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 Calibre 321 "Ed White" Ref. 311.30.40.30.01.001 - ULTIMATE SET!

OMEGA Speedmaster Calibre 321 "Ed White" Ref. 311.30.40.30.01.001 - ULTIMATE SET!

OMEGA - 311.30.40.30.01.001 · $18,000
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
  • Material: stainless steel
  • Size: 39.7mm diameter
  • Caseback material: sapphire
Posted at
Dec 22, 2025, 9:11 AM
Active
[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!

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

OMEGA - 311.92.44.30.01.001 · $10,000
The OMEGA Speedmaster 'Dark Side of the Moon' Apollo 8 commemorates the 50th anniversary of the Apollo 8 mission, a technical and artistic tribute to space exploration. This watch features a black ceramic case, skeletonized dial, laser-ablated lunar surface, and Calibre 1869 movement with blackened bridges.

  • Condition: UNWORN
  • Case material: black ceramic
  • Diameter: 44.25mm
  • Movement: Calibre 1869
Posted at
Dec 22, 2025, 9:06 AM
Active
[WTS][US] Omega Speedmaster Broad Arrow - White Dial - 42mm - 3551.20.00 - Full Set

[US] Omega Speedmaster Broad Arrow - White Dial - 42mm - 3551.20.00 - Full Set

Omega - 3551.20.00 · $4,200
A 42mm Omega Speedmaster Broad Arrow with a white dial, part of the full set including box and manuals.

  • Condition: Fantastic condition with minor hairlines
  • Case size: 42mm diameter
Posted at
Dec 22, 2025, 7:12 AM
Active
[WTS] Omega Speedmaster Moonwatch White Dial

Omega Speedmaster Moonwatch White Dial

Selling my white dial Omega Speedmaster Moonwatch in excellent condition.

  • Condition: Excellent with minor wear
  • scratches: small on clasp and bracelet links
  • Warranty card date: 04/25
Posted at
Dec 22, 2025, 3:12 AM
Active
[WTS] Omega Speedmaster “The 1957 Trilogy” 60th Anniversary Limited Edition 311.10.39.30.01.001 - With accessories - Repost

Omega Speedmaster “The 1957 Trilogy” 60th Anniversary Limited Edition 311.10.39.30.01.001 - With accessories - Repost

The Omega Speedmaster 'The 1957 Trilogy' is a limited edition watch celebrating the 60th anniversary of this iconic model.

  • Condition: Excellent pre-owned condition
  • Accessories: booklets, straps, strap changer, travel case, tag Double box, open card
Posted at
Dec 22, 2025, 12:11 AM
Active
[WTS] 2025 Omega Speedmaster “White Dial” – Ref. 310.30.42.50.04.001 – 2025 – Full Set – Excellent Condition

2025 Omega Speedmaster “White Dial” – Ref. 310.30.42.50.04.001 – 2025 – Full Set – Excellent Condition

This is a 2025 Omega Speedmaster with a white dial, full set and in phenomenal condition.

  • Condition: Excellent
  • Case size: 42mm
  • Movement: Omega Co-Axial Master Chronometer chronograph
Posted at
Dec 21, 2025, 9:30 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch Tropical Brown Dial Heavy Patina Blue Insert 1969 (Box/Serviced) 🟤

Omega Speedmaster Professional Moonwatch Tropical Brown Dial Heavy Patina Blue Insert 1969 (Box/Serviced) 🟤

Omega - 145.022-69 · $15,150
A 1969 Omega Speedmaster Moonwatch in beautiful condition, featuring a tropical brown dial with heavy yellow patina and a blue bezel.

  • Condition: Beautiful condition, with thick and sharp lugs, but polished in the past.
  • Size: 42mm
  • Year: 1969
  • Case material: unknown
Posted at
Dec 21, 2025, 9:19 PM
Active
[WTS] 2025 Omega Speedmaster Two Counters Titanium Blue 44.25mm Full Set

2025 Omega Speedmaster Two Counters Titanium Blue 44.25mm Full Set

A modern take on the Speedmaster, this titanium two-register chronograph provides a lightweight feel and refined appearance with a blue dial and bezel.

  • Condition: Excellent
  • Movement: 9300 Co-Axial movement
  • Power reserve: 60h power reserve
  • Case material: Titanium
Posted at
Dec 21, 2025, 8:40 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 · $10,995
This Omega Speedmaster Ed White Ref. 105.003-65 is a historic and collectible variant, featuring a stunning brown tropical dial with rich patina and tritium hands that glow under UV light.

  • Condition: very good
  • Diameter: 39mm
  • Year: 1965
  • Material: stainless steel
Posted at
Dec 21, 2025, 3:19 PM
Active