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

Reference 310.55.42.50.52.004

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

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 "Mitsukoski". Box, Card, links. Limited to 300 pieces. 3570.31.

Omega Speedmaster "Mitsukoski". Box, Card, links. Limited to 300 pieces. 3570.31.

Omega - 3570.31 · $16,750
This Omega Speedmaster 'Mitsukoski' is a limited edition model with only 300 pieces produced, featuring strong lume and an Omega-marked crystal.

  • Condition: Very clean
  • Case Size: 40mm diameter
  • Water Resistance: No specified depth rating
Posted at
Feb 2, 2026, 7:22 PM
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[WTS] Omega Speedmaster 38 Chronograph 324.30.38.50.02.001 $3999

Omega Speedmaster 38 Chronograph 324.30.38.50.02.001 $3999

Omega - 324.30.38.50.02.001 · $3,999
For sale is my Omega Speedmaster 38mm Chronograph, it still has some of the original stickers and comes with box and papers.

  • Condition: like new mint condition
  • Size: 38mm diameter
Posted at
Feb 2, 2026, 6:54 PM
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[WTS] Omega Speedmaster Legend Schumacher ref 3506.61 *PRICE DROP*

Omega Speedmaster Legend Schumacher ref 3506.61 *PRICE DROP*

Omega - 3506.61 · $3,999
This Omega Speedmaster Legend Schumacher features a striking red dial and special collection engraved case back, with a stainless steel bracelet.

  • Condition: like new
  • Case material: stainless steel
  • Bracelet: full links attached stainless steel bracelet
  • Warranty included: yes
Posted at
Feb 2, 2026, 6:49 PM
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[WTS] Horus Rubber Straps for Omega Speedmaster & Moonswatch + Fits other brands (Well below retail)

Horus Rubber Straps for Omega Speedmaster & Moonswatch + Fits other brands (Well below retail)

· $49
Horus rubber straps designed for Omega Speedmasters and Moonswatches. They are made of supple material and come in various colors.

  • Condition: Like New
  • Colors: 12 different colors: Blue Lavender, Light pink, Red, Navy blue w/ white stripe, Translucent Lime Green, Sky Blue, Cream, Hot Pink
  • Compatible Brands: Omega Speedmaster, Sinn, Zelos Swordfish, Heuer, Seamasters, IWC
Posted at
Feb 2, 2026, 5:09 PM
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[WTS] Omega Speedmaster Moonwatch 42mm White Box & Papers

Omega Speedmaster Moonwatch 42mm White Box & Papers

Omega - 310.30.42.50.04.001 · $5,500
The Omega Speedmaster Moonwatch 42mm features a sleek silver case, black bezel, and mechanical manual movement with 26 jewels.

  • Condition: very good
  • Movement Type: mechanical manual
  • Jewels: 26
Posted at
Feb 2, 2026, 3:29 PM
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[WTS] OMEGA Speedmaster date with card $2200

OMEGA Speedmaster date with card $2200

OMEGA - Speedmaster date · $2,200
A Classic Omega Speedmaster date is being sold, and comes with an undated warranty card.

  • Condition: Works as expected
  • Warranty: undated
  • Shipping: within CONUS
Posted at
Feb 2, 2026, 1:10 PM
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[WTS] Omega Speedmaster Moonphase 304.33.44.52.03 Blue Dial 44.25mm Full Set

Omega Speedmaster Moonphase 304.33.44.52.03 Blue Dial 44.25mm Full Set

Omega - 304.33.44.52.03.001 · $7,494
This Omega Speedmaster Moonphase features a blue dial with the moonphase complication at 6 o'clock and is powered by Omega's Co-Axial Master Chronometer automatic movement.

  • Condition: Very good
  • Case size: 44.25mm diameter
  • Movement type: Co-Axial Master Chronometer automatic
  • Complications: Chronograph with moonphase
Posted at
Feb 2, 2026, 10:43 AM
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[WTS] Omega Speedmaster Moonswatch Ref 311.30.42.30.01.005

Omega Speedmaster Moonswatch Ref 311.30.42.30.01.005

Omega - 311.30.42.30.01.005 · $3,900
This Omega Speedmaster Professional Moonwatch is a model from the years 2014-2016, featuring watch and service papers from 2021.

  • Year Of Manufacture: 2014-2016
  • Label: with label
Posted at
Feb 2, 2026, 9:56 AM
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[WTS] Omega Speedmaster Aventurine Dial 304.93.44.52.03.002

Omega Speedmaster Aventurine Dial 304.93.44.52.03.002

Omega - 304.93.44.52.99.001 · $11,250
A standout piece in the modern Moonphase lineup featuring a blue aventurine dial with shimmering star-field effect.

  • Material: Ceramic case with 18K Sedna Gold
  • Dial: Blue aventurine with moonphase & date pointer
  • Case size: 44.25mm diameter
Posted at
Feb 2, 2026, 9:09 AM
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