Omega Speedmaster Speedmaster Professional Moonwatch 3861 Canopus Gold - Baguette / Silver - Diamond / Bracelet

Reference 310.55.42.50.52.004

About this watch

The Omega Speedmaster Professional Moonwatch 310.55.42.50.52.004 is a masterpiece of luxury watchmaking, marrying cutting-edge technology with exquisite craftsmanship. This modern iteration of the iconic 'Moonwatch' pays homage to its rich history while incorporating contemporary advancements. The Canopus Gold case features a sunburst finish and gem-set bezel, radiating elegance and opulence. The manual-winding chronograph movement boasts 50 hours of power reserve and resistance to magnetic fields up to 15,000 gauss. With its robust features, stunning design, and historical significance, this timepiece is a worthy investment for serious collectors and space enthusiasts. Its impeccable performance and timeless appeal make it a statement piece that will remain a favorite for years to come.
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Key Features

  • Manual-winding chronograph movement
  • Canopus Gold case with sunburst finish and gem-set bezel
  • Master Chronometer certification by METAS
  • Resistance to magnetic fields up to 15,000 gauss
  • 50 hours of power reserve
  • Co-Axial escapement and Silicon balance spring

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch 3861 Canopus Gold - Baguette / Silver - Diamond / Bracelet
Reference
310.55.42.50.52.004
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" Apollo 8 Ref. 311.92.44.30.01.001 + Apollo 8 Gen2 Strap + Deployant Clasp - ULTIMATE SET! 🔥$10,000🔥

OMEGA Speedmaster "Dark Side of the Moon" Apollo 8 Ref. 311.92.44.30.01.001 + Apollo 8 Gen2 Strap + Deployant Clasp - ULTIMATE SET! 🔥$10,000🔥

OMEGA - 311.92.44.30.01.001 · $10,000
The OMEGA Speedmaster 'Dark Side of the Moon' Apollo 8 watch commemorates the 50th anniversary of the Apollo 8 mission, featuring a black ceramic case and laser-ablated dial to represent the lunar surface. It has a Calibre 1869 movement with blackened bridges and mainplate.

  • Condition: UNWORN
  • Case material: black ceramic
  • Case size: 44.25mm
  • Movement: Calibre 1869
Posted at
Feb 1, 2026, 1:57 PM
Active
[WTS] OMEGA Speedmaster Calibre 321 "Ed White" Ref. 311.30.40.30.01.001 - ULTIMATE SET! 🔥$17,500🔥

OMEGA Speedmaster Calibre 321 "Ed White" Ref. 311.30.40.30.01.001 - ULTIMATE SET! 🔥$17,500🔥

OMEGA - 311.30.40.30.01.001 · $17,500
The OMEGA Speedmaster Calibre 321 Ref. 311.30.40.30.01.001 is a faithful recreation of the reference 105.003, famously worn by astronaut Ed White during America's first spacewalk.

  • Condition: UNWORN
  • Maker: OMEGA
  • Model name: Speedmaster Calibre 321 'Ed White'
  • Case size: 39.7mm diameter
Posted at
Feb 1, 2026, 1:45 PM
Active
[WTS] OEM OmegaSpeedmaster Moonwatch Black Rubber Strap and Deployant Clasp - $575

OEM OmegaSpeedmaster Moonwatch Black Rubber Strap and Deployant Clasp - $575

Omega - 032Z017245 · $575
Additional Details: Selling my rubber strap and deployant clasp for the Omega Speedmaster as I rarely use it since I prefer the bracelet.

  • Origin: purchased direct from an Omega boutique
  • Original Accessory: yes, OEM
Posted at
Feb 1, 2026, 12:49 PM
Active
[WTS] Omega Speedmaster “Ed White” Cal. 321 Tropical Dial Heavy Patina (Serviced)

Omega Speedmaster “Ed White” Cal. 321 Tropical Dial Heavy Patina (Serviced)

Omega - 105.003-65 · $9,850
This Omega Speedmaster Ed White Ref. 105.003-65 is an original and period correct watch from 1965, featuring a stunning brown tropical dial with rich patina.

  • Condition: Very good condition
  • Case size: 39mm diameter
  • Year: 1965
  • Dial type: Tropical dial
Posted at
Feb 1, 2026, 11:14 AM
Active
[WTS] Omega Speedmaster Dark Side of the Moon "Vintage"

Omega Speedmaster Dark Side of the Moon "Vintage"

This Omega Speedmaster Dark Side of the Moon Vintage Edition is a rare and no longer made version that features a black ceramic case.

  • Condition: nearly perfect
  • Movement Accuracy: +0s/day
  • Case Dimensions: 44mm diameter, 49mm lug-to-lug
  • Watch Weight: 99 grams
Posted at
Feb 1, 2026, 9:54 AM
Active
[WTS] Omega Speedmaster Schumacher MK40 Cartoon Ref : 3520.53.00 Condition Good Price : 3100$

Omega Speedmaster Schumacher MK40 Cartoon Ref : 3520.53.00 Condition Good Price : 3100$

Omega - 3520.53.00 · $3,100
This Omega Speedmaster Schumacher MK40 is a 39mm grey dial watch featuring the caliber 1151 movement.

  • Condition: Good
  • Size: 39mm case diameter
  • Dial Color: grey
Posted at
Jan 31, 2026, 10:23 PM
Active
[WTS] Omega Speedmaster Professional, White Lacquer Dial - Full Set - $7200

Omega Speedmaster Professional, White Lacquer Dial - Full Set - $7200

This Omega Speedmaster Professional features a white lacquer dial and is accompanied by a full set of accessories.

  • Condition: 10/10, brand new in box (BNIB)
  • Movement: Master Chronometer Omega Cal. 3861
  • Case size: 42mm
Posted at
Jan 31, 2026, 8:00 PM
Active
[WTS] Omega Speedmaster $1800

Omega Speedmaster $1800

Omega - Speedmaster · $1,800
A Speedmaster watch is being sold for $1800. The watch is a well-known model from Omega. It ships only in the US, implying it may not be available internationally.

  • Shipping restrictions: ships only in the US
Posted at
Jan 31, 2026, 7:09 PM
Active
[WTS] 2024 Omega Speedmaster 38 Orbis Edition 324.30.38.50.03.002 Full Set Excellent

2024 Omega Speedmaster 38 Orbis Edition 324.30.38.50.03.002 Full Set Excellent

This 2024 Omega Speedmaster 38 Orbis Edition features a unique blend of classic Speedmaster DNA and Omega's partnership with Orbis International.

  • Condition: Excellent
  • Year: 2024
  • Contents: Full Set
Posted at
Jan 31, 2026, 2:17 PM
Active