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][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 · $15,550
Up for sale is an Omega Speedmaster Calibre 321 - Ed White - Black Dial - 39.7mm, functions perfectly mechanically.

  • Condition: pristine condition with minor hairlines on clasp, case, and bracelet
  • Diameter: 39.7mm
Posted at
May 8, 2026, 8:05 AM
Active
[WTS] Omega Speedmaster Hesilate Ref. 310.32.42.50.01.001 Full Set + Original Receipt

Omega Speedmaster Hesilate Ref. 310.32.42.50.01.001 Full Set + Original Receipt

This Omega Speedmaster Moonwatch Professional features a Co-Axial Master Chronometer Caliber 3861 and is in excellent overall condition, with the notable exception of a very minor mark on the Hesalite crystal.

  • Condition: Excellent overall condition with minor mark on Hesalite crystal and light signs of normal wear on case
  • Movement: Co-Axial Master Chronometer Caliber 3861
  • Crystal type: Hesalite
  • Caseback type: Aftermarket exhibition caseback (original solid also included)
Posted at
May 8, 2026, 8:00 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 - Full Set Watch is in pristine condition and functions perfectly mechanically, without issue.

  • Condition: pristine condition with minor hairlines on clasp, case, and bracelet
  • Water Resistance: 30m
  • Box Contents: inner box, outer box, removable travel case, historical booklet, user manual, microfiber cloth, master chronometer card, warranty card
Posted at
May 8, 2026, 7:59 AM
Active
[WTS] Omega Speedmaster Professional (310.30.42.50.01.002)

Omega Speedmaster Professional (310.30.42.50.01.002)

This Omega Speedmaster Professional features a black dial on a stainless steel bracelet, with a sapphire crystal and manual caliber 3861 movement.

  • Condition: Excellent
  • Case size: 42mm diameter
  • Case material: Stainless Steel
  • Bracelet material: Stainless Steel
Posted at
May 8, 2026, 7:11 AM
Active
[WTS] Omega Speedmaster Snoopy New 4/2026, $15.2k!!

Omega Speedmaster Snoopy New 4/2026, $15.2k!!

Omega - 310.32.42.50.02.001 · $15,200
This Omega Speedmaster is a limited edition 'Silver Snoopy Award' 50th Anniversary model, featuring a silver dial with blue accents and a Snoopy medallion.

  • Condition: Brand New In Box (BNIB)
  • Case size: 42mm
  • Movement type: Manual Wind
  • Depth rating: 50m
Posted at
May 8, 2026, 12:50 AM
Active
[WTS] 1971 Omega Speedmaster Ref.145022-69 “ Straight Writing” $10,500 AUD / $7,800USD

1971 Omega Speedmaster Ref.145022-69 “ Straight Writing” $10,500 AUD / $7,800USD

Omega - 145022-69 · $7,800
A clean and honest early 1970s Omega Speedmaster Professional. Fully serviced by LWC in Perth in February 2026.

  • Condition: Honest vintage condition, running well
  • Case Material: Stainless steel
  • Case Size: 42mm diameter
  • Movement Type: Manual wind chronograph (cal. 861)
Posted at
May 7, 2026, 7:26 PM
Active
[WTS] Genuine Omega Leather Strap, Speedmaster

Genuine Omega Leather Strap, Speedmaster

Omega - Speedmaster · $375
Up for sale is a genuine leather Omega Speedmaster band with a stainless steel deployant clasp, characterized by its light and comfortable design.

  • Condition: Genuine leather strap with slight wear
  • Width: 20mm
  • Clasp material: stainless steel
  • Shipping options: US shipping via FedEx or UPS
Posted at
May 7, 2026, 5:52 PM
Active
[wts] 2024 Omega Speedmaster Moonphase
304.33.44.52.03.001 $7299

2024 Omega Speedmaster Moonphase 304.33.44.52.03.001 $7299

This listing features a 2024 Omega Speedmaster Moonphase with two photo-realistic moons, one of OMEGA's most iconic timepieces.

  • Condition: Pre Owned, Cosmetic Condition: 9/10
  • Case Size: 44mm diameter
  • Movement: 9904
  • Power Reserve: 60 Hours
Posted at
May 7, 2026, 4:44 PM
Active
[WTS] Omega Speedmaster Reduced 3510.50 Bracelet Set - 22 Links, Full size, excellent, OEM 1469/811

Omega Speedmaster Reduced 3510.50 Bracelet Set - 22 Links, Full size, excellent, OEM 1469/811

Omega - 3510.50 · $575
A vintage Omega Speedmaster Reduced bracelet set with 22 links, made of stainless steel and featuring an original Omega folding clasp.

  • Condition: Excellent (94/100)
  • Material: Stainless steel
  • Metal finish: Original Omega finish
  • Clasp type: Omega folding clasp
Posted at
May 7, 2026, 3:47 PM
Active