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 Dark Side Of The Moon Pitch Black. Complete set. $7200

Omega Speedmaster Dark Side Of The Moon Pitch Black. Complete set. $7200

A bold and ultra-modern take on the iconic Moonwatch, made entirely from sleek black ceramic.

  • Condition: Excellent, mint-tier condition with virtually no signs of wear
  • Case Size: 44.25mm diameter
  • Movement: OMEGA Calibre 9300 Co-Axial Automatic Chronometer with 60-Hour Power Reserve
Posted at
May 17, 2026, 9:42 PM
Active
[WTS] FIRST ONE WAS GIVEN TO THE PRESIDENT! Rare Vintage 18K Gold Omega Speedmaster “Tribute to Astronauts” Ref BA145.022 - Unpolished Collector Dream!

FIRST ONE WAS GIVEN TO THE PRESIDENT! Rare Vintage 18K Gold Omega Speedmaster “Tribute to Astronauts” Ref BA145.022 - Unpolished Collector Dream!

Omega - BA145.022-69 · $47,500
This is one of the coolest watches ever made, a rare vintage 18K gold Omega Speedmaster 'Tribute to Astronauts' ref BA145.022-69. Only 1014 were made, starting in November 1969, and this is one of them.

  • Condition: Unpolished, all original with incredible patina forming on the gold
  • Dial material: 18K gold
  • Bezel condition: Correct DON (dot over 90) maroon bezel with light wear
  • Case size: 42MM
Posted at
May 17, 2026, 9:26 PM
Active
[WTS] Rare Vintage Omega Speedmaster Teutonic Hand Wound Gray Dial Ref 145.0044 - $2750 SHIPPED!

Rare Vintage Omega Speedmaster Teutonic Hand Wound Gray Dial Ref 145.0044 - $2750 SHIPPED!

Omega - 145.0044 · $2,750
A rare vintage Omega Speedmaster Teutonic Hand Wound Gray Dial, made for the German market in the early 1980s, characterized by its bead-blasted case and integrated bracelet.

  • Condition: Pre-owned with wear, mostly scratches and nicks on the bezel
  • Case size: 42MM diameter
  • Bezel condition: Ghost with scratches and nicks
  • Crystal type: Sapphire
Posted at
May 17, 2026, 9:15 PM
Active
[WTS] Omega / Speedmaster date / Silver Dial / 40mm / Full Set

Omega / Speedmaster date / Silver Dial / 40mm / Full Set

Omega - 3211.30.00 · $3,250
A silver dial Omega Speedmaster date watch in excellent condition, 40mm in size.

  • Condition: Excellent Condition
  • Case Size: 40mm
Posted at
May 17, 2026, 7:24 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch 310.30.42.50.01.002 – 2023 – Sapphire – Full Set

Omega Speedmaster Professional Moonwatch 310.30.42.50.01.002 – 2023 – Sapphire – Full Set

A manually-wound Omega Speedmaster Professional Moonwatch with a 42mm stainless steel case and black dial, featuring a Master Chronometer certification.

  • Condition: Excellent
  • Case Size: 42mm diameter
  • Water Resistance: unknown
  • Crystal Type: Sapphire
Posted at
May 17, 2026, 6:59 PM
Active
[WTS] 2002 Omega Speedmaster Reduced Marui LE ref. 3510.21 - Full Set

2002 Omega Speedmaster Reduced Marui LE ref. 3510.21 - Full Set

Omega - 3510.21 · $7,450
This Omega Speedmaster Reduced Marui LE is a stainless steel watch with a cream dial and LumiNova lume, powered by the automatic Omega 3220 movement.

  • Condition: pristine, almost no wear, minor hairlines
  • Case material: stainless steel
  • Diameter: 39mm
  • Lug width: 18mm
Posted at
May 17, 2026, 5:25 PM
Active
[WTS] Omega Speedmaster Professional Bracelet

Omega Speedmaster Professional Bracelet

Omega - 3570.50 · $550
A Speedmaster Professional from Omega with a 1998/849 bracelet, featuring a 20mm end link and full links included.

  • Condition: Great condition
  • Bracelet type: Omega Speedmaster 1998/849
  • End link size: 20mm
Posted at
May 17, 2026, 4:41 PM
Active
[WTS] Omega Speedmaster Mark II. 327.10.43.50.01.001.

Omega Speedmaster Mark II. 327.10.43.50.01.001.

This Omega Speedmaster Mark II is a large watch that fits well on the wrist. It's in very good condition and comes with additional photos available upon request.

  • Condition: very good
  • Shipping: NJ USA
Posted at
May 17, 2026, 2:51 PM
Active