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

Reference 310.55.42.50.52.003

About this watch

The Omega Speedmaster Professional Moonwatch 3861 Canopus Gold is a masterpiece of luxury watchmaking, blending historical significance with cutting-edge technology. This stunning timepiece features a 42mm white gold case, set with gemstones and adorned with a sunburst finish on the dial. The manual-winding chronograph movement is crafted in-house by Omega's skilled artisans, boasting a co-axial escapement and silicon balance spring for exceptional accuracy and resistance to magnetic fields. With its Master Chronometer certification from METAS, this watch meets the highest standards of precision and reliability. The Speedmaster Professional Moonwatch 3861 Canopus Gold is more than just a timepiece - it's a work of art that exudes sophistication and refinement.
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Key Features

  • 42mm white gold case with gem-set bezel
  • Manual-winding chronograph movement with co-axial escapement
  • Silicon balance spring for resistance to magnetic fields
  • Master Chronometer certification from METAS
  • Sapphire crystal with 50m water resistance
  • Stunning sunburst finish on the dial
  • Gem-set indexes and stick hands

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch 3861 Canopus Gold - Sapphire / Silver - Sapphire / Bracelet
Reference
310.55.42.50.52.003
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 Day Date 3523.80

Omega Speedmaster Day Date 3523.80

Omega - 3523.80 · $2,450
For sale is an Omega Speedmaster Day Date with a beautiful blue dial, in excellent condition and running super solid.

  • Condition: excellent
  • Payment methods accepted: crypto, other (with small fee)
  • Location: southwest FL
  • Open to trades for: Tudor, Cartier, Rolex, Omega, Breitling, AP
Posted at
Apr 15, 2026, 10:55 AM
Active
[WTS] Omega Speedmaster Broad Arrow 3594.50

Omega Speedmaster Broad Arrow 3594.50

Omega - 3594.50 · $3,350
A pre-owned Omega Speedmaster Broad Arrow in excellent condition with very little wear.

  • Condition: Excellent condition with very little wear
  • Payment Methods Accepted: Multiple payment methods including crypto
  • Available To Trade For: Tudor, Cartier, Rolex, Omega, Breitling, AP
Posted at
Apr 15, 2026, 10:40 AM
Active
[WTS] Omega Speedmaster Reduced 3510.50 2 AVAILABLE

Omega Speedmaster Reduced 3510.50 2 AVAILABLE

Omega - 3510.50 · $2,550
Two Omega Speedmaster Reduced in great condition for sale, both running solid and coming as watch only.

  • Condition: Great condition, some light wear
  • Bracelet condition: Pretty good
  • Crystals condition: 0 or very minimal scratches
Posted at
Apr 15, 2026, 10:14 AM
Active
[WTS] Omega Speedmaster 3210.50 Black Dial $2,090

Omega Speedmaster 3210.50 Black Dial $2,090

Omega - 3210.50 · $2,090
The Omega Speedmaster Date is a 40mm stainless steel automatic chronograph with a black dial and tachymeter bezel, featuring a sporty classic look and an automatic movement.

  • Condition: pre-owned, good condition with scuffs due to age
  • Case size: 40mm diameter
  • Lug-to-lug length: 45mm
  • Lug width: 19mm
Posted at
Apr 15, 2026, 9:42 AM
Active
[WTS] INCREDIBLE Vintage 18K Gold Omega Speedmaster Tribute to Astronauts Ref BA145.022 Unpolished Holy Grail Example!!!

INCREDIBLE Vintage 18K Gold Omega Speedmaster Tribute to Astronauts Ref BA145.022 Unpolished Holy Grail Example!!!

Omega - BA145.022-69 · $48,500
This is a vintage Omega Speedmaster Tribute to Astronauts ref BA145.022-69, one of the first solid gold Speedmasters produced in 1969.

  • Condition: Excellent, unpolished with patina
  • Case size: 42mm diameter
  • Bracelet length: 7.5 inches
  • Movement: Lemania-based hand wound caliber 861
Posted at
Apr 14, 2026, 9:59 PM
Active
[WTS] Omega Speedmaster '57 - current gen - warranty till Apr 2027

Omega Speedmaster '57 - current gen - warranty till Apr 2027

A current generation Omega Speedmaster '57 with a April 29, 2022 date, featuring a scratch on the crystal near 12 o'clock.

  • Condition: Very good, hairlines and desk diving marks
  • Bracelet size: 17cm
  • Box included: yes
  • Warranty expiration date: Apr 2027
Posted at
Apr 14, 2026, 9:41 PM
Active
[WTS] Omega Speedmaster Triple Calendar w/ EBay authentication

Omega Speedmaster Triple Calendar w/ EBay authentication

This Omega Speedmaster features an automatic chronograph, day, month, and year calendar with a clean and uncluttered dial. The watch is 42 mm in size but wears smaller on the wrist.

  • Condition: Good condition, some signs of use
  • Size: 42mm diameter, 40-41mm on the wrist
  • Authentication: eBay authenticated
Posted at
Apr 14, 2026, 9:02 PM
Active
[WTS] 2024 Omega Speedmaster 38mm Diamond Bezel Gray Dial Full Set Excellent Condition - 324.38.38.50.06.001

2024 Omega Speedmaster 38mm Diamond Bezel Gray Dial Full Set Excellent Condition - 324.38.38.50.06.001

2024 Omega Speedmaster 38mm Diamond Bezel Gray Dial Full Set, in excellent condition.

  • Diameter: 38mm
Posted at
Apr 14, 2026, 7:04 PM
Active
[WTS] New 2026 Omega Speedmaster Professional Hesalite Full Set only $6400

New 2026 Omega Speedmaster Professional Hesalite Full Set only $6400

This brand new Omega Speedmaster Professional is presented in pristine condition and comes complete with its original full set, including a factory warranty card dated 2026.

  • Condition: pristine, unworn
  • Warranty: 5-year international warranty
  • Price Comparison: list price from authorized dealer: $7800 plus tax
Posted at
Apr 14, 2026, 12:27 PM
Active