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 Sapphire - 310.30.42.50.01.002, Full Set, Excellent condition!

Omega Speedmaster Sapphire - 310.30.42.50.01.002, Full Set, Excellent condition!

Omega - 310.30.42.50.01.002 · $6,480
This Omega Speedmaster Sapphire is a classic model with a sapphire sandwich design and is in amazing condition. It presents as new and features a running great movement with no issues.

  • Condition: Excellent, 98%
  • Movement Status: running great
  • Chrono Functionality: works flawlessly
Posted at
May 24, 2026, 3:11 PM
Active
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[WTS] 2023 Omega Speedmaster Moonphase Blue Side of the Moon 304.93.44.52.03.001 Full Set - $9,395

2023 Omega Speedmaster Moonphase Blue Side of the Moon 304.93.44.52.03.001 Full Set - $9,395

Omega - 304.93.44.52.03.001 · $9,395
Up for sale is a Omega Speedmaster Moonwatch - Blue Side of the Moon, a 2023 model with various accessories included.

  • Condition: Excellent condition with minimal signs of wear
  • Year: 2023
  • Shipping: Fully insured in the USA through Fedex free of charge within 24 hours
Posted at
May 24, 2026, 11:42 AM
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[WTS] 2020 Omega Speedmaster Moonphase Black 304.30.44.52.01.001 Full Set - $7,995

2020 Omega Speedmaster Moonphase Black 304.30.44.52.01.001 Full Set - $7,995

Omega - 304.30.44.52.01.001 · $7,995
Up for sale is a Omega Speedmaster Moonphase Black, a watch in excellent condition with minimal signs of wear.

  • Condition: Excellent condition with minimal signs of wear
  • Year: 2020
  • Box Contents: Watch, Inner & Outer Box, Card Holder, International Warranty Card, Pictograms Card, Master Chronometer Card, Instructions Manual
Posted at
May 24, 2026, 11:41 AM
Active
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[WTS] Omega Speedmaster MK40 Ref. 3520.53 | Triple Calendar Automatic Chronograph | Grey Delugs Strap | $2,850

Omega Speedmaster MK40 Ref. 3520.53 | Triple Calendar Automatic Chronograph | Grey Delugs Strap | $2,850

Omega - 3520.53 · $2,850
This Omega Speedmaster MK40 features a multicolor dial layout with chronograph, day, date, month, and 24-hour indication in a very wearable automatic case.

  • Condition: Good pre-owned condition
  • Movement: Automatic chronograph
  • Case size: Approx. 39mm
  • Lug width: 18mm
Posted at
May 23, 2026, 6:47 PM
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[WTS] Omega Speedmaster Professional Moonwatch Hesalite on Forstner Presidential – $3600

Omega Speedmaster Professional Moonwatch Hesalite on Forstner Presidential – $3600

Omega - Speedmaster Professional Moonwatch Hesalite · $3,600
  • Forstner presidential buckle:
Posted at
May 23, 2026, 4:43 PM
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[WTS] 20mm Omega Integrated Speedmaster OEM Black Rubber Strap & Omega OEM Clasp - (Backordered) STD Length

20mm Omega Integrated Speedmaster OEM Black Rubber Strap & Omega OEM Clasp - (Backordered) STD Length

Posted at
May 23, 2026, 4:17 PM
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[WTS] Omega Speedmaster FOIS “First Omega in Space”. 310.32.40.50.06.002. Full Kit.

Omega Speedmaster FOIS “First Omega in Space”. 310.32.40.50.06.002. Full Kit.

Omega - 310.32.40.50.06.002 · $6,295
  • Model name: Speedmaster FOIS 'First Omega in Space'
  • Shipping: Fedex with insurance worldwide
Posted at
May 23, 2026, 10:50 AM
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[WTS] Memorial Day Weekend Sale – Omega Speedmaster Professional 3861 Sapphire (2022) – Full Set – Original Clasp + Micro-adjust Clasp – $6375 + shipping obo

Memorial Day Weekend Sale – Omega Speedmaster Professional 3861 Sapphire (2022) – Full Set – Original Clasp + Micro-adjust Clasp – $6375 + shipping obo

Omega - 3861 Sapphire · $6,375
This is the latest generation Omega Speedmaster Professional Moonwatch with a Co-Axial Master Chronometer movement and sapphire crystal front and back, available in excellent overall condition.

  • Condition: Excellent overall condition, very light wear from normal use
  • Movement: Co-Axial Master Chronometer
  • Crystal: sapphire crystal, both front and back
Posted at
May 23, 2026, 9:56 AM
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[WTS] Omega Speedmaster Professional (310.30.42.50.01.002)

Omega Speedmaster Professional (310.30.42.50.01.002)

Omega - 310.30.42.50.01.002 · $6,550
This Omega Speedmaster Professional features a black dial, sapphire crystal on a steel bracelet, and is in excellent condition with only a few light marks.

  • Condition: Excellent condition with a few light marks
  • Case Size: 42mm diameter
  • Case Material: Stainless Steel
  • Bracelet Material: Stainless Steel
Posted at
May 23, 2026, 7:27 AM
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View listing on r/WatchExchange