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] [USA] Omega Speedmaster Professional 'Sapphire Sandwich' (310.30.42.50.01.002) – 2025 Like-New Complete Set 🚨$6,795🚨

[USA] Omega Speedmaster Professional 'Sapphire Sandwich' (310.30.42.50.01.002) – 2025 Like-New Complete Set 🚨$6,795🚨

A timeless icon, the Omega Speedmaster Professional 'Sapphire Sandwich', powered by Calibre 3861, is offered as a complete set with box, warranty cards, serial tag, and art manual. Originally dated August 2025, it remains covered under Omega's 5-year factory warranty.

  • Condition: Mint, like-new
  • Movement: Calibre 3861
  • Year: 2025
  • Warranty: 5-year factory warranty through August 2030
Posted at
Dec 28, 2025, 10:27 PM
Active
[WTS] 1991 Omega Speedmaster Moonwatch Ref 3590.50 with abstract

1991 Omega Speedmaster Moonwatch Ref 3590.50 with abstract

Omega - 3590.50 · $4,099
This Omega Speedmaster Moonwatch is a 1991 model with caliber 861 movement and tritium dial and hands. The watch comes with an extract from the Omega archives matching its serial number and a vintage poster.

  • Condition: Excellent vintage condition, unpolished
  • Movement: Caliber 861
  • Serial number: 482774XX
  • Bracelet size: 6.8"
Posted at
Dec 28, 2025, 6:37 PM
Active
[WTS] Omega Speedmaster Pilot Master Chronometer 40.5mm 332.10.41.51.01.002 Automatic

Omega Speedmaster Pilot Master Chronometer 40.5mm 332.10.41.51.01.002 Automatic

This Omega Speedmaster Pilot Automatic watch is a recent release that embodies a tool watch with an unique look and feel, inspired by the 1957 original.

  • Condition: excellent plus preowned
  • Case Diameter: 40.8mm
  • Water Resistance Depth: 100m
  • Movement Power Reserve: 60 hrs
Posted at
Dec 27, 2025, 10:42 PM
Active
[WTS] Omega Speedmaster Dark Side of the Moon 311.92.44.30.01.001 | Ceramic |FULL SET

Omega Speedmaster Dark Side of the Moon 311.92.44.30.01.001 | Ceramic |FULL SET

This Omega Speedmaster Dark Side of the Moon features a full-ceramic case and buckle.

  • Condition: Mint, like-new
  • Case material: full-ceramic
  • Payment methods: Zelle, Venmo, or Western Union
Posted at
Dec 27, 2025, 8:35 PM
Active
[WTS] [EU] Omega Speedmaster Olympic games Beijing

[EU] Omega Speedmaster Olympic games Beijing

This Omega Speedmaster Olympic games Beijing is an automatic chronograph with a white dial and tachymeter bezel, featuring 50m water resistance. It comes in a stainless steel case size of approx. 39mm.

  • Condition: Good - scratches on bezel, scratches on crystal, dents under bezel, small chip on sapphire crystal
  • Case size: 39mm diameter
  • Movement type: Automatic
  • Complications: Chronograph
Posted at
Dec 27, 2025, 2:00 PM
Active
[WTS] Omega Speedmaster. 39mm. Sapphire. 3539.50. 🔥

Omega Speedmaster. 39mm. Sapphire. 3539.50. 🔥

Omega - 3539.50 · $3,275
This Omega Speedmaster is a 39mm automatic watch with a sapphire crystal, available for sale.

  • Case size: 39mm diameter
  • Crystal type: sapphire
Posted at
Dec 27, 2025, 10:01 AM
Active
[WTS] Omega Speedmaster Racing Panda. Full set. Unworn bracelet. Extra OEM straps. Warranty 2026. $7500 obo

Omega Speedmaster Racing Panda. Full set. Unworn bracelet. Extra OEM straps. Warranty 2026. $7500 obo

Omega - Speedmaster · $7,500
A Omega Speedmaster Racing Panda with a full set, unworn bracelet, extra OEM straps and warranty until 2026 for sale.

  • Warranty Expiration Year: 2026
Posted at
Dec 26, 2025, 9:03 PM
Active
[WTS]🔥OMEGA SPEEDMASTER SAPPHIRE SANDWICH BRAND NEW 12/2025 COMPLETE🔥

🔥OMEGA SPEEDMASTER SAPPHIRE SANDWICH BRAND NEW 12/2025 COMPLETE🔥

This listing is for a brand new OMEGA Speedmaster Sapphire Sandwich, dated December 2025.

  • Condition: BRAND NEW/UNWORN
  • Case size: 42mm diameter
  • Material: Stainless Steel
Posted at
Dec 26, 2025, 4:38 PM
Active
[WTS] Omega Speedmaster Moonwatch Professional 3861 Sapphire 310.30.42.50.01.002 – Full Set – $6,500

Omega Speedmaster Moonwatch Professional 3861 Sapphire 310.30.42.50.01.002 – Full Set – $6,500

A newer Omega Speedmaster Moonwatch Professional, purchased in April 2023 and worn sparingly since.

  • Condition: Excellent with minor scratches and swirling on polished surfaces
  • Case material: Sapphire crystal
  • Bracelet: Micro adjust
Posted at
Dec 26, 2025, 3:27 PM
Active