001

This Omega Speedmaster features a moonphase complication, automatic co-axial movement 9904, and comes with box, papers, and tag.

  • Condition: Good pre-owned condition
  • Size: 44.25mm diameter
  • Movement: Automatic
  • Strap: Omega leather strap
Posted at
May 10, 2026, 4:51 PM
Active
[WTS] PRICE DROP! Vintage Omega Speedmaster Teutonic Gray Dial Ref 145.0044 Rare German Market Outside-The-Box Speedy

PRICE DROP! Vintage Omega Speedmaster Teutonic Gray Dial Ref 145.0044 Rare German Market Outside-The-Box Speedy

Omega - 145.0044 · $2,750
A rare Omega Speedmaster Teutonic Gray Dial Ref 145.0044 made for the German market in the early 1980s. It has a bead-blasted case, integrated bracelet, and original tritium lume.

  • Condition: Pre-owned with wear, scratches, and nicks
  • Diameter: 42mm
  • Movement: Manual wound Omega cal 861
  • Bracelet size: up to app 7.25 inches
Posted at
May 10, 2026, 4:49 PM
Active

2022 Omega Speedmaster Moonwatch Sapphire 42mm 310.30.42.50.01.002 Mint Complete

This 2022 Omega Speedmaster Moonwatch Sapphire 42mm is a first watch worn on the moon, featuring photos and a video on the seller's website.

  • Condition: Minty fresh
  • Case size: 42mm
  • Year: 2022
  • Contents: watch,inner & outer boxes,warranty card,pictogram,master chronometer,instruction booklet,black travel case,hang tag,cleaning cloth,Moonwatch Booklet
Posted at
Apr 7, 2025, 2:59 PM
Active
Omega Speedmaster Chronograph  - Blue - Stainless Steel - 38mm - Mint

Omega Speedmaster Chronograph - Blue - Stainless Steel - 38mm - Mint

This Omega Speedmaster Chronograph features a 38mm stainless steel case, blue dial, and automatic movement.

  • Condition: Pre-Owned - Mint
  • Case size: 38mm diameter
  • Bracelet type: Stainless Steel
  • Dial color: Blue
Posted at
Apr 5, 2025, 6:13 PM
Active
Omega Speedmaster 321 Ed White

Omega Speedmaster 321 Ed White

This Omega Speedmaster 321 Ed White is an original purchase from a US OB in 2023, worn sparingly since.

  • Condition: Good condition with minor scuffs
  • Warranty: includes warranty cards
  • Links: all links included
Posted at
Apr 4, 2025, 6:34 PM
Active