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

Reference 310.55.42.50.52.002

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

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 Reduced 39mm Serviced ⏱

Omega Speedmaster Reduced 39mm Serviced ⏱

Omega - Speedmaster Reduced · $2,250
  • Condition: Pre-owned, serviced
  • Case Size: 39mm diameter
  • Lug To Lug: 45mm length
  • Lug Width: 18mm width
Posted at
Jan 28, 2026, 9:30 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Professional Moonwatch Steel Step Dial Yellow Patina 1969 (Serviced)

Omega Speedmaster Professional Moonwatch Steel Step Dial Yellow Patina 1969 (Serviced)

Omega - 145.022-69 · $4,995
This Omega Speedmaster Moonwatch features a step dial and yellow patina, showcasing visible signs of use that add character.

  • Condition: Very nice overall condition, with honest wear consistent with age
  • Size: 42mm diameter
  • Year: 1969
  • Case condition: Visible signs of use that add character
Posted at
Jan 28, 2026, 9:24 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Reduced

Omega Speedmaster Reduced

Omega - 3510.50 · $2,500
Selling my Omega Speedy Reduced, a 39mm case size watch with a bracelet that fits about an 18cm wrist.

  • Case Size: 39mm diameter
  • Wrist Fit: fits about 18cm wrist
Posted at
Jan 28, 2026, 8:21 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Professional Moonwatch 3573.50

Omega Speedmaster Professional Moonwatch 3573.50

Omega - 3573.50 · $4,350
For sale is an Omega Speedmaster Professional Moonwatch reference 3573.50, this watch is in excellent condition with hardly any signs of wear.

  • Condition: Excellent
  • Payment Methods Accepted: crypto, other methods including a fee
  • Local Pickup Available: yes
  • Trade In Eligible Brands: Tudor, Cartier, Rolex, Omega, Breitling, AP
Posted at
Jan 28, 2026, 2:23 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Sapphire Sandwich 310.30.42.50.01.002

Omega Speedmaster Sapphire Sandwich 310.30.42.50.01.002

Omega - 310.30.42.50.01.002 · $5,500
A Omega Speedmaster Moonwatch Professional 'Sapphire Sandwich' in excellent condition, featuring a 3861 movement and a full set with bracelet.

  • Condition: Excellent, minor fit issues with bracelet
  • Bracelet Length: ~7.5"
  • Links Extra: 2
Posted at
Jan 28, 2026, 2:20 PM
Active
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[WTS] Omega speedmaster Hesalite Full set $4,200

Omega speedmaster Hesalite Full set $4,200

Omega - Speedmaster · $4,200
This is a listing for an Omega Speedmaster with Hesalite crystal.

  • Key1: Hesalite
Posted at
Jan 28, 2026, 1:19 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Sapphire Sandwich 310.30.42.50.01.002

Omega Speedmaster Sapphire Sandwich 310.30.42.50.01.002

Omega - 310.30.42.50.01.002 · $5,500
A Omega Speedmaster Moonwatch Professional with a 3861 movement and sapphire crystal caseback.

  • Condition: Excellent, minor fitment issue on the bracelet
  • Movement: Calibre 3861
  • Bracelet size: ~7.5" wrist, with 2 extra links for adjustment
Posted at
Jan 28, 2026, 11:17 AM
Active
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[WTS] Omega Speedmaster FOIS 310.30.40.50.06.001 — Full Set — 2024 — Warranty to 2029

Omega Speedmaster FOIS 310.30.40.50.06.001 — Full Set — 2024 — Warranty to 2029

Omega - 310.30.40.50.06.001 · $6,850
This Omega Speedmaster FOIS is a modern reissue of the model worn by astronaut Wally Schirra during the Mercury-Atlas 8 mission. It features straight lugs, a symmetrical case, and the hand-wound Caliber 3861 with Master Chronometer certification.

  • Condition: great pre-owned condition, light normal wear
  • Caliber: hand-wound Caliber 3861
  • Warranty Expires: 2029
  • Case Size: 40mm diameter
Posted at
Jan 28, 2026, 11:03 AM
Active
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[WTS] (Serviced) Omega Speedmaster Reduced Sapphire Crystal 3539.50 39mm $2,700

(Serviced) Omega Speedmaster Reduced Sapphire Crystal 3539.50 39mm $2,700

Omega - 3539.50 · $2,700
  • Case diameter: 39mm
Posted at
Jan 27, 2026, 10:13 PM
Active
View listing on r/WatchExchange